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Zhang M, Liu J, Yu Z, Chen Z, Yang J, Yin Y, Xu S. Supplementation with organic yeast-derived selenium provides immune protection against experimental necrotic enteritis in broiler chickens. Microb Pathog 2024; 192:106691. [PMID: 38759933 DOI: 10.1016/j.micpath.2024.106691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 04/30/2024] [Accepted: 05/13/2024] [Indexed: 05/19/2024]
Abstract
Necrotic enteritis (NE) is a potentially fatal poultry disease that causes enormous economic losses in the poultry industry worldwide. The study aimed to evaluate the effects of dietary organic yeast-derived selenium (Se) on immune protection against experimental necrotic enteritis (NE) in commercial broilers. Chickens were fed basal diets supplemented with different Se levels (0.25, 0.50, and 1.00 Se mg/kg). To induce NE, Clostridium perfringens (C. perfringens) was orally administered at 14 days of age post hatch. The results showed that birds fed 0.25 Se mg/kg exhibited significantly increased body weight gain compared with the non-supplemented/infected birds. There were no significant differences in gut lesions between the Se-supplemented groups and the non-supplemented group. The antibody levels against α-toxin and NetB toxin increased with the increase between 0.25 Se mg/kg and 0.50 Se mg/kg. In the jejunal scrapings and spleen, the Se-supplementation groups up-regulated the transcripts for pro-inflammatory cytokines IL-1β, IL-6, IL-8, iNOS, and LITAF and avian β-defensin 6, 8, and 13 (AvBD6, 8 and 13). In conclusion, supplementation with organic yeast-derived Se alleviates the negative consequences and provides beneficial protection against experimental NE.
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Affiliation(s)
- Meiyu Zhang
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, 266109, China
| | - Jian Liu
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, 266109, China
| | - Zehai Yu
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, 266109, China
| | - Zhiyuan Chen
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, 266109, China
| | - Jiehua Yang
- Qingdao Vland Animal Health Group Co., Ltd., Qingdao, 266111, China
| | - Yanbo Yin
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, 266109, China
| | - Shouzhen Xu
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, 266109, China.
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Wang J, Deng L, Chen M, Che Y, Li L, Zhu L, Chen G, Feng T. Phytogenic feed additives as natural antibiotic alternatives in animal health and production: A review of the literature of the last decade. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2024; 17:244-264. [PMID: 38800730 PMCID: PMC11127233 DOI: 10.1016/j.aninu.2024.01.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 12/26/2023] [Accepted: 01/22/2024] [Indexed: 05/29/2024]
Abstract
The use of antibiotics in animal production raises great public safety concerns; therefore, there is an urgent need for the development of substitutes for antibiotics. In recent decades, plant-derived feed additives have been widely investigated as antibiotic alternatives for use in animal health and production because they exert multiple biological functions and are less likely to induce resistance development. This review summarizes the research history and classification of phytogenic feed additives and their main functions, potential modes of action, influencing factors, and potential negative effects. Further, we highlight the challenges in developing sustainable, safe, and affordable plant-derived antibiotic alternatives for use in livestock production.
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Affiliation(s)
- Jing Wang
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
- Sino-US Joint Laboratory of Animal Science, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Lufang Deng
- Feed Branch of Beijing Sanyuan Breeding Technology Co., Ltd, Beijing 101105, China
| | - Meixia Chen
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
- Sino-US Joint Laboratory of Animal Science, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
| | - Yuyan Che
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Lu Li
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
- College of Life Science and Food Engineering, Hebei University of Engineering, Handan 056038, China
| | - Longlong Zhu
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471023, China
| | - Guoshun Chen
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China
| | - Tao Feng
- Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
- Sino-US Joint Laboratory of Animal Science, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
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Chen P, Lv H, Du M, Liu W, Che C, Zhao J, Liu H. Bacillus subtilis HW2 enhances growth performance and alleviates gut injury via attenuation of endoplasmic reticulum stress and regulation of gut microbiota in broilers under necrotic enteritis challenge. Poult Sci 2024; 103:103661. [PMID: 38547540 PMCID: PMC11000119 DOI: 10.1016/j.psj.2024.103661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 03/04/2024] [Accepted: 03/11/2024] [Indexed: 04/11/2024] Open
Abstract
This study investigated the effects of Bacillus subtilis HW2 on the growth performance, immune response, endoplasmic reticulum (ER) stress, and intestinal health in broilers with necrotic enteritis. Three hundred 1-day-old male Cobb 500 broilers (33.88 ± 2.34 g) were randomly allocated to 5 groups including non-infected control (NC group), basal diet + necrotic enteritis challenge (NE group), basal diet + 1 × 106 CFU/g B. subtilis HW2 + necrotic enteritis challenge (L-Pro group), basal diet + 5 × 106 CFU/g B. subtilis HW2 + necrotic enteritis challenge (M-Pro group), and basal diet + 1 × 107 CFU/g B. subtilis HW2 + necrotic enteritis challenge (H-Pro group), with 6 replicates per group. All broilers except NC group were orally given with sporulated coccidian oocysts at day 14 and Clostridium perfringens from days 19 to 21. Results showed that L-Pro and M-Pro groups improved growth performance and intestinal morphology in necrotic enteritis-challenged broilers, and L-Pro, M-Pro, and H-Pro groups improved intestinal barrier function and immune response and decreased ER stress in necrotic enteritis-challenged broilers. Analysis of the gut microbiota revealed that L-Pro group increased the abundances of Alistipes, Coprobacter, Barnesiella, and Limosilactobacillus, decreased Erysipelatoclostridium abundance on day 42 in necrotic enteritis-challenged broilers. M-Pro group increased Turicibacter abundance on day 28 and the abundances of Alistipes, Barnesiella, and Limosilactobacillus on day 42 in necrotic enteritis-challenged broilers. H-Pro group decreased Romboutsia abundance on day 28 and unidentified_Clostridia abundance on day 42 in necrotic enteritis-challenged broilers. Analysis of short-chain fatty acids (SCFAs) revealed higher isobutyric acid and isovaleric acid levels in L-Pro and M-Pro groups than NE group. Correlation analysis revealed the correlations between the biochemical parameters and gut microbiota as well as SCFAs, especially Romboutsia, Barnesiella, Coprobacter, isobutyric acid, and isovaleric acid. Overall, our results indicated that B. subtilis HW2 supplementation could ameliorate necrotic enteritis infection-induced gut injury. The optimal dietary supplementation dosage of Bacillus subtilis HW2 was 5 × 106 CFU/g.
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Affiliation(s)
- Peng Chen
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, 266109, China
| | - Huimin Lv
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, 266109, China
| | - Mengmeng Du
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, 266109, China
| | - Weiyong Liu
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, 266109, China
| | - Chuanyan Che
- College of Animal Science and Technology, Anhui Science and Technology University, Fengyang, 233100, China
| | - Jinshan Zhao
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, 266109, China
| | - Huawei Liu
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, 266109, China.
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Alabi OM, Aworinde HO, Adebayo S, Akinwumi AO, Ayandiji A, Tatar A. Data analytics-based evaluation of blood indices and adaptation of medicated and non-medicated broiler chickens under humid tropical conditions. Transl Anim Sci 2024; 8:txae040. [PMID: 38590613 PMCID: PMC11000146 DOI: 10.1093/tas/txae040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 03/15/2024] [Indexed: 04/10/2024] Open
Abstract
The growth performance and blood indices of medicated and non-medicated broiler chickens have been the subject of this research coupled with a paucity of comparative information on what can actually happen to broiler chickens if not medicated when reared under humid tropical conditions. One hundred unsexed day-old broilers were randomly and equally allotted into two treatment groups of TM (medicated) and TN (non-medicated) in a completely randomized design each treatment with five replicates having ten birds each. The birds were reared on deep litter system for 56 d which was divided into two phases of 28 d each (starter and finisher), during which data were collected with respect to daily feed intake, final body weight, body weight gained (BWG), mortality rate while blood analysis was carried out on 28th and 56th d for starter and finisher phases, respectively. Non-medicated group served as control. Feed conversion ratio (FCR) and feed conversion efficiency (FCE), were later calculated. Data collected were subjected to analysis of variance statistically. There was no significant difference between the medicated and non-medicated broilers for daily feed intake, final body weight, and BWG and also for the blood parameters investigated at starter phase. However, at finisher phase, no significant difference was observed in the daily feed intake of Tm and Tn but there was significant (P < 0.05) difference in the final body weight, BWG, FCR, FCE, and mortality rate between the two groups. Birds on Tm attained higher weight significantly (P < 0.05) than those on TN. BWG, FCR, and FCE followed the same trend and also the mortality rate. White blood cells count of TN was higher significantly (P < 0.05) than TM while TM birds recorded higher packed cell volume, red blood counts, and hemoglobin concentration (Hb) significantly (P < 0.05) than TM birds. Effect of medication was much noticeable at finisher phase as it improved the growth rate though mortality rate was close to that of TN group. These results suggest that broilers can be produced free of medication with good feeding without loss of birds while the growth rate can be enhanced with the use of prebiotics and prebiotics.
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Affiliation(s)
- Olufemi M Alabi
- Agriculture Programme, College of Agriculture, Engineering and Science, Bowen University, Iwo, Nigeria
| | - Halleluyah O Aworinde
- Mechatronics Engineering Programme, College of Agriculture, Engineering and Science, Bowen University, Iwo, Nigeria
| | - Segun Adebayo
- Computer Science Programme, College of Communication and Computing Science, Bowen University, Iwo, Nigeria
| | - Akinwale O Akinwumi
- Mechatronics Engineering Programme, College of Agriculture, Engineering and Science, Bowen University, Iwo, Nigeria
| | - Adebamiji Ayandiji
- Agriculture Programme, College of Agriculture, Engineering and Science, Bowen University, Iwo, Nigeria
| | - Ahmad Tatar
- Agricultural Sciences and Natural Resources University of Khuzestan, Iran
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Shi P, Yan Z, Chen M, Li P, Wang D, Zhou J, Wang Z, Yang S, Zhang Z, Li C, Yin Y, Huang P. Effects of dietary supplementation with Radix Isatidis polysaccharide on egg quality, immune function, and intestinal health in hens. Res Vet Sci 2024; 166:105080. [PMID: 37952298 DOI: 10.1016/j.rvsc.2023.105080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/06/2023] [Accepted: 11/06/2023] [Indexed: 11/14/2023]
Abstract
This study aimed to investigate the effects of supplementing laying hen diets with Radix Isatidis Polysaccharide (RIPS) on egg quality, immune function, and intestinal health. The research was conducted using 288 Hyland Brown hens, which were randomly assigned to four dietary treatments: control (without RIPS), low dose (200 g/t), medium dose (500 g/t), and high dose (1000 g/t) of RIPS. Each dietary treatment was administered to eight replicates of nine hens for nine weeks. The results revealed that RIPS inclusion in diets significantly improved egg quality parameters such as egg shape index, yolk color, haugh unit, and protein height (P < 0.05). Additionally, RIPS supplementation enhanced immune function as evidenced by an alteration in serum biochemical parameters, an increase in the spleen index, and a decrease in the liver index. Further, an evaluation of intestinal health showed that RIPS fortified the intestinal barrier, thus increasing the population of beneficial intestinal bacteria and reducing the abundance of harmful ones. Such mechanisms promoted intestinal health, digestion, and nutrient absorption, ultimately leading to enhanced egg quality. In conclusion, supplementing laying hen diets with RIPS has been demonstrated to improve egg quality by boosting immunity and optimizing intestinal digestion and absorption.
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Affiliation(s)
- Panpan Shi
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China
| | - Zenghao Yan
- Hutchison Whampoa Guangzhou Baiyunshan Chinese Medicine Co., Ltd, Guangzhou 510515, China
| | - Miaofen Chen
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, Hunan, China
| | - Pingping Li
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China
| | - Deqin Wang
- Hutchison Whampoa Guangzhou Baiyunshan Chinese Medicine Co., Ltd, Guangzhou 510515, China
| | - Junjuan Zhou
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China
| | - Zhaojie Wang
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China
| | - Shihao Yang
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China
| | - Zhikun Zhang
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China
| | - Chuyuan Li
- Hutchison Whampoa Guangzhou Baiyunshan Chinese Medicine Co., Ltd, Guangzhou 510515, China.
| | - Yulong Yin
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China.
| | - Peng Huang
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China.
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Goo D, Gadde UD, Kim WK, Gay CG, Porta EW, Jones SW, Walker S, Lillehoj HS. Hyperimmune egg yolk antibodies developed against Clostridium perfringens antigens protect against necrotic enteritis. Poult Sci 2023; 102:102841. [PMID: 37480657 PMCID: PMC10393821 DOI: 10.1016/j.psj.2023.102841] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 05/30/2023] [Accepted: 06/01/2023] [Indexed: 07/24/2023] Open
Abstract
Necrotic enteritis (NE) is a widespread infectious disease caused by Clostridium perfringens that inflicts major economic losses on the global poultry industry. Due to regulations on antibiotic use in poultry production, there is an urgent need for alternative strategies to mitigate the negative effects of NE. This paper presents a passive immunization technology that utilizes hyperimmune egg yolk immunoglobulin Y (IgY) specific to the major immunodominant antigens of C. perfringens. Egg yolk IgYs were generated by immunizing hens with 4 different recombinant C. perfringens antigens, and their protective effects against NE were evaluated in commercial broilers. Six different spray-dried egg powders were produced using recombinant C. perfringens antigens: α-toxin, NE B-like toxin (NetB; EB), elongation factor-Tu (ET), pyruvate:ferredoxin oxidoreductase, a mixture of 4 antigens (EM-1), and a nonimmunized control (EC). The challenged groups were either provided with different egg powders at a 1% level or no egg powders (EN). The NE challenge model based on Eimeria maxima and C. perfringens dual infection was used. In Experiments 1 and 2, the EB and ET groups exhibited increased body weight gain (BWG; P < 0.01), decreased NE lesion scores (P < 0.001), and reduced serum NetB levels (P < 0.01) compared to the EN and EC groups. IgY against NetB significantly reduced Leghorn male hepatocellular cytotoxicity in an in vitro test (P < 0.01). In Experiment 3, the protective effect of the IgYs mixture (EM-2) against C. perfringens antigens (NetB and EFTu) and Eimeria antigens (elongation factor-1-alpha: EF1α and Eimeria profilin: 3-1E) was tested. The EM-2 group showed similar body weight, BWG, and feed intake from d 7 to 22 compared to the NC group (P < 0.05). On d 20, the EM-2 group showed comparable intestinal permeability, NE lesion scores, and jejunal NetB and collagen adhesion protein levels to the NC group (P < 0.05). In conclusion, dietary mixture containing antibodies to NetB and EFTu provides protection against experimental NE in chickens through passive immunization.
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Affiliation(s)
- D Goo
- Department of Poultry Science, University of Georgia, Athens, GA, USA
| | - U D Gadde
- Animal Bioscience and Biotechnology Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, USDA, Beltsville, MD, USA
| | - W K Kim
- Department of Poultry Science, University of Georgia, Athens, GA, USA
| | - C G Gay
- Office of National Program-Animal Health, Agricultural Research Service, USDA, Beltsville, MD, USA
| | - E W Porta
- Arkion Life Sciences, New Castle, DE, USA
| | - S W Jones
- Arkion Life Sciences, New Castle, DE, USA
| | - S Walker
- Arkion Life Sciences, New Castle, DE, USA
| | - H S Lillehoj
- Animal Bioscience and Biotechnology Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, USDA, Beltsville, MD, USA.
