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Kim JH. Determination of safe levels and toxic levels for feed hazardous materials in broiler chickens: a review. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2023; 65:490-510. [PMID: 37332288 PMCID: PMC10271926 DOI: 10.5187/jast.2023.e26] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/26/2023] [Accepted: 02/28/2023] [Indexed: 06/20/2023]
Abstract
Feed safety is needed to produce and provide safe animal feeds for consumers, animals, and the environment. Although feed safety regulations have been set for each country, there is a lack of clear feed safety regulations for each livestock. Feed safety regulations are mainly focused on heavy metals, mycotoxins, and pesticides. Each country has different safe levels of hazardous materials in diets. Safe levels of hazardous materials in diets are mostly set for mixed diets of general livestock. Although there is a difference in the metabolism of toxic materials among animals, the safe level of feed is not specific for individual animals. Therefore, standardized animal testing methods and toxicity studies for each animal are needed to determine the correct safe and toxic levels of hazardous materials in diets. If this goal is achieved, it will be possible to improve livestock productivity, health, and product safety by establishing appropriate feed safety regulations. It will also provide an opportunity to secure consumer confidence in feed and livestock products. Therefore, it is necessary to establish a scientific feed safety evaluation system suitable for each country's environment. The chance of outbreaks of new hazardous materials is increasing. Thus, to set up appropriate toxic levels or safe levels in feed, various toxicity methods have been used to determine toxic levels of hazardous materials for humans and animals. Appropriate toxic testing methods should be developed and used to accurately set up and identify toxicity and safe levels in food and feed.
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Affiliation(s)
- Jong Hyuk Kim
- Department of Animal Science, Chungbuk National University, Cheongju 28644, Korea
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Liu M, Zhou J, Li Y, Ding Y, Lian J, Dong Q, Qu Q, Lv W, Guo S. Effects of dietary polyherbal mixtures on growth performance, antioxidant capacity, immune function and jejunal health of yellow-feathered broilers. Poult Sci 2023; 102:102714. [PMID: 37172360 DOI: 10.1016/j.psj.2023.102714] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 04/06/2023] [Accepted: 04/09/2023] [Indexed: 05/14/2023] Open
Abstract
This study aimed to investigate the effects of polyherbal mixtures (PHM) on growth performance, antioxidant capacities, immune function, and intestinal health in yellow-feathered broilers. PHM is composed of five traditional Chinese medicine herbs (Portulaca oleracea L., Radix Sophora flavescens, Thalictrum glandulosissimum, Terra flava usta, and Pogostemon cablin). A total of 270 one-day-old yellow-feathered broilers were randomly allotted into 3 treatments for a 42-d feeding trial, each with 6 replicates of 15 birds. The dietary treatments consisted of a basal diet (CON), a basal diet supplemented with 50 mg/kg chlortetracycline (CTC), and a basal diet supplemented with 1000 mg/kg PHM. The results showed that dietary PHM supplementation increased body weight, ADG, and decreased F/G compared to the CON. PHM also increased spleen index and mRNA expression of IL-4 (d 21), and thymus index, serum IgA (d 42) and IgG, IL-4 and sIgA in jejunal mucosa (d 21 and 42), but decreased serum IFN-γ and mRNA expression of IFN-γ (d 21 and 42). In addition, PHM increased serum SOD, GSH-Px (d 21 and 42) and T-AOC (d 42), but decreased the content of serum MDA (d 21), the up-regulated mRNA expression of GSH-Px, CAT (d 21), SOD and CAT (d 42). Furthermore, PHM also improved the intestinal epithelial barrier indicators by the up-regulated mRNA expression of CLDN-1, OCLN (d 21 and 42) and ZO-1 (d 21), and the increased of villus height and villus height to crypt depth in jejunum (d 42). The high-throughput sequencing results showed that dietary PHM supplementation increased the alpha diversity and relative abundance of Oscillospira and Ruminococcus (d 21) and Lactobacillus (d 42), whereas decreasing that of Enterococcus (d 21) compared with CON. PICRUSt analysis revealed that metabolic pathways of carbohydrate, energy, lipid, cofactors, and vitamins were significantly enriched in the PHM group. Spearman's correlation analysis revealed that the genera Lactobacillus, Enterococcus, Ruminococcus, Oscillospira, and Faecalibacterium were related to growth performance, intestinal integrity, immune-related factors, antioxidant indices, and tight junction proteins. In conclusion, the results indicated that dietary PHM supplementation improved growth performance and immune status of yellow-feathered broilers by enhancing antioxidant capacities, barrier function, and modulated jejunal microbial communities. PHM used in our study has the potential to replace prophylactic antibiotic use in poultry production systems.
