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Ahmad Fadzuli NI, Lim SM, Neoh CF, Majeed ABA, Tan MP, Khor HM, Tan AH, Ramasamy K. Faecal intestinal permeability and intestinal inflammatory markers in older adults with age-related disorders: A systematic review and meta-analysis. Ageing Res Rev 2024; 101:102506. [PMID: 39306247 DOI: 10.1016/j.arr.2024.102506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 08/30/2024] [Accepted: 09/12/2024] [Indexed: 09/28/2024]
Abstract
This systematic review and meta-analysis appraised previous findings to uncover potential faecal intestinal permeability and intestinal inflammatory markers in older adults. A comprehensive literature search led to the identification of ten eligible studies with findings of potential faecal intestinal permeability (zonulin and alpha-1-antitrypsin) and intestinal inflammatory markers [calprotectin, lactoferrin and neutrophil gelatinase-associated lipocalin (NGAL)]. Most of the cases (n > 2) [Parkinson's disease (PD) and Alzheimer's disease (AD)] exhibited higher faecal alpha-1-antitrypsin, zonulin and calprotectin levels. The present meta-analysis confirmed significantly higher faecal alpha-1-antitrypsin in older persons with PD compared to non-PD [MD = 22.92 mg/dL; 95 % CI = 14.02-31.81, p < 0.00001; I2 = 0 % (p = 0.73)]. There was, however, no significant difference in faecal zonulin between PD and non-PD individuals [MD = 26.88 ng/mL; 95 % CI = -29.26-83.01, p = 0.35; I2 = 94 % (p < 0.0001)]. Meanwhile, faecal calprotectin was higher in older adults with GI symptoms, multiple system atrophy (MSA) or PD than the healthy controls [MD = 9.51 μg/g; 95 % CI = 0.07-18.95, p = 0.05; I2 = 84 % (p < 0.00001)]. Altogether, faecal calprotectin appears to be a potential intestinal inflammatory marker whereas previous findings on faecal alpha-1-antitrypsin as an intestinal permeability marker remain limited and require further validation.
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Affiliation(s)
- Nurul Izzati Ahmad Fadzuli
- Collaborative Drug Discovery Research (CDDR) Group, Faculty of Pharmacy, Universiti Teknologi MARA (UiTM) Cawangan Selangor, Kampus Puncak Alam, Bandar Puncak Alam, Selangor Darul Ehsan 42300, Malaysia
| | - Siong Meng Lim
- Collaborative Drug Discovery Research (CDDR) Group, Faculty of Pharmacy, Universiti Teknologi MARA (UiTM) Cawangan Selangor, Kampus Puncak Alam, Bandar Puncak Alam, Selangor Darul Ehsan 42300, Malaysia
| | - Chin Fen Neoh
- Collaborative Drug Discovery Research (CDDR) Group, Faculty of Pharmacy, Universiti Teknologi MARA (UiTM) Cawangan Selangor, Kampus Puncak Alam, Bandar Puncak Alam, Selangor Darul Ehsan 42300, Malaysia
| | - Abu Bakar Abdul Majeed
- Brain Degeneration and Therapeutics Group, Faculty of Pharmacy, University Teknologi MARA (UiTM) Cawangan Selangor, Kampus Puncak Alam, Selangor Darul Ehsan, Selangor Darul Ehsan 42300, Malaysia
| | - Maw Pin Tan
- Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Hui Min Khor
- Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Ai Huey Tan
- Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Kalavathy Ramasamy
- Collaborative Drug Discovery Research (CDDR) Group, Faculty of Pharmacy, Universiti Teknologi MARA (UiTM) Cawangan Selangor, Kampus Puncak Alam, Bandar Puncak Alam, Selangor Darul Ehsan 42300, Malaysia.