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Geevarghese AV, Kasmani FB, Dolatyabi S. Curcumin and curcumin nanoparticles counteract the biological and managemental stressors in poultry production: An updated review. Res Vet Sci 2023; 162:104958. [PMID: 37517298 DOI: 10.1016/j.rvsc.2023.104958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/07/2023] [Accepted: 07/14/2023] [Indexed: 08/01/2023]
Abstract
Antibiotics have the potential to have both direct and indirect detrimental impacts on animal and human health. For instance, antibiotic residues and pathogenic resistance against the drug are very common in poultry because of antibiotics used in their feed. It is necessary to use natural feed additives as effective alternatives instead of synthetic antibiotics. Curcumin, a polyphenol compound one of the natural compounds from the rhizomes of turmeric (Curcuma spp.) and has been suggested to have several therapeutic benefits in the treatment of human diseases. Curcumin exhibited some positive responses such as growth promoter, antioxidant, antibacterial, antiviral, anticoccidial, anti-stress, and immune modulator activities. Curcumin played a pivotal role in regulating the structure of the intestinal microbiome for health promotion and the treatment of intestinal dysbiosis. It is suggested that curcumin alone or a combination with other feed additives could be a dietary strategy to improve poultry health and productivity.
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Affiliation(s)
- Abin V Geevarghese
- Department of Pharmacology, PSG College of Pharmacy, Coimbatore, Tamil Nadu, India.
| | | | - Sara Dolatyabi
- Center for Food Animal Health, Department of Animal Sciences, The Ohio State University, Ohio, USA
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Huaringa D, Zea O, Huapaya S, Jimenez L, Salazar M, Molina D, Espinoza S, Vílchez-Perales C. Evaluation of Three Vaccination Schemes Against Clostridium perfringens Alpha Toxin and Their Effects on the Performance, Level of Intestinal Lesions, and Serum Antibody Titers in Broilers. Avian Dis 2023; 67:170-176. [PMID: 37556296 DOI: 10.1637/aviandiseases-d-23-00001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 05/04/2023] [Indexed: 08/11/2023]
Abstract
The objective of the trial was to evaluate three vaccination schemes against Clostridium perfringens (CP) alpha-toxoid through drinking water to determine if they can protect against clinical signs of necrotic enteritis and coccidiosis in broiler chickens. Three hundred 1-day-old Cobb 500 male chicks were used in 4 treatments with 10 repetitions. Each group received 1 of the following treatments over the course of 29 days: T1, no vaccination; T2, vaccination on Day 1; T3, vaccination on Day 7; and T4, vaccination on Days 7 and 17. The birds were vaccinated with inactivated CP toxoid type A, administered via drinking water. During the first 14 days, a high-protein diet (27%) consisting of corn, soy, and fish meal was fed. On Day 14 Eimeria acervulina (EA), Eimeria maxima (EMx), Eimeria tenella (ET), Eimeria necatrix, and Eimeria brunetti were used in a coccidial challenge. The field isolate CP type A was then inoculated on Days 18, 19, and 20. Ten birds were slaughtered by treatment to obtain serology samples for antibody titers and intestine samples for CP and Eimeria lesion score and gut integrity indicators. Productive performance was assessed using complete randomized design and compared statistically using the Tukey test, whereas intestinal integrity variables and antibodies against CP alpha toxin were assessed using a Kruskal-Wallis nonparametric method. The results revealed that the treatments had an effect on productive performance (P < 0.05); T3 had better body weight and weight gain than T1. In terms of lesion score at Day 21, T4 had a lower lesion score by EA, EMx, and ET than T1. Cell desquamation in T2 was lower than in T4, and excess mucus (EM) in T1 was the worst in gut integrity indicators at Day 21. On the other hand, T2 had more EM than T3 and T4 at Day 25. In the measurement of antibodies, no statistical differences (P > 0.05) were found. These findings indicate that vaccination on Day 7 (T3) outperformed double vaccination on Days 7 and 17 (T4) and single on Day 1 (T2), in terms of productive performance, gut integrity, and lesion scores; and on the last day of the experiment T3 had the best performance in immunology response.
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Affiliation(s)
- Daniel Huaringa
- Department of Nutrition, Faculty of Animal Science, Universidad Nacional Agraria La Molina, Lima, Perú 15024,
| | - Otto Zea
- Department of Nutrition, Faculty of Animal Science, Universidad Nacional Agraria La Molina, Lima, Perú 15024
| | - Sidney Huapaya
- Department of Nutrition, Faculty of Animal Science, Universidad Nacional Agraria La Molina, Lima, Perú 15024
| | - Liliana Jimenez
- Department of Nutrition, Faculty of Animal Science, Universidad Nacional Agraria La Molina, Lima, Perú 15024
| | - Miguel Salazar
- Department of Nutrition, Faculty of Animal Science, Universidad Nacional Agraria La Molina, Lima, Perú 15024
| | - Daniel Molina
- Research, Development and Innovation Area, Ilender Perú S.A., Lima, Perú 15036
| | - Sandra Espinoza
- Research, Development and Innovation Area, Ilender Perú S.A., Lima, Perú 15036
| | - Carlos Vílchez-Perales
- Department of Nutrition, Faculty of Animal Science, Universidad Nacional Agraria La Molina, Lima, Perú 15024
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Paulsen TR, Jensen KH, van Harn J, Veldkamp T. Safety assessment of the functional feed additive phenylcapsaicin in a commercial broiler diet. TOXICOLOGY RESEARCH AND APPLICATION 2023. [DOI: 10.1177/23978473231154925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023] Open
Abstract
Introduction: Intestinal colonisation of Salmonella is a major concern in the poultry industry, and a low dose of the high-purity synthetic capsaicin analogue phenylcapsaicin (PheCap) has the potential to be a phytobiotic alternative to antibiotics in reducing floor Salmonella in commercial broiler chicken houses. In this study we present the first safety assessment of PheCap at doses relevant for the poultry industry. Methods: In a completely randomized block design, Ross 308 male broilers were offered feed containing 0, 10, 15, or 150 mg PheCap/kg. Growth rates, mortality, haematology, clinical chemistry, foot pad lesions, litter quality and gross pathological examination of organs and tissues were evaluated for signs of toxicity over a two-phase, 35-day growth period. Results: No differences in feed intake and broiler growth were found, with broilers in the control group having the highest mortality. There was a statistically significant increase in the European Production Efficiency Factor (EPEF) for the 10 (p = 0.02) and 15 mg PheCap/kg feed (p = 0.003) treatment doses. No dose dependent adverse effects were found for any of the treatment doses. The No Observed Adverse Effect Level (NOAEL) of PheCap is probably higher than that of the highest weekly averaged daily intake of 36.3 mg/kg BW/day observed in the present study. Conclusions: The inclusion of PheCap in broiler feed at doses relevant for the commercial poultry industry is assumed not have any negative effects on broiler health.
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Affiliation(s)
| | - Knut Helge Jensen
- Department of Biological Sciences, University of Bergen, Bergen, Norway
| | - Jan van Harn
- Wageningen Livestock Research, Wageningen, The Netherlands
| | - Teun Veldkamp
- Wageningen Livestock Research, Wageningen, The Netherlands
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Wang F, Zou P, Xu S, Wang Q, Zhou Y, Li X, Tang L, Wang B, Jin Q, Yu D, Li W. Dietary supplementation of Macleaya cordata extract and Bacillus in combination improve laying performance by regulating reproductive hormones, intestinal microbiota and barrier function of laying hens. J Anim Sci Biotechnol 2022; 13:118. [PMID: 36224643 PMCID: PMC9559840 DOI: 10.1186/s40104-022-00766-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 08/03/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND This study aimed to investigate whether the combination of Macleaya cordata extract (MCE) and Bacillus could improve the laying performance and health of laying hens better. METHODS A total of 360 29-week-old Jingbai laying hens were randomly divided into 4 treatments: control group (basal diet), MCE group (basal diet + MCE), Probiotics Bacillus Compound (PBC) group (basal diet + compound Bacillus), MCE + PBC group (basal diet + MCE + compound Bacillus). The feeding experiment lasted for 42 d. RESULTS The results showed that the laying rate and the average daily egg mass in the MCE + PBC group were significantly higher than those in the control group (P < 0.05) and better than the MCE and PBC group. Combination of MCE and Bacillus significantly increased the content of follicle-stimulating hormone (FSH) in the serum and up-regulated the expression of related hormone receptor gene (estrogen receptor-β, FSHR and luteinizing hormone/choriogonadotropin receptor) in the ovary of laying hens (P < 0.05). In the MCE + PBC group, the mRNA expressions of zonula occluden-1, Occludin and mucin-2 in jejunum was increased and the intestinal epithelial barrier detected by transmission electron microscopy was enhanced compared with the control group (P < 0.05). In addition, compared with the control group, combination of MCE and Bacillus significantly increased the total antioxidant capacity and catalase activity (P < 0.05), and down-regulated the mRNA expressions of inflammation-related genes (interleukin-1β and tumor necrosis factor-α) as well as apoptosis-related genes (Caspase 3, Caspase 8 and P53) (P < 0.05). The concentration of acetic acid and butyric acid in the cecum content of laying hens in the MCE + PBC group was significantly increased compared with the control group (P < 0.05). CONCLUSIONS Collectively, dietary supplementation of 600 μg/kg MCE and 5 × 108 CFU/kg compound Bacillus can improve laying performance by improving microbiota to enhance antioxidant capacity and intestinal barrier, regulate reproductive hormones and the concentration of cecal short-chain fatty acids of laying hens, and the combined effect of MCE and Bacillus is better than that of single supplementation.
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Affiliation(s)
- Fei Wang
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry, National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Institute of Animal Nutrition and Feed Sciences, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Peng Zou
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry, National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Institute of Animal Nutrition and Feed Sciences, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Shujie Xu
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry, National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Institute of Animal Nutrition and Feed Sciences, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China.,Hainan Institute, Zhejiang University, Yazhou Bay Sci-Tech City, Yongyou Industry Park, Sanya, 572000, China
| | - Qi Wang
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry, National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Institute of Animal Nutrition and Feed Sciences, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Yuanhao Zhou
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry, National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Institute of Animal Nutrition and Feed Sciences, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Xiang Li
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry, National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Institute of Animal Nutrition and Feed Sciences, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Li Tang
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry, National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Institute of Animal Nutrition and Feed Sciences, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Baikui Wang
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry, National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Institute of Animal Nutrition and Feed Sciences, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Qian Jin
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry, National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Institute of Animal Nutrition and Feed Sciences, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China.,Hainan Institute, Zhejiang University, Yazhou Bay Sci-Tech City, Yongyou Industry Park, Sanya, 572000, China
| | - Dongyou Yu
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry, National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Institute of Animal Nutrition and Feed Sciences, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China. .,Hainan Institute, Zhejiang University, Yazhou Bay Sci-Tech City, Yongyou Industry Park, Sanya, 572000, China.
| | - Weifen Li
- Key Laboratory of Animal Molecular Nutrition of Education of Ministry, National Engineering Laboratory of Biological Feed Safety and Pollution Prevention and Control, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Institute of Animal Nutrition and Feed Sciences, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, China. .,Hainan Institute, Zhejiang University, Yazhou Bay Sci-Tech City, Yongyou Industry Park, Sanya, 572000, China.
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11
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Pham VH, Abbas W, Huang J, Guo F, Zhang K, Kong L, Zhen W, Guo Y, Wang Z. Dietary coated essential oil and organic acid mixture supplementation improves health of broilers infected with avian pathogenic Escherichia coli. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2022; 12:245-262. [PMID: 36712401 PMCID: PMC9868345 DOI: 10.1016/j.aninu.2022.09.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 09/26/2022] [Accepted: 09/28/2022] [Indexed: 01/19/2023]
Abstract
Colibacillosis caused by avian pathogenic Escherichia coli (APEC) is a very prevalent disease in poultry farms in China. The exploration of effective non-antibiotic substances is of great significance for the control of APEC infections. This experiment evaluated the efficacy of coated essential oil and organic acid (EOA) supplementation to prevent E. coli O78 infection in broiler chickens. A total of 288 one-day-old male broiler chicks were randomly distributed into 4 groups with 6 replicates per group. Chickens were fed a diet either supplemented with EOA (500 mg/kg feed) or not, and either uninfected or infected with E. coli O78 intratracheally. Results showed that E. coli O78 infection reduced body weight gain, increased mortality and the ratio of feed to gain along with cecal and liver E. coli load, damaged gut mucosa, induced local and systemic inflammation, and altered cecal microbial composition, diversity and function (P < 0.05). Supplemental EOA improved feed conversion efficiency, lowered gross lesion scores and cecal E. coli population, enhanced intestinal goblet cells and serum IgG concentration, and tended to decrease serum IL-12 production (P < 0.05). Essential oil and organic acid addition downregulated IFN-γ mRNA, tended to decrease mucin-2 mRNA levels while upregulating IL-10 mRNA, and tended to increase ZO-1 gene expression in the jejuna of infected birds at 7 d after E. coli O78 challenge (P < 0.05). The 16S rRNA gene sequencing indicated that both EOA addition and E. coli O78 challenge altered the diversity and composition of the cecal microbiota community. Furthermore, infected birds fed EOA showed decreased Bacteroidetes and genus Lactobacillus abundance compared with the infected control. LEfSe analysis showed that Firmicutes, Ruminococcaceae, Clostridiales, Clostridia, Lactobacillus, Lactobacilaceae, and cc-115 were enriched in the non-infected but EOA-treated group (P < 0.05). Collectively, dietary EOA supplementation could mildly alleviate E. coli-induced gut injury and inflammation.
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Affiliation(s)
- Van Hieu Pham
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China,Faculty of Animal Science and Veterinary Medicine, Thai Nguyen University Agriculture and Forestry, Thai Nguyen, Viet Nam
| | - Waseem Abbas
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Jinyu Huang
- Menon Animal Nutrition Technology Co. Ltd., Shanghai, 201807, China
| | - Fangshen Guo
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Kaichen Zhang
- Tengzhou Heyi Food Co. Ltd., Zaozhuang, 277000, China
| | - Linhua Kong
- Tengzhou Heyi Food Co. Ltd., Zaozhuang, 277000, China
| | - Wenrui Zhen
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Yuming Guo
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Zhong Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China,Corresponding author.
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12
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Hotea I, Dragomirescu M, Berbecea A, Radulov I. Phytochemicals as Alternatives to Antibiotics in Animal Production. Vet Med Sci 2022. [DOI: 10.5772/intechopen.106978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Despite the continuous improvement of feed diets and recipes, animal health problems persist. For their treatment, antibiotics and chemotherapy have been shown to have side effects hard to control. The antibiotic residues in animal products may endanger human health. Since the antibiotics were restricted in animals’ diets, which were previously used to keep under control digestive and respiratory pathologies, as well as allergies, so the researchers began to search for natural alternatives. Thus, it was developed the concept of phytoadditives, and these natural plant extracts are gaining ground in animal farming. Since then, more and more animal breeders and farms are willing to use various types of phytoadditives. This chapter aims to present the most widely used phytochemicals in animal nutrition, their effects on animal production and health, and to make some recommendations on the use of phytochemicals in farm animals’ diets.