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Affiliation(s)
- Mengjie Liu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, People's Republic of China
| | - Jing Zhou
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, People's Republic of China
| | - Yue Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, People's Republic of China
| | - Yiqing Ding
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, People's Republic of China
| | - Jiale Lian
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, People's Republic of China
| | - Qi Dong
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, People's Republic of China
| | - Qian Qu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, People's Republic of China
| | - Weijie Lv
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, People's Republic of China
| | - Shining Guo
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, People's Republic of China; Guangdong Technology Research center for Traditional Chinese Veterinary Medicine and Natural Medicine, Guangzhou, People's Republic of China.
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Sholikin MM, Sadarman, Irawan A, Sofyan A, Jayanegara A, Rumhayati B, Hidayat C, Adli DN, Julendra H, Herdian H, Manzila I, Hudaya MF, Harahap MA, Qomariyah N, Budiarto R, Krisnan R, Asmarasari SA, Hayanti SY, Wahyono T, Priyatno TP, Ujilestari T, Negara W, Wulandari W, Nahrowi N. A meta-analysis of the effects of clay mineral supplementation on alkaline phosphatase, broiler health, and performance. Poult Sci 2023; 102:102456. [PMID: 36736058 PMCID: PMC10014353 DOI: 10.1016/j.psj.2022.102456] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 12/20/2022] [Accepted: 12/25/2022] [Indexed: 12/31/2022] Open
Abstract
The crucial constraint in the broiler production sector is feed efficiency; many feed additives have been widely employed to increase broiler growth. Nonetheless, some of these substances exacerbate health and animal-based food product safety concerns. This meta-analysis examines the effect of clay minerals on alkaline phosphatase (ALP), broiler health, and performance. Metadata was constructed from 369 data items that were harvested from 86 studies. The addition of clay minerals was set as a fixed effect and the difference between experiments was established as a random effect. The metadata were fitted using a linear mixed model. Due to the presence of clay minerals, growth performance as assessed by body weight (BW), average daily gain (ADG), and performance efficiency index (PEI) increased significantly (P < 0.01). In the total period, the increases of BW, ADG, and PEI were 4.12 g, 0.0714 g/d, and 0.648, respectively, per unit of clay minerals added. Clay minerals did not affect blood serum parameters (e.g., ALP and calcium). The IgA and IgM concentrations in the jejunum and ileum were significantly greater (P < 0.01) in the starter phase. Among clay minerals, broilers fed diets with aluminosilicate, halloysite, kaolin, and zeolite consistently exhibited higher (P < 0.05) BW, ADG, PEI, and lower feed conversion ratio (P < 0.05) in the finisher phase. Aluminosilicate was the only clay that increased (P < 0.05) secretory IgA concentration in both jejunum and ileum. In conclusion, clay minerals could be used as a growth promoter, especially during the finisher phase, without adversely affecting feed intake, liver function, and mineral metabolism in broiler chickens. Aluminosilicate was superior in improving the mucosal immunity status of broiler chickens.