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2
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Mantzios T, Kiousi DE, Brellou GD, Papadopoulos GA, Economou V, Vasilogianni M, Kanari E, Petridou E, Giannenas I, Tellez-Isaias G, Pappa A, Galanis A, Tsiouris V. Investigation of Potential Gut Health Biomarkers in Broiler Chicks Challenged by Campylobacter jejuni and Submitted to a Continuous Water Disinfection Program. Pathogens 2024; 13:356. [PMID: 38787208 PMCID: PMC11124259 DOI: 10.3390/pathogens13050356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 04/16/2024] [Accepted: 04/24/2024] [Indexed: 05/25/2024] Open
Abstract
The exploration of novel biomarkers to assess poultry health is of paramount importance, not only to enhance our understanding of the pathogenicity of zoonotic agents but also to evaluate the efficacy of novel treatments as alternatives to antibiotics. The present study aimed to investigate potential gut health biomarkers in broiler chicks challenged by Campylobacter jejuni and subjected to a continuous water disinfection program. A total of 144 one-day-old hatched broiler chicks were randomly allocated to four treatment groups with four replicates each, according to the following experimental design: Group A received untreated drinking water; Group B received drinking water treated with 0.01-0.05% v/v Cid 2000™ (hydrogen peroxide, acetic acid and paracetic acid); Group C was challenged by C. jejuni and received untreated drinking water; and Group D was challenged by C. jejuni and received drinking water treated with 0.01-0.05% v/v Cid 2000™. The use of Cid 2000™ started on day 1 and was applied in intervals until the end of the experiment at 36 days, while the C. jejuni challenge was applied on day 18. Potential biomarkers were investigated in serum, feces, intestinal tissue, intestinal content, and liver samples of broilers. Statistical analysis revealed significant increases (p < 0.001) in serum cortisol levels in C. jejuni-challenged broilers. Serum fluorescein isothiocyanate dextran (FITC-d) increased significantly (p = 0.004) in broilers challenged by C. jejuni and treated with drinking water disinfectant, while fecal ovotransferrin concentration also increased significantly (p < 0.001) in broilers that received the drinking water disinfectant alone. The gene expression levels of occludin (p = 0.003) and mucin-2 (p < 0.001) were significantly upregulated in broilers challenged by C. jejuni, while mucin-2 significantly increased in birds that were challenged and received the drinking water disinfectant (p < 0.001). TLR-4 expression levels were significantly (p = 0.013) decreased in both groups that received the drinking water disinfectant, compared to the negative control group. Finally, the C. jejuni challenge significantly increased (p = 0.032) the crypt depth and decreased (p = 0.021) the villus height-to-crypt-depth ratio in the ileum of birds, while the tested disinfectant product increased (p = 0.033) the villus height in the jejunum of birds. Furthermore, the counts of C. jejuni in the ceca of birds (p = 0.01), as well as its translocation rate to the liver of broilers (p = 0.001), were significantly reduced by the addition of the water disinfectant. This research contributes to novel insights into the intricate interplay of water disinfection and/or C. jejuni challenge with potential intestinal biomarkers. In addition, it emphasizes the need for continued research to unveil the underlying mechanisms, expands our understanding of broiler responses to these challenges and identifies breakpoints for further investigations.
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Affiliation(s)
- Tilemachos Mantzios
- Unit of Avian Medicine, Clinic of Farm Animals, School of Veterinary Medicine, Aristotle University of Thessaloniki, 546 27 Thessaloniki, Greece;
- Department of Molecular Biology and Genetics, Faculty of Health Sciences, Democritus University of Thrace, 68 100 Alexandroupolis, Greece; (D.E.K.); (E.K.); (A.P.); (A.G.)
| | - Despoina E. Kiousi
- Department of Molecular Biology and Genetics, Faculty of Health Sciences, Democritus University of Thrace, 68 100 Alexandroupolis, Greece; (D.E.K.); (E.K.); (A.P.); (A.G.)
| | - Georgia D. Brellou
- Laboratory of Pathology, School of Veterinary Medicine, Aristotle University of Thessaloniki, 546 27 Thessaloniki, Greece
| | - Georgios A. Papadopoulos
- Laboratory of Animal Husbandry, School of Veterinary Medicine, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece;
| | - Vangelis Economou
- Laboratory of Hygiene of Animal Food Products—Veterinary Public Health, School of Veterinary Medicine, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece;
| | - Marili Vasilogianni
- Pathobiology and Population Sciences, Royal Veterinary College, London NW1 0TU, UK;
| | - Elisavet Kanari
- Department of Molecular Biology and Genetics, Faculty of Health Sciences, Democritus University of Thrace, 68 100 Alexandroupolis, Greece; (D.E.K.); (E.K.); (A.P.); (A.G.)
| | - Evanthia Petridou
- Laboratory of Microbiology and Infectious Diseases, School of Veterinary Medicine, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece;
| | - Ilias Giannenas
- Laboratory of Nutrition, School of Veterinary Medicine, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece;
| | | | - Aglaia Pappa
- Department of Molecular Biology and Genetics, Faculty of Health Sciences, Democritus University of Thrace, 68 100 Alexandroupolis, Greece; (D.E.K.); (E.K.); (A.P.); (A.G.)
| | - Alex Galanis
- Department of Molecular Biology and Genetics, Faculty of Health Sciences, Democritus University of Thrace, 68 100 Alexandroupolis, Greece; (D.E.K.); (E.K.); (A.P.); (A.G.)