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13
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Moraes DCA, Nagi JG, Fritzen J, Vitagliano LA, Oliveira ER, Oba A, Silva CA. Effect of capsaicin on the feed intake and immunoglobin concentration of sows, and performance of piglets. Trop Anim Health Prod 2022; 54:241. [PMID: 35896831 DOI: 10.1007/s11250-022-03233-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 07/13/2022] [Indexed: 11/27/2022]
Abstract
Capsaicin is a recognized alkaloid that can be used as a flavoring and palatability agent. These effects can increase feed intake in lactating sows during farrowing, especially under thermal stress conditions, and provide antioxidant and immunostimulant activities. The objective of this work was to find out the effects of a capsaicin-based product on the feed intake of sows, immunomodulation, and repercussions on litter performance and the control of piglet diarrhea conditions. A total of 132 pregnant sows and lactating sows and their respective litters were divided into 66 sows each and submitted to one of two possible treatments: a capsaicin-free diet (control group) or capsaicin per meal/day. Capsaicin was mixed with gestation and lactation diets in the proportion of 98.6 g of feed and 1.4 g of capsaicin/kg feed, with the dose administered "on top" of 100 g per treatment day on the first feeding. The sows were treated between 90 days of gestation and 21 days of lactation. Backfat thickness, feed intake during farrowing, colostrum production, IgG colostrum concentration, sow reproductive performance, piglet performance, and diarrhea were evaluated. Compared to the sows in the control group, those that received capsaicin had higher feed intake (+ 0.69 kg/day during lactation, P = 0.008), higher levels of IgG in colostrum (185.75 versus 153.80 mg/mL, P = 0.04), an 11.2% higher litter weight gain, with individual piglet weight gains greater than 5.24% (P = 0.045), and an effective reduction in the frequency of piglet diarrhea on the 10th and 17th days of age (P = 0.013 and P = 0.001, respectively). Capsaicin is an additive with potential effects on the sow's performance, with positive influences on the health and growth of suckling piglets.
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Affiliation(s)
- D C A Moraes
- Department of Animal Science, Universidade Estadual de Londrina, UEL, Londrina, PR, 86057-970, Brazil.
| | - J G Nagi
- Department of Animal Science, Universidade Estadual de Londrina, UEL, Londrina, PR, 86057-970, Brazil
| | - J Fritzen
- Animal Virology Laboratory, Universidade Estadual de Londrina, UEL, Londrina, PR, 86057-970, Brazil
| | | | | | - A Oba
- Department of Animal Science, Universidade Estadual de Londrina, UEL, Londrina, PR, 86057-970, Brazil
| | - C A Silva
- Department of Animal Science, Universidade Estadual de Londrina, UEL, Londrina, PR, 86057-970, Brazil
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14
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Cui Y, Yu S, Gao W, Zhao Z, Wu J, Xiao M, An L. Dietary curcumin supplementation regulates the lipid metabolism in laying hens. ITALIAN JOURNAL OF ANIMAL SCIENCE 2022. [DOI: 10.1080/1828051x.2022.2071774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Yanfeng Cui
- Department of Animal Science, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong Province, PR China
| | - Sumeng Yu
- Department of Animal Science, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong Province, PR China
| | - Wen Gao
- Department of Animal Science, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong Province, PR China
| | - Zhuangzhi Zhao
- Department of Animal Science, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong Province, PR China
| | - Jiang Wu
- Department of Animal Science, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong Province, PR China
| | - Mei Xiao
- Department of Animal Science, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong Province, PR China
| | - Lilong An
- Department of Animal Science, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong Province, PR China
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15
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Ibrahim D, Eldemery F, Metwally AS, Abd-Allah EM, Mohamed DT, Ismail TA, Hamed TA, Al Sadik GM, Neamat-Allah ANF, Abd El-Hamid MI. Dietary Eugenol Nanoemulsion Potentiated Performance of Broiler Chickens: Orchestration of Digestive Enzymes, Intestinal Barrier Functions and Cytokines Related Gene Expression With a Consequence of Attenuating the Severity of E. coli O78 Infection. Front Vet Sci 2022; 9:847580. [PMID: 35812892 PMCID: PMC9260043 DOI: 10.3389/fvets.2022.847580] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Accepted: 04/05/2022] [Indexed: 12/24/2022] Open
Abstract
Recently, the use of essential oils (EOs) or their bioactive compounds encapsulated by nanoparticles as alternative supplements for in-feed antimicrobials is gaining attention, especially in organic poultry production. Focusing on eugenol, its incorporation into the nanoformulation is a novel strategy to improve its stability and bioavailability and thus augment its growth-boosting and antimicrobial activities. Therefore, we explored eugenol nanoemulsion activities in modulating growth, digestive and gut barrier functions, immunity, cecal microbiota, and broilers response to avian pathogenic E. coli challenge (APEC) O78. A total of 1,000 one-day-old broiler chicks were allocated into five groups; negative control (NC, fed basal diet), positive control (PC), and 100, 250, and 400 mg/kg eugenol nanoemulsion supplemented groups. All groups except NC were challenged with APEC O78 at 14 days of age. The results showed that birds fed eugenol nanoemulsion displayed higher BWG, FI, and survivability and most improved FCR over the whole rearing period. Birds fed 400 mg/kg of eugenol nanoemulsion sustained a higher growth rate (24% vs. PC) after infection. Likely, the expression of digestive enzymes' genes (AMY2A, CCK, CELA1, and PNLIP) was more prominently upregulated and unaffected by APEC O78 challenge in the group fed eugenol nanoemulsion at the level of 400 mg/kg. Enhanced gut barrier integrity was sustained post-challenge in the group supplemented with higher levels of eugenol nanoemulsion as evidenced by the overexpression of cathelicidins-2, β-defensin-1, MUC-2, JAM-2, occludin, CLDN-1, and FABP-2 genes. A distinct modulatory effect of dietary eugenol nanoemulsion was observed on cytokine genes (IL-1β, TNF-α, IL-6, IL-8, and IL-10) expression with a prominent reduction in the excessive inflammatory reactions post-challenge. Supplementing eugenol nanoemulsion increased the relative cecal abundance of Lactobacillus species and reduced Enterobacteriaceae and Bacteriods counts. Notably, a prominent reduction in APEC O78 loads with downregulation of papC, iroN, iutA, and iss virulence genes and detrimental modifications in E. coli morphological features were noticed in the 400 mg/kg eugenol nanoemulsion group at the 3rd-week post-challenge. Collectively, we recommend the use of eugenol nanoemulsion as a prospective targeted delivery approach for achieving maximum broilers growth and protection against APEC O78 infection.
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Affiliation(s)
- Doaa Ibrahim
- Department of Nutrition and Clinical Nutrition, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
- *Correspondence: Doaa Ibrahim
| | - Fatma Eldemery
- Department of Hygiene and Zoonoses, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt
| | - Aya Sh. Metwally
- Department of Pharmacology, Faculty of Veterinary Medicine, Aswan University, Aswan, Egypt
| | - Ehab M. Abd-Allah
- Veterinary Educational Hospital, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Dalia T. Mohamed
- Department of Pathology and Clinical Pathology, Zagazig Branch, Agriculture Research Center, Animal Health Research Institute, Zagazig, Egypt
| | - Tamer Ahmed Ismail
- Department of Clinical Laboratory Sciences, Turabah University College, Taif University, Taif, Saudi Arabia
| | - Thoria A. Hamed
- Department of Biochemistry, Zagazig Branch, Agriculture Research Center, Animal Health Research Institute, Zagazig, Egypt
| | - Gehan M. Al Sadik
- Department of Bacteriology, Zagazig Branch, Agriculture Research Center, Animal Health Research Institute, Zagazig, Egypt
| | - Ahmed N. F. Neamat-Allah
- Department of Clinical Pathology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Marwa I. Abd El-Hamid
- Department of Microbiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
- Marwa I. Abd El-Hamid
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16
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He W, Goes EC, Wakaruk J, Barreda DR, Korver DR. A Poultry Subclinical Necrotic Enteritis Disease Model Based on Natural Clostridium perfringens Uptake. Front Physiol 2022; 13:788592. [PMID: 35795645 PMCID: PMC9251903 DOI: 10.3389/fphys.2022.788592] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Accepted: 04/29/2022] [Indexed: 11/13/2022] Open
Abstract
Necrotic enteritis (NE) in poultry is an opportunistic infection caused by Clostridium perfringens. Well-known as a multifactorial disease, NE development is under the influence of a wide range of environmental risk factors that promote the proliferation of pathogenic C. perfringens at the expense of nonpathogenic strains. Current in vivo NE challenge models typically incorporate pre-exposure to disease risk factors, in combination with exogenous C. perfringens inoculation. Our goal was to enhance current models using a natural uptake of C. perfringens from the barn environment to produce a subclinical infection. We incorporated access to litter, coccidial exposure (either 10× or 15× of the manufacturer-recommended Coccivac B52 Eimeria vaccine challenge; provided unspecified doses of E. acervulina, E. mivati, E. tenella, and two strains of E. maxima), feed composition, and feed withdrawal stress, and achieved the commonly observed NE infection peak at 3 weeks post-hatch. NE severity was evaluated based on gut lesion pathology, clinical signs, and mortality rate. Under cage-reared conditions, 15× coccidial vaccine-challenged birds showed overall NE lesion prevalence that was 8-fold higher than 10× coccidial vaccine-challenged birds. NE-associated mortality was observed only in a floor-reared flock after a 15× coccidial vaccine challenge.
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Affiliation(s)
- Wanwei He
- Department of Biological Sciences, University of Alberta, Edmonton, AB, Canada
| | - Emanuele C. Goes
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - Jeremy Wakaruk
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - Daniel R. Barreda
- Department of Biological Sciences, University of Alberta, Edmonton, AB, Canada
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
- *Correspondence: Daniel R. Barreda, ; Douglas R. Korver,
| | - Douglas R. Korver
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
- *Correspondence: Daniel R. Barreda, ; Douglas R. Korver,
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17
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Gazwi HSS, Mahmoud ME, Toson EMA. Analysis of the phytochemicals of Coriandrum sativum and Cichorium intybus aqueous extracts and their biological effects on broiler chickens. Sci Rep 2022; 12:6399. [PMID: 35430609 PMCID: PMC9013364 DOI: 10.1038/s41598-022-10329-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 04/05/2022] [Indexed: 12/30/2022] Open
Abstract
Spices and herbs can be used as feed additives and viable alternatives to antibiotics in chicken production. This study analyzed the phytochemicals, minerals, and antioxidant activity of aqueous extracts from Coriandrum sativum seeds and Cichorium intybus roots. The effects of different concentrations of C. sativum and C. intybus extracts on blood parameters, growth and carcass traits, biochemical parameters, and antioxidant activity of broiler chicks were also examined. The results showed that C. sativum aqueous extract has relatively higher contents of total flavonoids and total phenolic acids than C. intybus aqueous extract. Both extracts contain elevated mineral elements, especially iron, potassium, and sodium. Therefore, dietary supplementation of C. sativum seed and C. intybus root extracts could enhance broiler chicken growth performance, carcass characteristics, liver function, lipid profile, and antioxidant status. These extracts could be utilized as natural feed additives and growth promoters for broiler chickens.
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Affiliation(s)
- Hanaa S S Gazwi
- Department of Agricultural Chemistry, Faculty of Agriculture, Minia University, El-Minia, Egypt.
| | - Magda E Mahmoud
- Department of Agricultural Chemistry, Faculty of Agriculture, Minia University, El-Minia, Egypt
| | - Enas M A Toson
- Department of Animal and Poultry Production, Faculty of Agriculture, Minia University, El-Minia, Egypt
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18
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Prevalence and Antimicrobial Susceptibility of Campylobacter Species with Particular Focus on the Growth Promoting, Immunostimulant and Anti-Campylobacter jejuni Activities of Eugenol and Trans-Cinnamaldehyde Mixture in Broiler Chickens. Animals (Basel) 2022; 12:ani12070905. [PMID: 35405892 PMCID: PMC8996860 DOI: 10.3390/ani12070905] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 03/24/2022] [Accepted: 03/30/2022] [Indexed: 02/04/2023] Open
Abstract
Simple Summary Campylobacter species are the leading cause of foodborne bacterial enteritis worldwide. Recently, extensively drug-resistant (XDR) and multi-drug-resistant (MDR) Campylobacter spp. have caused several global crises. Therefore, the present work aims to detect the prevalence and antimicrobial resistance patterns of Campylobacter spp. from various chicken sources in Egypt, and to investigate the efficacy of a mixture of eugenol and trans-cinnamaldehyde on the performance and immunity of challenged broilers and also to assess their effects on C. jejuni load and virulence gene expression in an in vivo model. Our results showed a high prevalence of campylobacter isolates (67.3%). Of note, 25.7 and 74.3% of campylobacter isolates were XDR and MDR, respectively. Interestingly, a mixture of eugenol and trans-cinnamaldehyde had significant enhancing and antimicrobial effects through improving the growth-performance variables, minimizing the C. jejuni fecal loads, and decreasing the C. jejuni virulence genes (flaA, virB11, and wlaN) expressions in broilers challenged with C. jejuni. Moreover, the mixture of eugenol and the trans-cinnamaldehyde had immunostimulant and anti-inflammatory activities. In conclusion, our findings suggest that the utilization of the mixture of eugenol and trans-cinnamaldehyde has a growth-promoting role and can be considered as a better replacement of the antimicrobial agents for the control and treatment of campylobacter infection in broiler chickens. Abstract Campylobacter species (spp.) are one of the most important causes of human bacterial gastroenteritis in foods of animal origin. Recently, with the spread of multi-drug-resistant (MDR) and extensively drug-resistant (XDR) Campylobacter spp., natural alternative therapeutic methods are urgently required. Phytogenic active principles have gained considerable attention due to their proficiency to enhance gut health and, thereby, performance of broiler chickens. Thus, the current study aims to determine the prevalence and antimicrobial resistance of Campylobacter spp. of different chicken sources in Sharkia Governorate, Egypt, and to assess the growth-promoting, immunostimulant and antimicrobial effects of a mixture of eugenol and trans-cinnamaldehyde in an in vivo approach. A total of 101 (67.3%) campylobacter isolates was identified, according to both phenotypic and genotypic techniques. Moreover, all of the campylobacter isolates were resistant to erythromycin, trimethoprim/sulfamethoxazole, and ampicillin (100% each). Of note, a dietary supplementation of the mixture of eugenol and trans-cinnamaldehyde led to a significant improvement of the feed conversion ratio and body weight gain and a decrease in the cecal C. jejuni loads in the broilers challenged with XDR C. jejuni. Additionally, eugenol and the trans-cinnamaldehyde mixture had protective activities via the down-regulation of XDR C. jejuni (flaA, virB11 and wlaN) virulence genes and proinflammatory cytokines (TNF-α, IL-2, IL-6, and IL-8), and the up-regulation of anti-inflammatory cytokine IL-10. Thus, we recommend the usage of a mixture of eugenol and trans-cinnamaldehyde as an alternative to antimicrobials for the control and treatment of campylobacter infections.