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Affiliation(s)
- Mohammad Miftakhus Sholikin
- Research Center for Animal Husbandry, Research Organization for Agriculture and Food, National Research and Innovation Agency (BRIN), Bogor 16915, Indonesia; Animal Feed and Nutrition Modelling (AFENUE) Research Group, IPB University, Bogor 16680, Indonesia; Meta-Analysis in Plant Science (MAPS) Research Group, Bandung 40621, Indonesia; Center for Tropical Animal Studies (CENTRAS), The Institute of Research and Community Empowerment of IPB (LPPM IPB), Bogor 16680, Indonesia.
| | - Sadarman
- Department of Animal Science, State Islamic University of Sultan Syarif Kasim Riau, Pekanbaru 28293, Indonesia; Animal Feed and Nutrition Modelling (AFENUE) Research Group, IPB University, Bogor 16680, Indonesia
| | - Agung Irawan
- Vocational School, Universitas Sebelas Maret, Surakarta 57126, Indonesia; Department of Animal and Rangeland Sciences, Oregon State University, Corvallis 97331, OR, USA; Animal Feed and Nutrition Modelling (AFENUE) Research Group, IPB University, Bogor 16680, Indonesia
| | - Ahmad Sofyan
- Research Center for Animal Husbandry, Research Organization for Agriculture and Food, National Research and Innovation Agency (BRIN), Bogor 16915, Indonesia; Animal Feed and Nutrition Modelling (AFENUE) Research Group, IPB University, Bogor 16680, Indonesia
| | - Anuraga Jayanegara
- Department of Nutrition and Feed Technology, Faculty of Animal Science, IPB University, Bogor 16680, Indonesia; Animal Feed and Nutrition Modelling (AFENUE) Research Group, IPB University, Bogor 16680, Indonesia
| | - Barlah Rumhayati
- Chemistry Department, Faculty of Science, Brawijaya University, Malang 65145, Indonesia
| | - Cecep Hidayat
- Research Center for Animal Husbandry, Research Organization for Agriculture and Food, National Research and Innovation Agency (BRIN), Bogor 16915, Indonesia; Animal Feed and Nutrition Modelling (AFENUE) Research Group, IPB University, Bogor 16680, Indonesia
| | - Danung Nur Adli
- Feed and Animal Nutrition Department, Faculty of Animal Science, Universitas Brawijaya, Malang 65145, Indonesia; Animal Feed and Nutrition Modelling (AFENUE) Research Group, IPB University, Bogor 16680, Indonesia
| | - Hardi Julendra
- Research Center for Animal Husbandry, Research Organization for Agriculture and Food, National Research and Innovation Agency (BRIN), Bogor 16915, Indonesia
| | - Hendra Herdian
- Research Center for Animal Husbandry, Research Organization for Agriculture and Food, National Research and Innovation Agency (BRIN), Bogor 16915, Indonesia; Animal Feed and Nutrition Modelling (AFENUE) Research Group, IPB University, Bogor 16680, Indonesia
| | - Ifa Manzila
- Research Center for Horticultural and Estate Corps, Research Organization for Agriculture and Food, National Research and Innovation Agency (BRIN), Bogor 16915, Indonesia
| | - Mohammad Firdaus Hudaya
- Research Center for Animal Husbandry, Research Organization for Agriculture and Food, National Research and Innovation Agency (BRIN), Bogor 16915, Indonesia
| | - Muhammad Ainsyar Harahap
- Research Center for Animal Husbandry, Research Organization for Agriculture and Food, National Research and Innovation Agency (BRIN), Bogor 16915, Indonesia
| | - Novia Qomariyah
- Research Center for Animal Husbandry, Research Organization for Agriculture and Food, National Research and Innovation Agency (BRIN), Bogor 16915, Indonesia; Animal Feed and Nutrition Modelling (AFENUE) Research Group, IPB University, Bogor 16680, Indonesia
| | - Rahmat Budiarto
- Department of Agronomy, Faculty of Agriculture, Universitas Padjadjaran, Jatinangor Sumedang 45363, Indonesia; Meta-Analysis in Plant Science (MAPS) Research Group, Bandung 40621, Indonesia
| | - Rantan Krisnan
- Research Center for Animal Husbandry, Research Organization for Agriculture and Food, National Research and Innovation Agency (BRIN), Bogor 16915, Indonesia; Animal Feed and Nutrition Modelling (AFENUE) Research Group, IPB University, Bogor 16680, Indonesia
| | - Santiananda Arta Asmarasari
- Research Center for Animal Husbandry, Research Organization for Agriculture and Food, National Research and Innovation Agency (BRIN), Bogor 16915, Indonesia
| | - Sari Yanti Hayanti