| | - Vasilios Tsiouris
- Unit of Avian Medicine, Clinic of Farm Animals, School of Veterinary Medicine, Aristotle University of Thessaloniki, 546 27 Thessaloniki, Greece;
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Horyanto D, Bajagai YS, Kayal A, von Hellens J, Chen X, Van TTH, Radovanović A, Stanley D. Bacillus amyloliquefaciens Probiotics Mix Supplementation in a Broiler Leaky Gut Model. Microorganisms 2024; 12:419. [PMID: 38399823 PMCID: PMC10892336 DOI: 10.3390/microorganisms12020419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 02/13/2024] [Accepted: 02/14/2024] [Indexed: 02/25/2024] Open
Abstract
The supplementation of antimicrobial growth promoters (AGPs) has been banned in many countries because of the emergence of antimicrobial-resistant pathogens in poultry products and the environment. Probiotics have been broadly studied and demonstrated as a promising AGP substitute. Our study is centred on the effects of a multi-strain Bacillus-based probiotic product on broiler production performance and gut microbial profile in a dexamethasone-induced leaky gut challenge. Two hundred and fifty-six broiler chicks were hatched and randomly assigned into four groups (wheat-soybean meal basal diet (BD) = non-supplemented control (C), BD supplemented with dexamethasone in week 4 (CD), BD containing a probiotic from day one (P), and BD containing a probiotic from day one and supplemented with dexamethasone during challenge week 4 (PD)). The production performance and caecal, gizzard, jejunal lumen and jejunal mucosa swab microbiota were studied by 16S rRNA gene sequencing. The Bacillus probiotic product significantly improved production performance and altered caecal gut microbiota (p ≤ 0.05), but no significant impact on microbiota was observed in other gut sections.
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Affiliation(s)
- Darwin Horyanto
- Institute for Future Farming Systems, Central Queensland University, Rockhampton, QLD 4702, Australia (A.K.)
- Bioproton Pty Ltd., Acacia Ridge, QLD 4110, Australia (X.C.)
| | - Yadav S. Bajagai
- Institute for Future Farming Systems, Central Queensland University, Rockhampton, QLD 4702, Australia (A.K.)
| | - Advait Kayal
- Institute for Future Farming Systems, Central Queensland University, Rockhampton, QLD 4702, Australia (A.K.)
| | | | - Xiaojing Chen
- Bioproton Pty Ltd., Acacia Ridge, QLD 4110, Australia (X.C.)
| | - Thi Thu Hao Van
- School of Science, RMIT University, Bundoora, VIC 3083, Australia
| | - Anita Radovanović
- Faculty of Veterinary Medicine, University of Belgrade, 11000 Belgrade, Serbia;
| | - Dragana Stanley
- Institute for Future Farming Systems, Central Queensland University, Rockhampton, QLD 4702, Australia (A.K.)
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Sujiyanto, White CS, Bauer LL, Dilger RN. The dual sugar test (lactulose plus mannitol) is an unreliable indicator of feed withdrawal-associated changes in intestinal permeability in broiler chickens. Poult Sci 2024; 103:103336. [PMID: 38103531 PMCID: PMC10765102 DOI: 10.1016/j.psj.2023.103336] [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: 11/08/2023] [Revised: 11/27/2023] [Accepted: 11/28/2023] [Indexed: 12/19/2023] Open
Abstract
Despite its importance in poultry research, there is lack of standardized and practical techniques to measure intestinal permeability in a noninvasive manner. Therefore, this research sought to standardize a procedure using lactulose (Lac) and mannitol (Man) to measure intestinal barrier function in broilers. Twenty-one-day-old male and female Ross 308 birds were orally gavaged (either 2 mL/kg BW or fixed 3 mL per bird) with a solution containing 5 to 25 g Lac and 1 to 5 g Man dissolved in pure water to reach 100 mL of final solution. Feed withdrawal (FW; 2-24-h duration) prior to dosing with Lac and Man (LacMan) was mainly used to induce graded intestinal permeability. Blood samples were collected at 60-, 90-, or 120-min after LacMan dosing using serum or plasma (K2EDTA and/or Na-Heparin) blood tubes. Lac and Man concentrations were quantified by HPLC. Plasma samples collected 90-min after LacMan dosing elicited the least variable response (22.4% vs. 22.8% or 23.4% CV when compared with 60- and 120-min sampling time-points, respectively), and both markers were detectable after administering a solution containing the lowest concentration of Lac and Man. However, analytical problems arose when using Na-Heparin anticoagulant as high glucose levels interfered with Lac quantification. Upon improving the chromatographic technique, it became evident that a 24-h FW increased (P < 0.01) Lac concentrations. In the last trial, a more severe glucose interference was observed, resulting in no Lac detection within an entire treatment group. Twelve hours of FW increased (P < 0.01) Man concentration in the plasma of birds receiving the solution containing 3 g Man, but had no effect on the birds receiving the solution containing 5 g Man. A 24-h FW did not affect the Man concentrations in birds receiving the solution containing either 3 or 5 g Man. With inconsistency of Lac detection throughout our trials, it was concluded that the combination of Lac and Man is an unreliable marker to predict intestinal barrier function in broilers.