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Abd El-Hack ME, El-Saadony MT, Elbestawy AR, El-Shall NA, Saad AM, Salem HM, El-Tahan AM, Khafaga AF, Taha AE, AbuQamar SF, El-Tarabily KA. Necrotic enteritis in broiler chickens: disease characteristics and prevention using organic antibiotic alternatives – a comprehensive review. Poult Sci 2022; 101:101590. [PMID: 34953377 PMCID: PMC8715378 DOI: 10.1016/j.psj.2021.101590] [Citation(s) in RCA: 60] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/26/2021] [Accepted: 11/02/2021] [Indexed: 02/07/2023] Open
Abstract
In line with the substantial increase in the broiler industry worldwide, Clostridium perfringens-induced necrotic enteritis (NE) became a continuous challenge leading to high economic losses, especially after banning antimicrobial growth promoters in feeds by many countries. The disease is distributed worldwide in either clinical or subclinical form, causing a reduction in body weight or body weight gain and the feed conversion ratio, impairing the European Broiler Index or European Production Efficiency Factor. There are several predisposing factors in the development of NE. Clinical signs varied from inapparent signs in case of subclinical infection (clostridiosis) to obvious enteric signs (morbidity), followed by an increase in mortality level (clostridiosis or clinical infection). Clinical and laboratory diagnoses are based on case history, clinical signs, gross and histopathological lesions, pathogenic agent identification, serological testing, and molecular identification. Drinking water treatment is the most common route for the administration of several antibiotics, such as penicillin, bacitracin, and lincomycin. Strict hygienic management practices in the farm, careful selection of feed ingredients for ration formulation, and use of alternative antibiotic feed additives are all important in maintaining broiler efficiency and help increase the profitability of broiler production. The current review highlights NE caused by C. perfringens and explains the advances in the understanding of C. perfringens virulence factors involved in the pathogenesis of NE with special emphasis on the use of available antibiotic alternatives such as herbal extracts and essential oils as well as vaccines for the control and prevention of NE in broiler chickens.
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20
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Phytogenic Feed Additives in Poultry: Achievements, Prospective and Challenges. Animals (Basel) 2021; 11:ani11123471. [PMID: 34944248 PMCID: PMC8698016 DOI: 10.3390/ani11123471] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 11/25/2021] [Accepted: 11/30/2021] [Indexed: 12/12/2022] Open
Abstract
Simple Summary Plant secondary metabolites and essential oils also known as phytogenics are biologically active compounds that have recently attracted increased interest as feed additives in poultry production, due to their ability to promote feed efficiency by enhancing the production of digestive secretions and nutrient absorption, reduce pathogenic load in the gut, exert antioxidant properties and decrease the microbial burden on the animal’s immune status. However, the mechanisms are far from being fully elucidated. Better understanding the interaction of phytogenics with gastrointestinal function and health as well as other feed ingredients/additives is crucial to design potentially cost-effective blends. Abstract Phytogenic feed additives have been largely tested in poultry production with the aim to identify their effects on the gastrointestinal function and health, and their implications on the birds’ systemic health and welfare, the production efficiency of flocks, food safety, and environmental impact. These feed additives originating from plants, and consisting of herbs, spices, fruit, and other plant parts, include many different bioactive ingredients. Reviewing published documents about the supplementation of phytogenic feed additives reveals contradictory results regarding their effectiveness in poultry production. This indicates that more effort is still needed to determine the appropriate inclusion levels and fully elucidate their mode of actions. In this frame, this review aimed to sum up the current trends in the use of phytogenic feed additives in poultry with a special focus on their interaction with gut ecosystem, gut function, in vivo oxidative status and immune system as well as other feed additives, especially organic acids.
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21
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Salem HM, Ismael E, Shaalan M. Evaluation of the Effects of Silver Nanoparticles Against Experimentally Induced Necrotic Enteritis in Broiler Chickens. Int J Nanomedicine 2021; 16:6783-6796. [PMID: 34675507 PMCID: PMC8502061 DOI: 10.2147/ijn.s319708] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 09/22/2021] [Indexed: 01/27/2023] Open
Abstract
Background Clostridium perfringens-associated necrotic enteritis (NE) is a serious problem affecting broiler production. A major global challenge is to reduce the use of antibiotics in poultry industry due to their negative impacts on public health. One alternative is to use nanoparticles (NPs) to overcome bacterial resistance to antibiotics. Silver nanoparticles (Ag NPs) showed strong antimicrobial activity. Methods A total of 120 Cobb broiler chicks (1-day old) were obtained for this study and were divided into 4 equal groups at age of 14 days (30 birds each); each group was subdivided into 3 equal replicates (10 birds each). The groups were designated as follows: G1, infected; G2, infected and treated with Ag NPs; G3, treated with Ag NPs; and G4, negative control. Birds were infected with 4×108 colony forming unit (CFU)/mL/bird C. perfringens type A for 2 successive days. In the treated groups, Ag NPs (mean diameter 15 nm; total dose 150 µg/bird) were administered via crop gavage. During the observation period (5 weeks), bird performance and immune organ indexes were recorded. Serum samples were collected for immunological evaluation, and tissue samples were collected for histopathology and estimation of Ag NPs residues. Results Treatment with Ag NPs reduced the colonization of C. perfringens in the intestine and ceca, decreased the severity of clinical signs and reduced mortalities in comparison with infected non-treated group. Ag NPs treatment alleviated pathological lesions in the intestine and liver, but their residues were found in the muscles. Conclusion Ag NPs have a positive impact on gut health integrity while having no impact on immune organs. Ag NPs have some residues in muscles; therefore, further studies are needed on the concentration and size of Ag NPs, the route of administration, and withdrawal time to ensure the safety of chicken meat for human consumption.
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Affiliation(s)
- Heba M Salem
- Department of Poultry Diseases, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Elshaimaa Ismael
- Department of Veterinary Hygiene and Management, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Mohamed Shaalan
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
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22
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Rehman MSU, Rehman SU, Yousaf W, Hassan FU, Ahmad W, Liu Q, Pan H. The Potential of Toll-Like Receptors to Modulate Avian Immune System: Exploring the Effects of Genetic Variants and Phytonutrients. Front Genet 2021; 12:671235. [PMID: 34512716 PMCID: PMC8427530 DOI: 10.3389/fgene.2021.671235] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 07/27/2021] [Indexed: 11/13/2022] Open
Abstract
Toll-like receptors (TLRs) are pathogen recognition receptors, and primitive sources of innate immune response that also play key roles in the defense mechanism against infectious diseases. About 10 different TLRs have been discovered in chicken that recognize ligands and participate in TLR signaling pathways. Research findings related to TLRs revealed new approaches to understand the fundamental mechanisms of the immune system, patterns of resistance against diseases, and the role of TLR-specific pathways in nutrient metabolism in chicken. In particular, the uses of specific feed ingredients encourage molecular biologists to exploit the relationship between nutrients (including different phytochemicals) and TLRs to modulate immunity in chicken. Phytonutrients and prebiotics are noteworthy dietary components to promote immunity and the production of disease-resistant chicken. Supplementations of yeast-derived products have also been extensively studied to enhance innate immunity during the last decade. Such interventions pave the way to explore nutrigenomic approaches for healthy and profitable chicken production. Additionally, single-nucleotide polymorphisms in TLRs have shown potential association with few disease outbreaks in chickens. This review aimed to provide insights into the key roles of TLRs in the immune response and discuss the potential applications of these TLRs for genomic and nutritional interventions to improve health, and resistance against different fatal diseases in chicken.
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Affiliation(s)
- Muhammad Saif-Ur Rehman
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, China.,Faculty of Animal Husbandry, Institute of Animal and Dairy Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Saif Ur Rehman
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, China
| | - Wasim Yousaf
- Faculty of Animal Husbandry, Institute of Animal and Dairy Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Faiz-Ul Hassan
- Faculty of Animal Husbandry, Institute of Animal and Dairy Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Waqas Ahmad
- Department of Clinical Sciences, University College of Veterinary and Animal Sciences, Narowal, Pakistan
| | - Qingyou Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, China
| | - Hongping Pan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, China
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23
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Zhao X, Wang L, Zhu C, Xia X, Zhang S, Wang Y, Zhang H, Xu Y, Chen S, Jiang J, Liu S, Wu Y, Wu X, Zhang G, Bai Y, Fotina H, Hu J. The Antimicrobial Peptide Mastoparan X Protects Against Enterohemorrhagic Escherichia coli O157:H7 Infection, Inhibits Inflammation, and Enhances the Intestinal Epithelial Barrier. Front Microbiol 2021; 12:644887. [PMID: 34177825 PMCID: PMC8222680 DOI: 10.3389/fmicb.2021.644887] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 05/07/2021] [Indexed: 12/31/2022] Open
Abstract
Escherichia coli can cause intestinal diseases in humans and livestock, destroy the intestinal barrier, exacerbate systemic inflammation, and seriously threaten human health and animal husbandry development. The aim of this study was to investigate whether the antimicrobial peptide mastoparan X (MPX) was effective against E. coli infection. BALB/c mice infected with E. coli by intraperitoneal injection, which represents a sepsis model. In this study, MPX exhibited no toxicity in IPEC-J2 cells and notably suppressed the levels of interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α), myeloperoxidase (MPO), and lactate dehydrogenase (LDH) released by E. coli. In addition, MPX improved the expression of ZO-1, occludin, and claudin and enhanced the wound healing of IPEC-J2 cells. The therapeutic effect of MPX was evaluated in a murine model, revealing that it protected mice from lethal E. coli infection. Furthermore, MPX increased the length of villi and reduced the infiltration of inflammatory cells into the jejunum. SEM and TEM analyses showed that MPX effectively ameliorated the jejunum damage caused by E. coli and increased the number and length of microvilli. In addition, MPX decreased the expression of IL-2, IL-6, TNF-α, p-p38, and p-p65 in the jejunum and colon. Moreover, MPX increased the expression of ZO-1, occludin, and MUC2 in the jejunum and colon, improved the function of the intestinal barrier, and promoted the absorption of nutrients. This study suggests that MPX is an effective therapeutic agent for E. coli infection and other intestinal diseases, laying the foundation for the development of new drugs for bacterial infections.
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Affiliation(s)
- Xueqin Zhao
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, China.,Faculty of Veterinary Medicine, Sumy National Agrarian University, Sumy, Ukraine
| | - Lei Wang
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, China.,State Key Laboratory of Marine Resource Utilization in South China Sea, School of Biomedical Engineering, Hainan University, Haikou, China
| | - Chunling Zhu
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, China
| | - Xiaojing Xia
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, China
| | - Shouping Zhang
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, China
| | - Yimin Wang
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, China
| | - Huihui Zhang
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, China
| | - Yanzhao Xu
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, China
| | - Shijun Chen
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, China
| | - Jinqing Jiang
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, China
| | - Shanqin Liu
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang, China
| | - Yundi Wu
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Biomedical Engineering, Hainan University, Haikou, China
| | - Xilong Wu
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Biomedical Engineering, Hainan University, Haikou, China
| | - Gaiping Zhang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Yueyu Bai
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, China
| | - Hanna Fotina
- Faculty of Veterinary Medicine, Sumy National Agrarian University, Sumy, Ukraine
| | - Jianhe Hu
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang, China
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24
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Criado-Mesas L, Abdelli N, Noce A, Farré M, Pérez JF, Solà-Oriol D, Martin-Venegas R, Forouzandeh A, González-Solé F, Folch JM. Transversal gene expression panel to evaluate intestinal health in broiler chickens in different challenging conditions. Sci Rep 2021; 11:6315. [PMID: 33737699 PMCID: PMC7973573 DOI: 10.1038/s41598-021-85872-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 03/08/2021] [Indexed: 01/31/2023] Open
Abstract
There is a high interest on gut health in poultry with special focus on consequences of the intestinal diseases, such as coccidiosis and C. perfringens-induced necrotic enteritis (NE). We developed a custom gene expression panel, which could provide a snapshot of gene expression variation under challenging conditions. Ileum gene expression studies were performed through high throughput reverse transcription quantitative real-time polymerase chain reaction. A deep review on the bibliography was done and genes related to intestinal health were selected for barrier function, immune response, oxidation, digestive hormones, nutrient transport, and metabolism. The panel was firstly tested by using a nutritional/Clostridium perfringens model of intestinal barrier failure (induced using commercial reused litter and wheat-based diets without exogenous supplementation of enzymes) and the consistency of results was evaluated by another experiment under a coccidiosis challenge (orally gavaged with a commercial coccidiosis vaccine, 90× vaccine dose). Growth traits and intestinal morphological analysis were performed to check the gut barrier failure occurrence. Results of ileum gene expression showed a higher expression in genes involved in barrier function and nutrient transport in chickens raised in healthy conditions, while genes involved in immune response presented higher expression in C.perfringens-challenged birds. On the other hand, the Eimeria challenge also altered the expression of genes related to barrier function and metabolism, and increased the expression of genes related to immune response and oxidative stress. The panel developed in the current study gives us an overview of genes and pathways involved in broiler response to pathogen challenge. It also allows us to deep into the study of differences in gene expression pattern and magnitude of responses under either a coccidial vaccine or a NE.
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Affiliation(s)
- L Criado-Mesas
- Plant and Animal Genomics, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB Consortium, Bellaterra, Spain.
| | - N Abdelli
- Animal Nutrition and Welfare Service, Animal and Food Science Department, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - A Noce
- Animal and Food Science Department, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - M Farré
- Department of Mathematics, Area of Statistics and Operations Research, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - J F Pérez
- Animal Nutrition and Welfare Service, Animal and Food Science Department, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - D Solà-Oriol
- Animal Nutrition and Welfare Service, Animal and Food Science Department, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - R Martin-Venegas
- Department of Biochemistry and Physiology, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona, 08028, Barcelona, Spain
- Research Institute of Nutrition and Food Safety (INSA-UB), Universitat de Barcelona, 08291, Santa Coloma de Gramanet, Spain
| | - A Forouzandeh
- Animal Nutrition and Welfare Service, Animal and Food Science Department, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - F González-Solé
- Animal Nutrition and Welfare Service, Animal and Food Science Department, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - J M Folch
- Plant and Animal Genomics, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB Consortium, Bellaterra, Spain
- Animal and Food Science Department, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
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25
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Abulaiti A, Ahmed Z, Naseer Z, El-Qaliouby HS, Iqbal MF, Hua GH, Yang LG. Effect of capsaicin supplementation on lactational and reproductive performance of Holstein cows during summer. ANIMAL PRODUCTION SCIENCE 2021. [DOI: 10.1071/an20439] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Context
Summer ambient temperature and humidity are major factors negatively influencing the physiology and the productive and reproductive efficiency of dairy cows. Various management and breeding approaches may be useful for maintaining productivity in dairy cows during summer to minimise these effects.
Aims
The experiment was designed to test a natural phytochemical supplementation of capsaicin (CPS), followed by a specific oestrus synchronisation protocol as a means to maintain productivity and reproductive performance of Chinese Holstein cows during summer in Hubei province, China.
Methods
Lactating Chinese Holstein cows (n = 109) were randomly divided into four groups and supplemented with 0 (control, n = 27), 20 (CPS-20, n = 26), 40 (CPS-40, n = 28) and 60 (CPS-60, n = 28) mg of capsaicin (CPS) per kg of total mixed ration respectively for continuous 30 days initiated on 10 July 2018. Milk production and composition were measured over 45 days from the start of CPS supplementation. After CPS supplementation, all cows were synchronised through a modified Ovsynch oestrus synchronisation protocol, and reproductive variables were recorded. Metabolic parameters were measured on the days before CPS supplementation, artificial insemination (AI) and 50 days post-AI.
Key results
Highest (P < 0.05) milk production were found in the CPS-40 group, and highest total solids and milk fat in the CPS-20 and CPS-40 groups. Milk urea nitrogen and milk fat were generally increased in CPS supplemented cows compared with the control group. Significant increases (P < 0.05) in oestrus response, ovulatory follicle size, ovulation rate and pregnancy rates were observed in the CPS-40 group compared with other groups. Glucose, lipoprotein esterase and aspartate aminotransferase were increased (P < 0.05) in CPS-40 and CPS-60 supplemented groups at the time of AI and 50 days post-AI.