- Research Center for Animal Husbandry, Research Organization for Agriculture and Food, National Research and Innovation Agency (BRIN), Bogor 16915, Indonesia
| | - Teguh Wahyono
- Research Center for Food Technology and Processing, National Research and Innovation Agency (BRIN), Research Organization for Agriculture and Food, Gunungkidul 55861, Indonesia; Animal Feed and Nutrition Modelling (AFENUE) Research Group, IPB University, Bogor 16680, Indonesia
| | - Tri Puji Priyatno
- Research Center for Animal Husbandry, Research Organization for Agriculture and Food, National Research and Innovation Agency (BRIN), Bogor 16915, Indonesia
| | - Tri Ujilestari
- Research Center for Food Technology and Processing, National Research and Innovation Agency (BRIN), Research Organization for Agriculture and Food, Gunungkidul 55861, Indonesia
| | - Windu Negara
- Research Center for Animal Husbandry, Research Organization for Agriculture and Food, National Research and Innovation Agency (BRIN), Bogor 16915, Indonesia
| | - Wulandari Wulandari
- Research Center for Animal Husbandry, Research Organization for Agriculture and Food, National Research and Innovation Agency (BRIN), Bogor 16915, Indonesia
| | - Nahrowi Nahrowi
- Department of Nutrition and Feed Technology, Faculty of Animal Science, IPB University, Bogor 16680, Indonesia; Center for Tropical Animal Studies (CENTRAS), The Institute of Research and Community Empowerment of IPB (LPPM IPB), Bogor 16680, Indonesia
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Du M, Chen Y, Wang S, Zhao H, Wen C, Zhou Y. Effects of dietary palygorskite supplementation on the growth performance, oxidative status, immune function, intestinal barrier and cecal microbial community of broilers. Front Microbiol 2022; 13:985784. [PMID: 36090069 PMCID: PMC9453597 DOI: 10.3389/fmicb.2022.985784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 08/09/2022] [Indexed: 11/13/2022] Open
Abstract
The present study aimed to investigate the effects of palygorskite (PAL) as an alternative to antibiotic on the growth performance, oxidative status, immune function, intestinal barrier and cecal microbial community of broilers. A total of 360 1-day-old male Ross-308 broilers were randomly allotted to three treatments with eight replicates. Broilers in the three groups were designated as follows: basal diet (CON group), basal diet+50 mg/kg chlorotetracycline (ANT group), and basal diet+ 10 g/kg PAL (PAL group). Supplementing PAL reduced feed to gain ratio in broilers during 22 to 42 days of age (P < 0.05), with its value being similar to that of the ANT group (P > 0.05). Broilers fed a PAL-supplemented diet exerted decreased contents of interferon-γ (IFN-γ) and interleukin-1β in serum, and the same reduction was found in jejunal IFN-γ level, when compared to the CON group (P < 0.05). Moreover, compared with the CON group, broilers after PAL treatment had a lower malondialdehyde content in jejunal mucosa (P < 0.05). Supplementing PAL elevated jejunal villus height (VH) and ratio of VH to crypt depth compared with the ANT group (P < 0.05). Cecal microbiota communities among the three groups were significant different, as demonstrated by distinct clusters from partial least squares discriminant analysis, although dietary treatments had no significant effects on the bacterial richness and diversity indices (P > 0.05). At genus level, the addition of PAL increased the relative abundance of norank_f__Barnesiellaceae and decreased that of unclassified_f__Oscillospiraceae in cecal digesta compared with those in the CON group (P < 0.05); the proportion of genus norank_f__Barnesiellaceae was increased by PAL treatment when compared with the ANT group (P < 0.05). Moreover, spearman's correlations showed that the modulation of cecal microflora composition by PAL supplementation was closely correlated with the promotion of growth performance (feed to gain ratio) and intestinal health-related (contents of malondialdehyde and IFN-γ, and VH value in jejunum) variables of broilers (P < 0.05). Taken together, dietary PAL could improve the growth performance, antioxidant capacity, and immune status, as well as intestinal barrier function in broilers, which might be partially associated with the alteration of cecal microbiota. Moreover, dietary PAL may be a promising alternative to antibiotic growth promoter for broilers.