Conclusions
CPS supplementation has the capacity to maintain milk yield, milk composition and serum metabolites in Chinese Holstein dairy cows during summer. The synergistic effect of CPS and the modified oestrus synchronisation protocol also improved reproductive variables of the cows.
Implications
Adoption of CPS as a supplement along with oestrus synchronisation could be a useful and economical strategy for dairy herd keepers to improve herd performance during summer.
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26
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Patra AK. Influence of Plant Bioactive Compounds on Intestinal Epithelial Barrier in Poultry. Mini Rev Med Chem 2020; 20:566-577. [PMID: 31878854 DOI: 10.2174/1389557520666191226111405] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 09/14/2019] [Accepted: 12/03/2019] [Indexed: 02/07/2023]
Abstract
Natural plant bioactive compounds (PBC) have recently been explored as feed additives to improve productivity, health and welfare of poultry following ban or restriction of in-feed antibiotic use. Depending upon the types of PBC, they possess antimicrobial, digestive enzyme secretion stimulation, antioxidant and many pharmacological properties, which are responsible for beneficial effects in poultry production. Moreover, they may also improve the intestinal barrier function and nutrient transport. In this review, the effects of different PBC on the barrier function, permeability of intestinal epithelia and their mechanism of actions are discussed, focusing on poultry feeding. Dietary PBC may regulate intestinal barrier function through several molecular mechanisms by interacting with different metabolic cascades and cellular transcription signals, which may then modulate expressions of genes and their proteins in the tight junction (e.g., claudins, occludin and junctional adhesion molecules), adherens junction (e.g., E-cadherin), other intercellular junctional proteins (e.g., zonula occludens and catenins), and regulatory proteins (e.g., kinases). Interactive effects of PBC on immunomodulation via expressions of several cytokines, chemokines, complement components, pattern recognition receptors and their transcription factors and cellular immune system, and alteration of mucin gene expressions and goblet cell abundances in the intestine may change barrier functions. The effects of PBC are not consistent among the studies depending upon the type and dose of PBC, physiological conditions and parts of the intestine in chickens. An effective concentration in diets and specific molecular mechanisms of PBC need to be elucidated to understand intestinal barrier functionality in a better way in poultry feeding.
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Affiliation(s)
- Amlan Kumar Patra
- Department of Animal Nutrition, West Bengal University of Animal and Fishery Sciences, Belgachia, Kolkata, India
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27
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Effects of cLFchimera peptide on intestinal morphology, integrity, microbiota, and immune cells in broiler chickens challenged with necrotic enteritis. Sci Rep 2020; 10:17704. [PMID: 33077741 PMCID: PMC7573599 DOI: 10.1038/s41598-020-74754-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Accepted: 10/05/2020] [Indexed: 02/07/2023] Open
Abstract
Three hundred and sixty 1-day-old male broiler chicks were randomly allocated to 4 treatments of 6 replicates to evaluate the effects of cLFchimera, a recombinant antimicrobial peptide (AMP), on gut health attributes of broiler chickens under necrotic enteritis (NE) challenge. Treatments were as follows: (T1) unchallenged group fed with corn-soybean meal (CSM) without NE challenge and additives (NC); (T2) group fed with CSM and challenged with NE without any additives (PC); (T3) PC group supplemented with 20 mg cLFchimera/kg diet (AMP); (T4) PC group supplemented with 45 mg antibiotic (bacitracin methylene disalicylate)/kg diet (antibiotic). Birds were sampled for villi morphology, ileal microbiota, and jejunal gene expression of cytokines, tight junctions proteins, and mucin. Results showed that AMP ameliorated NE-related intestinal lesions, reduced mortality, and rehabilitated jejunal villi morphology in NE challenged birds. While the antibiotic non-selectively reduced the count of bacteria, AMP restored microflora balance in the ileum of challenged birds. cLFchimera regulated the expression of cytokines, junctional proteins, and mucin transcripts in the jejunum of NE challenged birds. In conclusion, cLFchimera can be a reliable candidate to substitute growth promoter antibiotics, while more research is required to unveil the exact mode of action of this synthetic peptide.
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28
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Yadav S, Teng PY, Souza Dos Santos T, Gould RL, Craig SW, Lorraine Fuller A, Pazdro R, Kim WK. The effects of different doses of curcumin compound on growth performance, antioxidant status, and gut health of broiler chickens challenged with Eimeria species. Poult Sci 2020; 99:5936-5945. [PMID: 33142511 PMCID: PMC7647913 DOI: 10.1016/j.psj.2020.08.046] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 07/16/2020] [Accepted: 08/11/2020] [Indexed: 11/30/2022] Open
Abstract
Supplementation of broiler diets with feed additives such as chemotherapeutic drugs and antibiotics has side effects, meat residues, and antibiotics resistance complications. Plant-derived natural compounds could be safe and easy substitutes for chemical additives. One of the natural compounds is curcumin, the extract from herbal plant Curcuma longa, known for its antioxidant and antimicrobial properties which may be effective in reducing coccidia infection in poultry. The objective of this study was to evaluate the effects of curcumin on Eimeria challenged (C) and nonchallenged (NC) Cobb 500 broilers. A total of 360 12-day-old male chicks were housed in 36 cages in a completely randomized design with 6 replicates per treatment of 10 birds each cage. The six corn–soybean meal–based treatment diets were fed from day 12 to 20 to C and NC birds in 3-by-two factorial arrangement: nonchallenged control (NCC), NC + 100 mg/kg curcumin, NC + 200 mg/kg curcumin, challenged control (CC), C + 100 mg/kg curcumin, and C + 200 mg/kg curcumin. Broilers in C groups were inoculated orally with 50,000 oocysts of Eimeria maxima, 50,000 oocysts of Eimeria tenella, and 250,000 oocysts of Eimeria acervulina on day 14. The intestinal permeability (day 19), growth performance parameters, and intestinal lesion scoring were measured and recorded on day 20. The means were subjected to two-way ANOVA, and main factors effect and their interactions were considered. The growth performance and permeability were higher (P < 0.001) in the NC and C groups, respectively. However, no interaction was observed between curcumin dose and cocci challenge on both of these parameters. Results from lesion scores and oocyst shedding showed reduction (P < 0.050) in birds fed C + 200 mg/kg curcumin compared with those fed C + 100 mg/kg curcumin or CC. Curcumin treatment showed higher production of GSH (P = 0.002) and total glutathione (GSH+2GSSG) (P = 0.002) but lower GSH/GSSG ratio (P < 0.001) than the NCC group. Curcumin exhibited some positive responses on antioxidant capacity, lesion score, and oocyst shedding in the present study, suggesting that curcumin alone or a combination with other feed additives could be a dietary strategy to improve gut health in broilers.
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Affiliation(s)
- Sudhir Yadav
- Department of Poultry Science, University of Georgia, Athens, GA, USA
| | - Po-Yun Teng
- Department of Poultry Science, University of Georgia, Athens, GA, USA
| | - Tatiane Souza Dos Santos
- Department of Breeding and Animal Nutrition, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | | | | | | | - Robert Pazdro
- Department of Foods and Nutrition, University of Georgia, Athens, GA, USA
| | - Woo Kyun Kim
- Department of Poultry Science, University of Georgia, Athens, GA, USA.
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29
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Adhikari P, Kiess A, Adhikari R, Jha R. An approach to alternative strategies to control avian coccidiosis and necrotic enteritis. J APPL POULTRY RES 2020. [DOI: 10.1016/j.japr.2019.11.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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30
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Lu M, Li RW, Zhao H, Yan X, Lillehoj HS, Sun Z, Oh S, Wang Y, Li C. Effects of Eimeria maxima and Clostridium perfringens infections on cecal microbial composition and the possible correlation with body weight gain in broiler chickens. Res Vet Sci 2020; 132:142-149. [PMID: 32575030 DOI: 10.1016/j.rvsc.2020.05.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 04/19/2020] [Accepted: 05/16/2020] [Indexed: 02/07/2023]
Abstract
With the voluntary and regulatory withdrawal of antibiotic growth promoters from animal feed, coccidiosis and necrotic enteritis (NE) emerge as the top two enteric poultry infectious diseases responsible for major economic loss worldwide. The objective of this study was to investigate the correlation between the cecal microbiota compositions with the growth trait after coccidiosis and NE. In this study, the effects of Eimeria maxima and/or Clostridium perfringens infections on the microbial composition and potential correlation with the body weight gain were investigated in broiler chickens using 16S rRNA gene sequencing. E. maxima and C. perfringens coinfection successfully induced NE with its typical gut lesions and significant reductions in the percentage of relative body weight gain (RBWG%). The NE challenge model did not affect cecal microbial diversity, but influenced the cecal microbial composition. KEGG enzymes in microbiota were significantly altered in abundance following dual infections. Furthermore, significant correlations between cecal microbiota modules and RBWG% were identified in the sham control, E. maxima or C. perfringens infected groups. Understanding of host-microbiota interaction in NE would enhance the development of antibiotics-independent strategies to reduce the harmful effect of NE on the gut microbiota structure, and improve the gut health and poultry production.
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Affiliation(s)
- Mingmin Lu
- Animal Biosciences and Biotechnology Laboratory, Agricultural Research Service (ARS), US Department of Agriculture (USDA), Beltsville, MD, USA
| | - Robert W Li
- Animal Genomics & Improvement Laboratory, ARS, USDA, Beltsville, MD, USA
| | - Hongyan Zhao
- Animal Biosciences and Biotechnology Laboratory, Agricultural Research Service (ARS), US Department of Agriculture (USDA), Beltsville, MD, USA; College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Xianghe Yan
- Environment Microbial and Food Safety Laboratory, ARS, USDA, Beltsville, MD, USA
| | - Hyun S Lillehoj
- Animal Biosciences and Biotechnology Laboratory, Agricultural Research Service (ARS), US Department of Agriculture (USDA), Beltsville, MD, USA
| | - Zhifeng Sun
- Animal Biosciences and Biotechnology Laboratory, Agricultural Research Service (ARS), US Department of Agriculture (USDA), Beltsville, MD, USA
| | - SungTak Oh
- Animal Biosciences and Biotechnology Laboratory, Agricultural Research Service (ARS), US Department of Agriculture (USDA), Beltsville, MD, USA
| | - Yueying Wang
- Animal Genomics & Improvement Laboratory, ARS, USDA, Beltsville, MD, USA; College of Animal Husbandry and Veterinary Science, Henan Agricultural University, Zhengzhou, China
| | - Charles Li
- Animal Biosciences and Biotechnology Laboratory, Agricultural Research Service (ARS), US Department of Agriculture (USDA), Beltsville, MD, USA.
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31
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Moniruzzaman M, Min T. Curcumin, Curcumin Nanoparticles and Curcumin Nanospheres: A Review on Their Pharmacodynamics Based on Monogastric Farm Animal, Poultry and Fish Nutrition. Pharmaceutics 2020; 12:E447. [PMID: 32403458 PMCID: PMC7284824 DOI: 10.3390/pharmaceutics12050447] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 04/28/2020] [Accepted: 05/08/2020] [Indexed: 12/13/2022] Open
Abstract
Nanotechnology is an emerging field of science that is widely used in medical sciences. However, it has limited uses in monogastric farm animal as well as fish and poultry nutrition. There are some works that have been done on curcumin and curcumin nanoparticles as pharmaceutics in animal nutrition. However, studies have shown that ingestion of curcumin or curcumin nanoparticles does not benefit the animal health much due to their lower bioavailability, which may result because of low absorption, quick metabolism and speedy elimination of curcumin from the animal body. For these reasons, advanced formulations of curcumin are needed. Curcumin nanospheres is a newly evolved field of nanobiotechnology which may have beneficial effects in terms of growth increment, anti-microbial, anti-inflammatory and neuroprotective effects on animal and fish health by means of nanosphere forms that are biodegradable and biocompatible. Thus, this review aims to highlight the potential application of curcumin, curcumin nanoparticles and curcumin nanospheres in the field of monogastric farm animal, poultry and fish nutrition. We do believe that the review provides the perceptual vision for the future development of curcumin, curcumin nanoparticles and curcumin nanospheres and their applications in monogastric farm animal, poultry and fish nutrition.
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Affiliation(s)
| | - Taesun Min
- Department of Animal Biotechnology, Jeju International Animal Research Center (JIA) & Sustainable Agriculture Research Institute (SARI), Jeju National University, Jeju 63243, Korea;
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Zhang S, Shen YR, Wu S, Xiao YQ, He Q, Shi SR. The dietary combination of essential oils and organic acids reduces Salmonella enteritidis in challenged chicks. Poult Sci 2020; 98:6349-6355. [PMID: 31393588 PMCID: PMC8913765 DOI: 10.3382/ps/pez457] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 07/29/2019] [Indexed: 01/09/2023] Open
Abstract
This study was conducted to determine the effects of essential oils and organic acids (EOA) on Salmonella Enteritidis (S. Enteritidis) challenged chickens. One-day-old specific pathogen-free (SPF) chicks (250) were randomly assigned to 5 groups, with 50 birds in each group. The treatment groups were as follows: 1) basal diet, negative control group (NC); 2) basal diet + S. Enteritidis, positive control group (PC); 3) PC + 4,000 g/t of enrofloxacin (5%), antibiotic group (ENR); 4) PC + 800 g/t of EOA1, thymol-benzoic acid group (TBA); and 5) PC + 800 g/t of EOA2, cinnamylaldehyde-caproic acid group (CCA). At 7 D of age, each bird, except those in NC, was orally gavaged with 0.4 mL of a suspension of 4.4 × 109 cfu S. Enteritidis/mL. Results revealed that ENR reduced bacterial counts in the liver and spleen on days 3, 5, and 7 post-challenge more (P < 0.05) than any other treatments. However, bacterial counts in cecal contents among ENR, TBA, and CCA were similar at 5 and 7 D post-challenge but lower than those of PC. Additionally, the bacterial counts in liver, spleen, and cecum contents in TBA were lower (P < 0.05) than in PC at 3, 5, and 7 D post-challenge; the bacterial counts in spleen contents in TBA were lower (P < 0.05) than in CCA at 7 D post-challenge. Tumor necrosis factor-α contents in TBA and CCA were lower (P < 0.05) than those in PC. Also, the ratio of villus height to crypt depth in the ileum of CCA was higher (P < 0.05) than that of PC and ENR; however, there was no difference in the secretory IgA content of the jejunum among the groups. In conclusion, EOA had a bacteriostatic effect on S. Enteritidis, and the effect of the thymol-benzoic acid complex surpassed that of the cinnamaldehyde-caproic acid complex. Therefore, EOA may act as an effective antibiotic substitute for animals in the prevention and treatment of Salmonella.
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Affiliation(s)
- S Zhang
- Poultry Institute, Chinese Academy of Agriculture Science, Yangzhou, Jiangsu 225125, China.,Institute of Effective Evaluation of Feed and Feed Additive (Poultry institute), Ministry of Agriculture, Yangzhou, Jiangsu 225125, China
| | - Y R Shen
- Poultry Institute, Chinese Academy of Agriculture Science, Yangzhou, Jiangsu 225125, China.,Institute of Effective Evaluation of Feed and Feed Additive (Poultry institute), Ministry of Agriculture, Yangzhou, Jiangsu 225125, China
| | - S Wu
- Poultry Institute, Chinese Academy of Agriculture Science, Yangzhou, Jiangsu 225125, China.,Institute of Effective Evaluation of Feed and Feed Additive (Poultry institute), Ministry of Agriculture, Yangzhou, Jiangsu 225125, China
| | - Y Q Xiao
- Poultry Institute, Chinese Academy of Agriculture Science, Yangzhou, Jiangsu 225125, China.,Institute of Effective Evaluation of Feed and Feed Additive (Poultry institute), Ministry of Agriculture, Yangzhou, Jiangsu 225125, China
| | - Q He
- Shanghai Menon Animal Nutrition Technology Co., LTD, Shanghai 201800, China
| | - S R Shi
- Poultry Institute, Chinese Academy of Agriculture Science, Yangzhou, Jiangsu 225125, China.,Institute of Effective Evaluation of Feed and Feed Additive (Poultry institute), Ministry of Agriculture, Yangzhou, Jiangsu 225125, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu 225000, China
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An X, Wang Y, Wang R, Hao X, Hu Y, Guo T, Zhang J, Wang W, Shi X, Han S, Qi J. Effects of a blend of cinnamaldehyde, eugenol and capsicum oleoresin (CEC) on growth performance, nutrient digestibility, immune response and antioxidant status of growing ewes. Livest Sci 2020. [DOI: 10.1016/j.livsci.2020.103982] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Upadhaya SD, Kim YM, Shi H, Le Cour Grandmaison J, Blanchard A, Kim IH. Standardized Plant Extract Alleviates the Negative Effects of FMD Vaccination on Animal Performance. Animals (Basel) 2020; 10:ani10030455. [PMID: 32182817 PMCID: PMC7143122 DOI: 10.3390/ani10030455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 02/27/2020] [Accepted: 03/03/2020] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Foot and Mouth Disease (FMD) is among the viral diseases causing poor growth performance and reduced immune status, leading to heavy economic losses in livestock. The vaccination of animals against FMD may lead to vaccination stress, thereby reducing the growth performance of animals. The growth promoting effects of a plant extract (consisting of capsicum and turmeric oleoresins) against FMD vaccinated growing pigs are evaluated in the present study. It was determined that the supplementation of the plant extract significantly improved performance and increased the antibody titer against FMD antigens. However, the immune parameters measured at days 10, 15, 20 and 25 post-FMD vaccination remained unaffected. Abstract The present study was conducted to assess the efficacy of a plant extract (PE) on growth performance and immune status in foot and mouth disease (FMD)-vaccinated growing pigs. A total of 120 crossed ((Landrace × Yorkshire) × Duroc) growing pigs with an average initial body weight (BW) of 24.66 ± 2.34 kg and an average age of 70 days were randomized into three groups (10 pens; 4 pigs per pen per treatment) as follows: a nonvaccinated negative control group (NV), a FMD vaccinated group (OV), and a third group received a 0.0125% PE supplement after vaccination (PV), in a 6-week trial. The PV group receiving PE supplementation increased (p < 0.05) the BW compared with the OV group, and average daily gain (ADG) during days 1–14, overall and gain-to-feed ratio (G: F) in days 1–14, and dry matter (DM) digestibility at week 6 were higher (p < 0.05) in the PV compared with the OV group. A significant increase (p < 0.05) in haptoglobin concentration was observed in the OV group compared with the NV group at 25 days postvaccination. The inhibition percentage of antibodies against FMD in the sera reached above 50% in the PV group 5 days earlier than in the OV group. The findings suggest that the inclusion of PE in the diet promoted the performance of vaccinated growing pigs.
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Affiliation(s)
- Santi Devi Upadhaya
- Department of Animal Resource and Science, Dankook University, No. 29 Anseodong, Cheonan, Choongnam 330-714, Korea; (S.D.U.); (Y.M.K.); (H.S.)
| | - Yong Min Kim
- Department of Animal Resource and Science, Dankook University, No. 29 Anseodong, Cheonan, Choongnam 330-714, Korea; (S.D.U.); (Y.M.K.); (H.S.)
| | - Huan Shi
- Department of Animal Resource and Science, Dankook University, No. 29 Anseodong, Cheonan, Choongnam 330-714, Korea; (S.D.U.); (Y.M.K.); (H.S.)
| | | | - Alexandra Blanchard
- Pancosma, A-One Business Center, La piece 3, CH-1180 Rolle, Switzerland; (J.L.C.G.); (A.B.)
| | - In Ho Kim
- Department of Animal Resource and Science, Dankook University, No. 29 Anseodong, Cheonan, Choongnam 330-714, Korea; (S.D.U.); (Y.M.K.); (H.S.)
- Correspondence: ; Tel.: +82-41-550-3652; Fax: +82-41-565-2949
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Granstad S, Kristoffersen AB, Benestad SL, Sjurseth SK, David B, Sørensen L, Fjermedal A, Edvardsen DH, Sanson G, Løvland A, Kaldhusdal M. Effect of Feed Additives as Alternatives to In-feed Antimicrobials on Production Performance and Intestinal Clostridium perfringens Counts in Broiler Chickens. Animals (Basel) 2020; 10:ani10020240. [PMID: 32028636 PMCID: PMC7070674 DOI: 10.3390/ani10020240] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 01/27/2020] [Accepted: 01/29/2020] [Indexed: 12/19/2022] Open
Abstract
Numerous non-antibiotic feed additives (alternatives to antibiotics, ATAs) have been marketed, but few have been evaluated under uniform testing conditions modelling commercial flocks. We compared 24 ATA treatments and the ionophorous coccidiostat narasin against a diet without any feed additives. Feed conversion ratio and body weight gain were registered from day 0 to 28 in Ross 308 chickens housed on litter floor. The chickens were challenged with Eimeria spp., and cecal Clostridium perfringens (CP) counts were investigated. Active components from all ATA classes had a positive impact on intestinal health or production performance. Whereas narasin had a strong CP-reducing effect in combination with performance-promoting impact, only two ATA treatments achieved significantly beneficial effects on CP counts as well as feed conversion during the time span following Eimeria challenge. Active components present in these two treatments include a Bacillus subtilis probiotic strain, short- and medium-chain fatty acids and Saccharomyces cerevisiae components. Different ATA classes had beneficial impact during distinct rearing phases and on specific performance targets, suggesting that optimizing combinations and use of active components can make ATAs even more useful tools in broiler rearing without the use of in-feed antimicrobials. Further studies of promising ATAs and ATA combinations are required.
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Affiliation(s)
- Silje Granstad
- Norwegian Veterinary Institute, P.O. Box 750 Sentrum, 0106 Oslo, Norway; (A.B.K.); (S.L.B.); (S.K.S.); (M.K.)
- Correspondence:
| | - Anja B. Kristoffersen
- Norwegian Veterinary Institute, P.O. Box 750 Sentrum, 0106 Oslo, Norway; (A.B.K.); (S.L.B.); (S.K.S.); (M.K.)
| | - Sylvie L. Benestad
- Norwegian Veterinary Institute, P.O. Box 750 Sentrum, 0106 Oslo, Norway; (A.B.K.); (S.L.B.); (S.K.S.); (M.K.)
| | - Siri K. Sjurseth
- Norwegian Veterinary Institute, P.O. Box 750 Sentrum, 0106 Oslo, Norway; (A.B.K.); (S.L.B.); (S.K.S.); (M.K.)
| | - Bruce David
- Nortura SA, P.O. Box 360 Økern, 0513 Oslo, Norway; (B.D.); (A.L.)
| | - Line Sørensen
- Felleskjøpet Fôrutvikling AS, Nedre Ila 20, 7018 Trondheim, Norway; (L.S.); (G.S.)
| | | | | | - Gorm Sanson
- Felleskjøpet Fôrutvikling AS, Nedre Ila 20, 7018 Trondheim, Norway; (L.S.); (G.S.)
| | - Atle Løvland
- Nortura SA, P.O. Box 360 Økern, 0513 Oslo, Norway; (B.D.); (A.L.)
| | - Magne Kaldhusdal
- Norwegian Veterinary Institute, P.O. Box 750 Sentrum, 0106 Oslo, Norway; (A.B.K.); (S.L.B.); (S.K.S.); (M.K.)
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Lee SH, Bang S, Jang HH, Lee EB, Kim BS, Kim SH, Kang SH, Lee KW, Kim DW, Kim JB, Choe JS, Park SY, Lillehoj HS. Effects of Allium hookeri on gut microbiome related to growth performance in young broiler chickens. PLoS One 2020; 15:e0226833. [PMID: 31923247 PMCID: PMC6953852 DOI: 10.1371/journal.pone.0226833] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 12/05/2019] [Indexed: 01/08/2023] Open
Abstract
Healthy food promotes beneficial bacteria in the gut microbiome. A few prebiotics act as food supplements to increase fermentation by beneficial bacteria, which enhance the host immune system and health. Allium hookeri is a healthy food with antioxidant and anti-inflammatory activities. A. hookeri is used as a feed supplement for broiler chickens to improve growth performance. Although the underlying mechanism is unknown, A. hookeri may alter the gut microbiome. In the current study, 16S rRNA sequencing has been carried out using samples obtained from the cecum of broiler chickens exposed to diets comprising different tissue types (leaf and root) and varying amounts (0.3% and 0.5%) of A. hookeri to investigate their impact on gut microbiome. The microbiome composition in the groups supplemented with A. hookeri leaf varied from that of the control group. Especially, exposure to 0.5% amounts of leaf resulted in differences in the abundance of genera compared with diets comprising 0.3% leaf. Exposure to a diet containing 0.5% A. hookeri leaf decreased the abundance of the following bacteria: Eubacterium nodatum, Marvinbryantia, Oscillospira, and Gelria. The modulation of gut microbiome by leaf supplement correlated with growth traits including body weight, bone strength, and infectious bursal disease antibody. The results demonstrate that A. hookeri may improve the health benefits of broiler chickens by altering the gut microbiome.
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Affiliation(s)
- Sung-Hyen Lee
- National Institute of Agricultural Sciences, Rural Development Administration, Isoe-myeon, Wanju-Gun, Jeollabuk-do, Republic of Korea
| | - Sohyun Bang
- Interdisciplinary Program in Bioinformatics, Seoul National University, Kwan-ak Gu, Seoul, Republic of Korea
| | - Hwan-Hee Jang
- National Institute of Agricultural Sciences, Rural Development Administration, Isoe-myeon, Wanju-Gun, Jeollabuk-do, Republic of Korea
| | - Eun-Byeol Lee
- National Institute of Agricultural Sciences, Rural Development Administration, Isoe-myeon, Wanju-Gun, Jeollabuk-do, Republic of Korea
| | - Bong-Sang Kim
- Department of Agricultural and Life Sciences and Research Institute of Population Genomics, Seoul National University, Seoul, Republic of Korea
| | - Seung-Hwan Kim
- KYOCHON F&B CO, Osan city, Kyounggido, Republic of Korea
| | - Sang-Hyun Kang
- KYOCHON F&B CO, Osan city, Kyounggido, Republic of Korea
| | - Kyung-Woo Lee
- Department of Animal Science and Technology, Konkuk University, Gawngjin-gu, Seoul, Republic of Korea
| | - Dong-Wook Kim
- Department of Poultry Science, Korean National College of Agriculture and Fisheries, Deokjin-gu, Jeonju-si, Jeollabuk-do, Republic of Korea
| | - Jung-Bong Kim
- National Institute of Agricultural Sciences, Rural Development Administration, Isoe-myeon, Wanju-Gun, Jeollabuk-do, Republic of Korea
| | - Jeong-Sook Choe
- National Institute of Agricultural Sciences, Rural Development Administration, Isoe-myeon, Wanju-Gun, Jeollabuk-do, Republic of Korea
| | - Shin-Young Park
- National Institute of Agricultural Sciences, Rural Development Administration, Isoe-myeon, Wanju-Gun, Jeollabuk-do, Republic of Korea
| | - Hyun S. Lillehoj
- Animal Bioscience and Biotechnology Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, Department of Agriculture, Beltsville, MD, United States of America
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Pirgozliev V, Mansbridge SC, Rose SP, Lillehoj HS, Bravo D. Immune modulation, growth performance, and nutrient retention in broiler chickens fed a blend of phytogenic feed additives. Poult Sci 2019; 98:3443-3449. [PMID: 30325468 DOI: 10.3382/ps/pey472] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 09/12/2018] [Indexed: 11/20/2022] Open
Abstract
This study aimed to assess the effect of a commercial blend of phytogenic feed additives (PA), comprising 5% carvacrol, 3% cinnamaldehyde, and 2% capsicum oleoresin on the modulation of immune biomarkers of broiler chickens, their growth performance, dietary energy, and nutrient retention. Four-hundred day-old birds were assigned to one of four dietary treatments. Two control diets based on either wheat (WC) or maize (MC) were each given with and without PA at 100 g/t. Growth performance variables including feed intake (FI), weight gain (WG), and feed conversion ratio (FCR) were recorded. Dietary N-corrected apparent metabolizable energy (MEn), dry matter (DMR), nitrogen (NR), and fat retention (FR) coefficients were also determined. Gene expression of immune biomarkers (cytokines) were determined in caecal tonsil tissue from 21 d old birds. Expression of IL2, IL18, IL10, and IL17C in the caecal tonsils were upregulated (P < 0.05) in the birds fed MC-based diets compared to the WC fed birds. Feeding PA supplemented diets downregulated the expression of CD40LG (P < 0.001), IFNG, and IL6 (P < 0.05). There was a cereal type × PA interaction (P < 0.05), as expression of IFNB was downregulated in the birds fed PA supplemented MC but not WC. However, expression of IL12B was downregulated in birds fed PA supplemented WC but there was no significant (P > 0.05) change in expression levels in birds fed MC diets. Feeding MC diets gave greater FI (P < 0.001) and ME (P < 0.05), but lower FCR (P < 0.05) compared to birds fed WC diets. The WG and nutrient retention coefficients were not affected (P > 0.05) by cereal type. Supplementary PA improved FI (P < 0.05), WG (P < 0.001), FCR (P < 0.05), MEn (P < 0.05), MEn: GE ratio (P < 0.05), and FR (P < 0.05). In conclusion, dietary inclusion of PA improved overall growth performance variables, energy, and nutrient retention and intestinal cytokine expression.