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Madkour M, Salman FM, El-Wardany I, Abdel-Fattah SA, Alagawany M, Hashem NM, Abdelnour SA, El-Kholy MS, Dhama K. Mitigating the detrimental effects of heat stress in poultry through thermal conditioning and nutritional manipulation. J Therm Biol 2022; 103:103169. [PMID: 35027188 DOI: 10.1016/j.jtherbio.2021.103169] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 12/09/2021] [Accepted: 12/16/2021] [Indexed: 12/20/2022]
Abstract
The poultry industry faces several obstacles and challenges, including the changes in global temperature, increase in the per capita demand for meat and eggs, and the emergence and spread of various diseases. Among these, environmental challenges are one of the most severe hurdles impacting the growth and productivity of poultry. In particular, the increasing frequency and severity of heat waves over the past few years represent a major challenge, and this is expected to worsen in the coming decades. Chickens are highly susceptible to high ambient temperatures (thermal stress), which negatively affect their growth and productivity, leading to enormous economic losses. In the light of global warming, these losses are expected to increase in the near future. Specifically, the worsening of climate change and the rise in global temperatures have augmented the adverse effects of heat on poultry production worldwide. At present, the world population is approximately 7.9 billion, and it has been predicted to reach 9.3 billion by 2050 and approximately 11 billion by 2100, implying a great demand for protein supply; therefore, strategies to mitigate future poultry challenges must be urgently devised. To date, several mitigation measures have been adopted to minimize the negative effects of heat stress in poultry. Of these, thermal acclimation at the postnatal stage or throughout the embryonic stages has been explored as a promising approach; however, for large-scale application, this approach warrants further investigation to determine the suitable temperature and poultry age. Moreover, molecular mechanisms governing thermal conditioning are poorly understood. To this end, we sought to expand our knowledge of thermal conditioning in poultry, which may serve as a valuable reference to improve the thermotolerance of chickens via nutritional management and vitagene regulation. Vitagenes regulate the responses of poultry to diverse stresses. In recent years, nutritionists have paid close attention to bioactive compounds such as resveratrol, curcumin, and quercetin administered alone or in combination. These compounds activate vitagenes and other regulators of the antioxidant defense system, such as nuclear factor-erythroid 2-related factor 2. Overall, thermal conditioning may be an effective strategy to mitigate the negative effects of heat stress. In this context, the present review synthesizes information on the adverse impacts of thermal stress, elucidating the molecular mechanisms underlying thermal conditioning and its effects on the acquisition of tolerance to acute heat stress in later life. Finally, the role of some polyphenolic compounds, such as resveratrol, curcumin, and quercetin, in attenuating heat stress through the activation of the antioxidant defense system in poultry are discussed.
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Affiliation(s)
- Mahmoud Madkour
- Animal Production Department, National Research Centre, Dokki, 12622, Giza, Egypt.