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Affiliation(s)
- V Pirgozliev
- Avian Science Research Centre, Scottish Agricultural College, Auchincruive, Ayr KA6 5HW, UK.,Department of Animal Production, Welfare and Veterinary Sciences, The National Institute of Poultry Husbandry, Harper Adams University, Shropshire TF10 8NB, UK
| | - S C Mansbridge
- Department of Animal Production, Welfare and Veterinary Sciences, The National Institute of Poultry Husbandry, Harper Adams University, Shropshire TF10 8NB, UK
| | - S P Rose
- Department of Animal Production, Welfare and Veterinary Sciences, The National Institute of Poultry Husbandry, Harper Adams University, Shropshire TF10 8NB, UK
| | - H S Lillehoj
- Animal Parasitic Diseases Laboratory, Animal and Natural Resources Institute, Agricultural Research, Service-U.S. Department of Agriculture, Beltsville, MD 20705
| | - D Bravo
- Pancosma S.A., CH-1218, Geneva, Switzerland
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Chen X, Nedelkov K, Oh J, Harper M, Wall E, Felix T, Hristov A. Effect of a blend of artificial sweetener and capsicum on productive performance and blood chemistry in growing lambs. Anim Feed Sci Technol 2019. [DOI: 10.1016/j.anifeedsci.2019.114308] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Lin Q, Su G, Wu A, Chen D, Yu B, Huang Z, Luo Y, Mao X, Zheng P, Yu J, Luo J, He J. Bombyx mori gloverin A2 alleviates enterotoxigenic Escherichia coli-induced inflammation and intestinal mucosa disruption. Antimicrob Resist Infect Control 2019; 8:189. [PMID: 31788236 PMCID: PMC6878672 DOI: 10.1186/s13756-019-0651-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Accepted: 11/11/2019] [Indexed: 01/20/2023] Open
Abstract
Background Enterotoxigenic Escherichia coli (ETEC) is one of the leading bacterial causes of intestinal inflammation and diarrhea. However, the ETEC is frequently resistant to common antibiotics. In this study, we explored the role of a novel antibacterial peptide Bombyx mori gloverin A2 (BMGlvA2) in alleviating ETEC-induced inflammation and intestinal epithelium disruption in mice. Methods An ETEC-challenged mice model was used, and the ETEC-challenged mice and non-challenged mice were treated by the BMGlvA2 at different doses. Results ETEC challenge not only elevated the concentrations of serum inflammatory cytokines such as the IL-6 and TNF-α (P < 0.01), but also elevated the concentrations of serum creatinine and urea (P < 0.05). However, BMGlvA2 attenuated the inflammatory responses by decreasing the serum inflammatory cytokines and improving the metabolisms in ETEC-challenged mice, and alleviated the ETEC-induced tissue damage in spleen. Moreover, BMGlvA2 treatment significantly elevated the duodenum villus height and decreased the crypt depth in the duodenum and ileum in ETEC-challenged mice (P < 0.05). Interestingly, BMGlvA2 improved the distribution and abundance of tight-junction protein ZO1 in duodenum and ileum epithelium after ETEC-challenge. Moreover, BMGlvA2 significantly down-regulated the expression levels of inflammatory cytokines (IL-1β, IL-6, and TNF-α) and the apoptosis-related genes (Caspase 8 and Caspase 9) in jejunal mucosa (P < 0.05) in the TETC-challenged mice. Importantly, BMGlvA2 significantly elevated the expression levels of critical genes related to mucosal barrier functions such as the mucins (MUC1 and MUC2) and glucose transporter (GLUT2) in the intestinal mucosa (P < 0.05). Conclusion Our results suggested a novel function of the conventional antibacterial peptides, and the anti-bacterial and anti-inflammatory properties of BMGlvA2 may allow it a potential substitute for conventionally used antibiotics or drugs.
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Affiliation(s)
- Qian Lin
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan 611130 People’s Republic of China
- Key Laboratory for Animal Disease-Resistance Nutrition and Feed, Ministry of Agriculture, Chengdu, Sichuan 625014 People’s Republic of China
| | - Guoqi Su
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan 611130 People’s Republic of China
- Key Laboratory for Animal Disease-Resistance Nutrition and Feed, Ministry of Agriculture, Chengdu, Sichuan 625014 People’s Republic of China
| | - Aimin Wu
- Guangdong Key Laboratory for Innovative Development and Uilization of Forest Plant Germplasm, South China Agricultural University, Guangzhou, 510642 China
| | - Daiwen Chen
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan 611130 People’s Republic of China
- Key Laboratory for Animal Disease-Resistance Nutrition and Feed, Ministry of Agriculture, Chengdu, Sichuan 625014 People’s Republic of China
| | - Bing Yu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan 611130 People’s Republic of China
- Key Laboratory for Animal Disease-Resistance Nutrition and Feed, Ministry of Agriculture, Chengdu, Sichuan 625014 People’s Republic of China
| | - Zhiqing Huang
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan 611130 People’s Republic of China
- Key Laboratory for Animal Disease-Resistance Nutrition and Feed, Ministry of Agriculture, Chengdu, Sichuan 625014 People’s Republic of China
| | - Yuheng Luo
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan 611130 People’s Republic of China
- Key Laboratory for Animal Disease-Resistance Nutrition and Feed, Ministry of Agriculture, Chengdu, Sichuan 625014 People’s Republic of China
| | - Xiangbing Mao
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan 611130 People’s Republic of China
- Key Laboratory for Animal Disease-Resistance Nutrition and Feed, Ministry of Agriculture, Chengdu, Sichuan 625014 People’s Republic of China
| | - Ping Zheng
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan 611130 People’s Republic of China
- Key Laboratory for Animal Disease-Resistance Nutrition and Feed, Ministry of Agriculture, Chengdu, Sichuan 625014 People’s Republic of China
| | - Jie Yu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan 611130 People’s Republic of China
- Key Laboratory for Animal Disease-Resistance Nutrition and Feed, Ministry of Agriculture, Chengdu, Sichuan 625014 People’s Republic of China
| | - Junqiu Luo
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan 611130 People’s Republic of China
- Key Laboratory for Animal Disease-Resistance Nutrition and Feed, Ministry of Agriculture, Chengdu, Sichuan 625014 People’s Republic of China
| | - Jun He
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan 611130 People’s Republic of China
- Key Laboratory for Animal Disease-Resistance Nutrition and Feed, Ministry of Agriculture, Chengdu, Sichuan 625014 People’s Republic of China
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Forgie AJ, Fouhse JM, Willing BP. Diet-Microbe-Host Interactions That Affect Gut Mucosal Integrity and Infection Resistance. Front Immunol 2019; 10:1802. [PMID: 31447837 PMCID: PMC6691341 DOI: 10.3389/fimmu.2019.01802] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 07/17/2019] [Indexed: 12/17/2022] Open
Abstract
The gastrointestinal tract microbiome plays a critical role in regulating host innate and adaptive immune responses against pathogenic bacteria. Disease associated dysbiosis and environmental induced insults, such as antibiotic treatments can lead to increased susceptibility to infection, particularly in a hospital setting. Dietary intervention is the greatest tool available to modify the microbiome and support pathogen resistance. Some dietary components can maintain a healthy disease resistant microbiome, whereas others can contribute to an imbalanced microbial population, impairing intestinal barrier function and immunity. Characterizing the effects of dietary components through the host-microbe axis as it relates to gastrointestinal health is vital to provide evidence-based dietary interventions to mitigate infections. This review will cover the effect of dietary components (carbohydrates, fiber, proteins, fats, polyphenolic compounds, vitamins, and minerals) on intestinal integrity and highlight their ability to modulate host-microbe interactions as to improve pathogen resistance.
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Affiliation(s)
| | | | - Benjamin P. Willing
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
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Kim WH, Lillehoj HS, Min W. Indole Treatment Alleviates Intestinal Tissue Damage Induced by Chicken Coccidiosis Through Activation of the Aryl Hydrocarbon Receptor. Front Immunol 2019; 10:560. [PMID: 30972060 PMCID: PMC6443889 DOI: 10.3389/fimmu.2019.00560] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 03/04/2019] [Indexed: 12/13/2022] Open
Abstract
Indoles, as the ligands of aryl hydrocarbon receptor (AhR), have been shown to possess immune-modulating property in terms of the balancing between regulatory T cells (Treg) and T helper 17 cells (Th17) activities. In the present study, we examined the effects of dietary indoles, 3,3′-diindolylmethane (DIM) and indole-3-carbinol (I3C), on CD4+T cell population and functions in chickens. Furthermore, the effects of dietary DIM treatment on chicken coccidiosis caused by an apicomplexan parasite were investigated. Dietary treatment of healthy chickens with DIM and I3C induced increased CD4+CD25+ (Treg) cells and the mRNA expression of IL-10, while decreasing number of CD4+IL-17A+ (Th17) cells and Th17-related cytokines transcripts expression in the intestine. In addition, we explored the role of AhR in indole-treated splenic lymphocytes by using AhR antagonist and our results suggested that DIM is a ligand for chicken AhR. In chicken coccidiosis, treatment of DIM increased the ratio of Treg/Th17 cells and significantly reduced intestinal lesion although no significant changes in body weight and fecal oocyst production were noted compared to non-treated control group. These results indicate that DIM is likely to affect the ratios of Treg/Th17 reducing the level of local inflammatory response induced by Eimeria or facilitate repairing process of inflamed gut following Eimeria infection. The results described herein are thus consistent with the concept that AhR ligand modulates the T cell immunity through the alteration of Treg/Th17 cells with Treg dominance. To our knowledge, present study is the first scientific report showing the effects of dietary indole on T cell immunity in poultry species.
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Affiliation(s)
- Woo H Kim
- Animal Biosciences and Biotechnology Laboratory, U. S. Department of Agriculture, Beltsville Agricultural Research Center, ARS, Beltsville, MD, United States
| | - Hyun S Lillehoj
- Animal Biosciences and Biotechnology Laboratory, U. S. Department of Agriculture, Beltsville Agricultural Research Center, ARS, Beltsville, MD, United States
| | - Wongi Min
- College of Veterinary Medicine and Institute of Animal Medicine, Gyeongsang National University, Jinju, South Korea
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Han S, Yu H, Yang F, Qiao S, He P. Effect of dietary supplementation with hyperimmunized hen egg yolk powder on diarrhoea incidence and intestinal health of weaned pigs. FOOD AGR IMMUNOL 2019. [DOI: 10.1080/09540105.2019.1581732] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Affiliation(s)
- Shuaijuan Han
- State Key Laboratory of Animal Nutrition, Ministry of Agriculture Feed Industry Centre, College of Animal Science and Technology, China Agricultural University, Beijing, People’s Republic of China
| | - Haitao Yu
- State Key Laboratory of Animal Nutrition, Ministry of Agriculture Feed Industry Centre, College of Animal Science and Technology, China Agricultural University, Beijing, People’s Republic of China
| | - Fengfan Yang
- Hubei Shendi Biological Technology Co., LTD, Jingmen, People’s Republic of China
| | - Shiyan Qiao
- State Key Laboratory of Animal Nutrition, Ministry of Agriculture Feed Industry Centre, College of Animal Science and Technology, China Agricultural University, Beijing, People’s Republic of China
| | - Pingli He
- State Key Laboratory of Animal Nutrition, Ministry of Agriculture Feed Industry Centre, College of Animal Science and Technology, China Agricultural University, Beijing, People’s Republic of China
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43
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Abd El-Hack ME, Alagawany M, Abdelnour S. Responses of growing rabbits to supplementing diet with a mixture of black and red pepper oils as a natural growth promoter. J Anim Physiol Anim Nutr (Berl) 2018; 103:509-517. [PMID: 30593689 DOI: 10.1111/jpn.13045] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 10/19/2018] [Accepted: 11/23/2018] [Indexed: 12/28/2022]
Abstract
The current study was explored to examine the impacts of dietary inclusion of mixture of black (BPO) and red pepper (RPO) oils as growth promoters on growth, carcass, blood haematology, serum chemistry, immunity and antioxidative status of New Zealand White rabbits (NZW). A number total of 100 5-week-old NZW growing weaned rabbits were randomly allocated into four treatment groups in a complete randomized experiment. The dietary treatment groups were as follows: control: basal diet; BRP0.5: basal diet + 0.25 g BPO + 0.25 g RPO/kg diet; BRP1.0: basal diet + 0.50 g BPO + 0.50 g RPO/kg diet; and BRP1.5: basal diet + 0.75 g BPO + 0.75 g RPO/kg diet. Rabbits fed the highest level of BRP mixture were the heaviest, while the control rabbits were the lightest. During 5-9 weeks of age, a gradual improvement in feed conversion ratio (FCR) was noticed with increasing BRP level. The control group excelled all BRP groups regarding the majority of blood haematological parameters. Liver function was better in rabbits fed BRP enriched diets than the control. A gradual depression (p < 0.05 or 0.01) in serum lipids regardless high-density lipoprotein (HDL) were recorded with elevating BRP level in the diet. The supplementation of BRP mixture enhanced the immune function and serum superoxide dismutase (SOD) activities and depressed serum malondialdehyde (MDA) in comparison with control. It could be concluded that dietary BRP mixture can affect some of growth traits, improve the immunity and antioxidant parameters, lower lipid profile and lipid peroxidation. Based on the study results, the recommended level of BRP mixture is 1.5 g/kg diet.
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Affiliation(s)
| | - Mahmoud Alagawany
- Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Sameh Abdelnour
- Animal Production Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
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44
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Huang T, Gao B, Chen WL, Xiang R, Yuan MG, Xu ZH, Peng XY. Temporal Effects of High Fishmeal Diet on Gut Microbiota and Immune Response in Clostridium perfringens-Challenged Chickens. Front Microbiol 2018; 9:2754. [PMID: 30483244 PMCID: PMC6243065 DOI: 10.3389/fmicb.2018.02754] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 10/29/2018] [Indexed: 12/30/2022] Open
Abstract
Necrotic enteritis (NE) caused by Clostridium perfringens is responsible for huge financial losses in the poultry industry annually. A diet highly supplemented with fishmeal is one factor predisposing chickens to the development of clinical NE. However, the effects of fishmeal-rich diets on the gut microbiota and immune response in chickens with C. perfringens challenge over the long-term are not well-understood. Here, a chicken NE model was established in which chickens were fed high fishmeal diet and subsequently infected with C. perfringens (FM/CP). Two control groups of chickens, one that was not infected and had a high fishmeal feeding (FM) and another group only infected with C. perfringens with basic diets (CP), were used as comparators. We analyzed the gut microbiota and immune response of the three groups at the age of 20, 24 [1 day post-infection (dpi)] and 30 days (7 dpi) using 16S rDNA sequencing and real-time PCR, respectively. We found that the composition of the gut microbiota had significant shifted in both the CP and FM/CP groups, although the CP group did not have intestinal lesions. The structure of the gut microbiota in C. perfringens-challenged chickens, independent of a high fishmeal diet, had the tendency to return to their non-infection state if the chickens no longer received C. perfringens challenge. Gut microbiota variation with time in challenged chickens with high fishmeal diet feeding was superimposed upon that of non-infected chickens with high fishmeal feeding. For the immune response, the relative expression of IL-8 in the ileum was significantly higher in infected chickens independent of high fishmeal feeding than in non-infected chickens. However, the expression of alpha 1-acid glycoprotein (AGP) and serum amyloid A (SAA) genes in chicken liver were significantly increased in FM/CP compared to the other groups. In conclusion, high fishmeal feeding induced significant changes to the structure of chicken gut microbiota over time and such changes provided an opening for C. perfringens infection to progress to NE. The relative expression of AGP and SAA in liver tissue may be used as diagnostic biomarkers for poultry NE but such an indication requires further investigation.
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Affiliation(s)
- Ting Huang
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, China.,Key Laboratory of Livestock Disease Prevention of Guangdong Province, Guangzhou, China.,Scientific Observing and Experimental Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture, Guangzhou, China.,Chinese Traditional Medicine Engineering Technology Research Center of Guangdong Province, Guangzhou, China
| | - Biao Gao
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, China.,Key Laboratory of Livestock Disease Prevention of Guangdong Province, Guangzhou, China.,Scientific Observing and Experimental Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture, Guangzhou, China.,Chinese Traditional Medicine Engineering Technology Research Center of Guangdong Province, Guangzhou, China
| | - Wen-Lu Chen
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, China.,Key Laboratory of Livestock Disease Prevention of Guangdong Province, Guangzhou, China.,Scientific Observing and Experimental Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture, Guangzhou, China.,Chinese Traditional Medicine Engineering Technology Research Center of Guangdong Province, Guangzhou, China
| | - Rong Xiang
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, China.,Key Laboratory of Livestock Disease Prevention of Guangdong Province, Guangzhou, China.,Scientific Observing and Experimental Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture, Guangzhou, China.,Chinese Traditional Medicine Engineering Technology Research Center of Guangdong Province, Guangzhou, China
| | - Ming-Gui Yuan
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, China.,Key Laboratory of Livestock Disease Prevention of Guangdong Province, Guangzhou, China.,Scientific Observing and Experimental Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture, Guangzhou, China.,Chinese Traditional Medicine Engineering Technology Research Center of Guangdong Province, Guangzhou, China
| | - Zhi-Hong Xu
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, China.,Key Laboratory of Livestock Disease Prevention of Guangdong Province, Guangzhou, China.,Scientific Observing and Experimental Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture, Guangzhou, China.,Chinese Traditional Medicine Engineering Technology Research Center of Guangdong Province, Guangzhou, China
| | - Xin-Yu Peng
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, China.,Key Laboratory of Livestock Disease Prevention of Guangdong Province, Guangzhou, China.,Scientific Observing and Experimental Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture, Guangzhou, China.,Chinese Traditional Medicine Engineering Technology Research Center of Guangdong Province, Guangzhou, China
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45
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Lee Y, Kim WH, Lee SJ, Lillehoj HS. Detection of chicken interleukin-10 production in intestinal epithelial cells and necrotic enteritis induced by Clostridium perfringens using capture ELISA. Vet Immunol Immunopathol 2018; 204:52-58. [DOI: 10.1016/j.vetimm.2018.10.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 09/21/2018] [Accepted: 10/09/2018] [Indexed: 10/28/2022]
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46
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Lee YS, Lee SH, Gadde UD, Oh ST, Lee SJ, Lillehoj HS. Allium hookeri supplementation improves intestinal immune response against necrotic enteritis in young broiler chickens. Poult Sci 2018. [PMID: 29538713 DOI: 10.3382/ps/pey031] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Three hundred birds (1 day old) were randomly assigned to 6 groups (n = 50 birds/treatment) and fed a basal diet (control) or basal diet supplemented with Allium hookeri (AH) root (1 or 3%). At day 14, half of the birds in each group were orally challenged with E. maxima 41A (1 × 104 cells/chicken), followed by C. perfringens infection (1 × 109 cfu/chicken) on day 18. Necrotic enteritis (NE)-associated infections and intestinal immune response were assessed by average body weight gain, lesion score, and oocyst shedding. The effect of dietary supplementation, AH, on transcript levels of pro-inflammatory cytokines, and tight junction proteins and mucin protein in the jejunum, were quantified by quantitative real-time (qRT)-PCR. At day 20, birds fed with diet supplementation (3% of AH) significantly weighted more than the control group. Although the NE-challenged had significantly reduced average body weight gain, there was no significance in the effect between diet × NE-challenge interactions on the average body weight gain. Among the NE-challenged groups, gut lesion score and oocyst shedding were significantly decreased in birds given AH (1 or 3%) compared to the control group. There was a correlation between diet and NE infection with regards to interleukin (IL)-17A, and inducible nitric oxide synthase (iNOS). The up-regulated transcript levels of cytokines IL-8, IL-17A, iNOS, and LITAF by NE challenged groups were significantly reduced by AH (1 or 3%) supplementation. Down-regulated expression levels of tight junction (TJ) proteins: junctional adhesion molecule 2 (JAM2), occluding, and intestinal mucin 2 (MUC2) by NE challenge, was up-regulated by the addition of AH (1 or 3%) supplementation. All TJ proteins (JAM2, ZO1, Ocluddin and MUC2) in the jejunum had a significant diet × NE-challenge interaction. These findings demonstrate that dietary supplementation of AH in chicken feed could be beneficially used to improve chicken health against NE.
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Affiliation(s)
- Y S Lee
- Animal Bioscience and Biotechnology Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, United States Department of Agriculture, Beltsville, MD, USA.,College of Animal Life Sciences, Kangwon National University, Chuncheon, 200-701, South Korea
| | - S H Lee
- National Institute of Agricultural Sciences, Rural Department Administration, 166, Nongsaengmyeong-ro, Isoe-Myeon, Wanju-Gun, Jeollabuk-do, South Korea
| | - U D Gadde
- Animal Bioscience and Biotechnology Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, United States Department of Agriculture, Beltsville, MD, USA
| | - S T Oh
- Animal Bioscience and Biotechnology Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, United States Department of Agriculture, Beltsville, MD, USA
| | - S J Lee
- College of Animal Life Sciences, Kangwon National University, Chuncheon, 200-701, South Korea
| | - H S Lillehoj
- Animal Bioscience and Biotechnology Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, United States Department of Agriculture, Beltsville, MD, USA
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47
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Pu J, Chen D, Tian G, He J, Zheng P, Mao X, Yu J, Huang Z, Zhu L, Luo J, Luo Y, Yu B. Protective Effects of Benzoic Acid, Bacillus Coagulans, and Oregano Oil on Intestinal Injury Caused by Enterotoxigenic Escherichia coli in Weaned Piglets. BIOMED RESEARCH INTERNATIONAL 2018; 2018:1829632. [PMID: 30225247 PMCID: PMC6129782 DOI: 10.1155/2018/1829632] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 08/05/2018] [Accepted: 08/09/2018] [Indexed: 12/19/2022]
Abstract
The use of antibiotics as growth promoters in feed has been fully or partially banned in several countries. The objective of this study was to investigate the effects of benzoic acid (A), bacillus coagulans (B) and oregano oil (O) combined supplementation on growth performance and intestinal barrier in piglets challenged with enterotoxigenic Escherichia coli (ETEC). Thirty piglets were randomly assigned to 6 treatments: (1) nonchallenged control (CON); (2) ETEC-challenged control (ETEC); (3) antibiotics + ETEC (AT); (4) A + B + ETEC (AB); (5) A + O + ETEC (AO); (6) A + B + O + ETEC (ABO). On day 22, piglets were orally challenged with ETEC or saline. The trial lasted 26 days. Dietary AO and ABO inhibited the reduction of growth performance and the elevation of diarrhoea incidence in piglets induced by ETEC (P<0.05). AB, AO, and ABO prevented the elevation of serum TNF-α and LPS concentrations in piglets induced by ETEC (P<0.05). ABO alleviated the elevation of TNF-α and IL-1β concentrations and the reduction of sIgA level in jejunal mucosa induced by ETEC (P<0.05). Furthermore, ABO upregulated mRNA expressions of Claudin-1 and Mucin2 (P<0.05), downregulated mRNA abundances of TLR4 and NOD2 signaling pathways related genes in jejunal mucosa (P<0.05), and improved the microbiota in jejunal and cecal digesta (P<0.05) compared with ETEC group. These results indicated that benzoic acid, bacillus coagulans, and oregano oil combined supplementation could improve growth performance and alleviate diarrhoea of piglets challenged with ETEC via improving intestinal mucosal barrier integrity, which was possibly associated with the improvement of intestinal microbiota and immune status. The combination of 3000 g/t benzoic acid + 400 g/t bacillus coagulans + 400 g/t oregano oil showed better effects than other treatments in improving growth performance and intestinal health of piglets, which could be used as a viable substitute for antibiotic.
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Affiliation(s)
- Junning Pu
- Key Laboratory of Animal Disease-Resistance Nutrition, Animal Nutrition Institute, Sichuan Agricultural University, 46# Xinkang Road, Yucheng District, Yaan, Sichuan 625014, China
| | - Daiwen Chen
- Key Laboratory of Animal Disease-Resistance Nutrition, Animal Nutrition Institute, Sichuan Agricultural University, 46# Xinkang Road, Yucheng District, Yaan, Sichuan 625014, China
| | - Gang Tian
- Key Laboratory of Animal Disease-Resistance Nutrition, Animal Nutrition Institute, Sichuan Agricultural University, 46# Xinkang Road, Yucheng District, Yaan, Sichuan 625014, China
| | - Jun He
- Key Laboratory of Animal Disease-Resistance Nutrition, Animal Nutrition Institute, Sichuan Agricultural University, 46# Xinkang Road, Yucheng District, Yaan, Sichuan 625014, China
| | - Ping Zheng
- Key Laboratory of Animal Disease-Resistance Nutrition, Animal Nutrition Institute, Sichuan Agricultural University, 46# Xinkang Road, Yucheng District, Yaan, Sichuan 625014, China
| | - Xiangbing Mao
- Key Laboratory of Animal Disease-Resistance Nutrition, Animal Nutrition Institute, Sichuan Agricultural University, 46# Xinkang Road, Yucheng District, Yaan, Sichuan 625014, China
| | - Jie Yu
- Key Laboratory of Animal Disease-Resistance Nutrition, Animal Nutrition Institute, Sichuan Agricultural University, 46# Xinkang Road, Yucheng District, Yaan, Sichuan 625014, China
| | - Zhiqing Huang
- Key Laboratory of Animal Disease-Resistance Nutrition, Animal Nutrition Institute, Sichuan Agricultural University, 46# Xinkang Road, Yucheng District, Yaan, Sichuan 625014, China
| | - Ling Zhu
- Key Laboratory of Animal Biotechnology Center of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan, 611134, China
| | - Junqiu Luo
- Key Laboratory of Animal Disease-Resistance Nutrition, Animal Nutrition Institute, Sichuan Agricultural University, 46# Xinkang Road, Yucheng District, Yaan, Sichuan 625014, China
| | - Yuheng Luo
- Key Laboratory of Animal Disease-Resistance Nutrition, Animal Nutrition Institute, Sichuan Agricultural University, 46# Xinkang Road, Yucheng District, Yaan, Sichuan 625014, China
| | - Bing Yu
- Key Laboratory of Animal Disease-Resistance Nutrition, Animal Nutrition Institute, Sichuan Agricultural University, 46# Xinkang Road, Yucheng District, Yaan, Sichuan 625014, China
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48
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Lillehoj H, Liu Y, Calsamiglia S, Fernandez-Miyakawa ME, Chi F, Cravens RL, Oh S, Gay CG. Phytochemicals as antibiotic alternatives to promote growth and enhance host health. Vet Res 2018; 49:76. [PMID: 30060764 PMCID: PMC6066919 DOI: 10.1186/s13567-018-0562-6] [Citation(s) in RCA: 185] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 01/02/2018] [Indexed: 01/14/2023] Open
Abstract
There are heightened concerns globally on emerging drug-resistant superbugs and the lack of new antibiotics for treating human and animal diseases. For the agricultural industry, there is an urgent need to develop strategies to replace antibiotics for food-producing animals, especially poultry and livestock. The 2nd International Symposium on Alternatives to Antibiotics was held at the World Organization for Animal Health in Paris, France, December 12-15, 2016 to discuss recent scientific developments on strategic antibiotic-free management plans, to evaluate regional differences in policies regarding the reduction of antibiotics in animal agriculture and to develop antibiotic alternatives to combat the global increase in antibiotic resistance. More than 270 participants from academia, government research institutions, regulatory agencies, and private animal industries from >25 different countries came together to discuss recent research and promising novel technologies that could provide alternatives to antibiotics for use in animal health and production; assess challenges associated with their commercialization; and devise actionable strategies to facilitate the development of alternatives to antibiotic growth promoters (AGPs) without hampering animal production. The 3-day meeting consisted of four scientific sessions including vaccines, microbial products, phytochemicals, immune-related products, and innovative drugs, chemicals and enzymes, followed by the last session on regulation and funding. Each session was followed by an expert panel discussion that included industry representatives and session speakers. The session on phytochemicals included talks describing recent research achievements, with examples of successful agricultural use of various phytochemicals as antibiotic alternatives and their mode of action in major agricultural animals (poultry, swine and ruminants). Scientists from industry and academia and government research institutes shared their experience in developing and applying potential antibiotic-alternative phytochemicals commercially to reduce AGPs and to develop a sustainable animal production system in the absence of antibiotics.
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Affiliation(s)
- Hyun Lillehoj
- Animal Biosciences and Biotechnology Laboratory, Agricultural Research Service, US Department of Agriculture, Beltsville, MD 20705 USA
| | - Yanhong Liu
- University of California, Davis, CA 95616 USA
| | - Sergio Calsamiglia
- Animal Nutrition and Welfare Service, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Mariano E. Fernandez-Miyakawa
- Instituto de Patobiología, Centro Nacional de Investigaciones Agropecuarias, Instituto Nacional de Tecnología Agropecuaria, Calle Las Cabañas y Los Reseros s/n, Casilla de Correo 25, Castelar, 1712 Buenos Aires, Argentina
| | - Fang Chi
- Amlan International, Chicago, IL 60611 USA
| | | | - Sungtaek Oh
- Animal Biosciences and Biotechnology Laboratory, Agricultural Research Service, US Department of Agriculture, Beltsville, MD 20705 USA
| | - Cyril G. Gay
- National Program Staff-Animal Health, Agricultural Research Service, US Department of Agriculture, Beltsville, MD 20705 USA
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49
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Patra AK, Amasheh S, Aschenbach JR. Modulation of gastrointestinal barrier and nutrient transport function in farm animals by natural plant bioactive compounds – A comprehensive review. Crit Rev Food Sci Nutr 2018; 59:3237-3266. [DOI: 10.1080/10408398.2018.1486284] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Amlan Kumar Patra
- Institute of Veterinary Physiology, Freie Universität Berlin, Oertzenweg 19b, Berlin, Germany
- Institute of Animal Nutrition, West Bengal University of Animal and Fishery Sciences, 37 K. B. Sarani, Belgachia, Kolkata, India
| | - Salah Amasheh
- Institute of Veterinary Physiology, Freie Universität Berlin, Oertzenweg 19b, Berlin, Germany
| | - Jörg Rudolf Aschenbach
- Institute of Veterinary Physiology, Freie Universität Berlin, Oertzenweg 19b, Berlin, Germany
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50
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Paulsen TR, Stiller S, Weber K, Donath C, Schreiband G, Jensen KH. A 90-day toxicity and genotoxicity study with high-purity phenylcapsaicin. TOXICOLOGY RESEARCH AND APPLICATION 2018. [DOI: 10.1177/2397847318773060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
To evaluate the safety of the synthetic capsaicin analogue phenylcapsaicin (PheCap; 7-phenylhept-6-yne-acid-hydroxy-3-mathoxylbenzylamide, CAS no 848127-67-3), a 90-day repeated dose oral gavage of 0, 30, 100 or 250 mg/kg body weight (bw)/day toxicity study with a 28-day recovery period was conducted using Wistar rats. Examinations of clinical signs, body and organ weight, haematology, urinalysis, clinical chemistry, food consumption and macroscopic, as well as histopathological tissue examinations were carried out for signs of toxicity. Degenerative, but reversible changes in the liver at 250 mg/kg bw/day, and local irritating effects in the stomach at 100 and 250 mg/kg bw/day were found. These findings were associated with test item-related clinical symptoms, that is, diarrhoea, salivation and moving of bedding material. PheCap did neither cause gene mutations by base pair changes or frame shifts in the genome of the tester stains Salmonella typhimurium TA 98, TA 100, TA 1535, TA 1537 or TA 102 nor induce structural and/or numerical chromosomal damage in human lymphocytes. Therefore, it can be concluded that PheCap is not genotoxic. The No Observed Adverse Effect Level (NOAEL) of PheCap for systemic toxicity is considered to be at 100 mg/kg bw/day which is based on degenerative changes in the liver. Due to irritating effects in the stomach, the NOAEL for local effects was established at 30 mg/kg bw/day.
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Affiliation(s)
| | | | | | - Claudia Donath
- Eurofins BioPharma Product Testing Munich GmbH, Planegg, Germany
| | | | - Knut Helge Jensen
- Department of Biological Sciences, University of Bergen, Bergen, Norway
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