| | - Fatma M Salman
- Animal Production Department, National Research Centre, Dokki, 12622, Giza, Egypt
| | - Ibrahim El-Wardany
- Poultry Production Department, Faculty of Agriculture, Ain Shams University, Shoubra El-Kheima, 11241, Cairo, Egypt
| | - Sayed A Abdel-Fattah
- Poultry Production Department, Faculty of Agriculture, Ain Shams University, Shoubra El-Kheima, 11241, Cairo, Egypt
| | - Mahmoud Alagawany
- Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Nesrein M Hashem
- Department of Animal and Fish Production, Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria, 21545, Egypt
| | - Sameh A Abdelnour
- Department of Animal Production, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt
| | - Mohamed S El-Kholy
- Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Kuldeep Dhama
- Division of Pathology, Indian Veterinary Research Institute (IVRI), Izatnagar, Bareilly, 243 122, Uttar Pradesh, India
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Zhang C, Yao D, Su Z, Chen H, Hao P, Liao Y, Guo Y, Yang D. Copper/Zinc-Modified Palygorskite Protects Against Salmonella Typhimurium Infection and Modulates the Intestinal Microbiota in Chickens. Front Microbiol 2021; 12:739348. [PMID: 34956111 PMCID: PMC8696032 DOI: 10.3389/fmicb.2021.739348] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 11/04/2021] [Indexed: 12/26/2022] Open
Abstract
Palygorskite (Pal), a clay nanoparticle, has been demonstrated to be a vehicle for drug delivery. Copper has antibacterial properties, and zinc is an essential micronutrient for intestinal health in animals and humans. However, whether copper/zinc-modified Pal (Cu/Zn-Pal) can protect chickens from Salmonella enterica subsp. enterica serovar Typhimurium (S. Typhimurium) infection remains unclear. In this study, three complexes (Cu/Zn-Pal-1, Cu/Zn-Pal-2, and Cu/Zn-Pal-3) were prepared, and Cu/Zn-Pal-1 was shown to be the most effective at inhibiting the growth of S. Typhimurium in vitro, whereas natural Pal alone had no inhibitory effect. In vivo, Cu/Zn-Pal-1 reduced S. Typhimurium colonization in the intestine of infected chickens and relieved S. Typhimurium-induced organ and intestinal mucosal barrier damage. Moreover, this reduction in Salmonella load attenuated intestinal inflammation and the oxidative stress response in challenged chickens. Additionally, Cu/Zn-Pal-1 modulated the intestinal microbiota in infected chickens, which was characterized by the reduced abundance of Firmicutes and the increased abundance of Proteobacteria and Bacteroidetes. Our results indicated that the Cu/Zn-Pal-1 complex may be an effective feed supplement for reducing S. Typhimurium colonization of the gut.
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Affiliation(s)
- Chaozheng Zhang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Dawei Yao
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Zenan Su
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Huan Chen
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Pan Hao
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Yun Liao
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Yiwen Guo
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Deji Yang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
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Modified Palygorskite Improves Immunity, Antioxidant Ability, Intestinal Morphology, and Barrier Function in Broiler Chickens Fed Naturally Contaminated Diet with Permitted Feed Concentrations of Fusarium Mycotoxins. Toxins (Basel) 2018; 10:toxins10110482. [PMID: 30463306 PMCID: PMC6267430 DOI: 10.3390/toxins10110482] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 11/14/2018] [Accepted: 11/14/2018] [Indexed: 12/24/2022] Open
Abstract
This study investigated effects of modified palygorskite (MPal) on immunity, antioxidant capacity, and intestinal barrier integrity in broiler chickens challenged with permitted feed Fusarium mycotoxin concentrations. One-day-old chicks were allocated into three treatments with eight replicates. Chickens in three groups were fed a basal diet with normal corn (control), contaminated diet containing moldy corn, with Fusarium mycotoxins contents in the diets lower than permitted feed mycotoxin concentrations, and the contaminated diet supplemented with 1 g/kg MPal for 42 days, respectively. Compared with control, moldy corn decreased bursa of Fabricius weight, jejunal secreted immunoglobulin A concentration, ileal superoxide dismutase (SOD) activity, jejunal and ileal villus height (VH) and VH/crypt depth (CD) ratio, and jejunal zonula occludens-1 and mucin 2 mRNA abundances at 42 days as well as ileal VH/CD ratio at 21 days; while they increased jejunal malondialdehyde accumulation at 21 and 42 days, jejunal SOD activity at 21 days, and serum diamine oxidase activity at 42 days, which were almost recovered by MPal. Moreover, dietary MPal upregulated ileal claudin-2 mRNA abundance compared with other two groups. The results indicated that MPal addition exerted protective effects on immunity, oxidative status, and intestinal barrier integrity in chickens challenged with permitted feed Fusarium mycotoxins levels.
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Cheng Y, Du M, Xu Q, Chen Y, Wen C, Zhou Y. Dietary mannan oligosaccharide improves growth performance, muscle oxidative status, and meat quality in broilers under cyclic heat stress. J Therm Biol 2018; 75:106-111. [DOI: 10.1016/j.jtherbio.2018.06.002] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 05/20/2018] [Accepted: 06/01/2018] [Indexed: 12/25/2022]
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