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Affiliation(s)
- Sujiyanto
- Division of Nutritional Sciences, University of Illinois, Urbana, IL 61801, USA
| | - Cameron S White
- Department of Animal Sciences, University of Illinois, Urbana, IL 61801, USA
| | - Laura L Bauer
- Department of Animal Sciences, University of Illinois, Urbana, IL 61801, USA
| | - Ryan N Dilger
- Division of Nutritional Sciences, University of Illinois, Urbana, IL 61801, USA; Department of Animal Sciences, University of Illinois, Urbana, IL 61801, USA.
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Rysman K, Eeckhaut V, Ducatelle R, Van Immerseel F. The fecal biomarker ovotransferrin associates with broiler performance under field conditions. Poult Sci 2023; 102:103011. [PMID: 37657248 PMCID: PMC10480640 DOI: 10.1016/j.psj.2023.103011] [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: 08/02/2023] [Accepted: 08/04/2023] [Indexed: 09/03/2023] Open
Abstract
Broilers often suffer from subclinical intestinal health problems of ill-defined etiology, which have a negative impact on performance. Macroscopic and microscopic evaluations can be used to monitor intestinal health, but because these are subjective and time-consuming, respectively, objective and easy-to-measure biomarkers are urgently needed. Fecal biomarkers can potentially be used as noninvasive, objective measures to evaluate gut health in broilers. The aim of the current study was to evaluate ovotransferrin (OVT) as a biomarker in fecal/colonic samples derived from broilers from 27 industrial farms by investigating associations between OVT, broiler performance and gut histology parameters. Eight chickens per farm were randomly selected, weighed and euthanized on d 28 of the production round. A duodenal section was collected to measure the intestinal villus structure (villus length, crypt depth) and the inflammatory status of the gut (CD3+ T-lymphocytes area percentage). The coefficient of variation for the OVT (between farms; 83.45%, within farms; 95.13%) was high compared to the villus length (between farms; 10.91%, within farms; 15.48%), crypt depth (between farms; 15.91%, within farms; 14.10%), villus-to-crypt ratio (between farms; 22.08%, within farms; 20.53%), and CD3+ (between farms; 36.38%, within farms; 26.13%). At farm level, colonic OVT was significantly associated with the average slaughter weight (P = 0.005), daily weight gain (P = 0.007) and the European production index (EPI) (P = 0.009). At broiler level, significant associations were found between colonic OVT and the villus length (P = 0.044) and between the colonic OVT and villus-to-crypt ratio (P = 0.050). These results thus show that quantifying OVT in colon can have merit for evaluation of intestinal health in broilers under field conditions.
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Affiliation(s)
- Katrien Rysman
- Livestock gut health team (LiGHT) Ghent, Department of Pathobiology, Pharmacology and Zoological Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
| | - Venessa Eeckhaut
- Livestock gut health team (LiGHT) Ghent, Department of Pathobiology, Pharmacology and Zoological Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
| | - Richard Ducatelle
- Livestock gut health team (LiGHT) Ghent, Department of Pathobiology, Pharmacology and Zoological Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
| | - Filip Van Immerseel
- Livestock gut health team (LiGHT) Ghent, Department of Pathobiology, Pharmacology and Zoological Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium.
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Kikusato M, Toyomizu M. Mechanisms underlying the Effects of Heat Stress on Intestinal Integrity, Inflammation, and Microbiota in Chickens. J Poult Sci 2023; 60:2023021. [PMID: 37560151 PMCID: PMC10406517 DOI: 10.2141/jpsa.2023021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 07/11/2023] [Indexed: 08/11/2023] Open
Abstract
Poultry meat and egg production benefits from a smaller carbon footprint, as well as feed and water consumption, per unit of product, than other protein sources. Therefore, maintaining a sustainable production of poultry meat is important to meet the increasing global demand for this staple. Heat stress experienced during the summer season or in tropical/subtropical areas negatively affects the productivity and health of chickens. Crucially, its impact is predicted to grow with the acceleration of global warming. Heat stress affects the physiology, metabolism, and immune response of chickens, causing electrolyte imbalance, oxidative stress, endocrine disorders, inflammation, and immunosuppression. These changes do not occur independently, pointing to a systemic mechanism. Recently, intestinal homeostasis has been identified as an important contributor to nutrient absorption and the progression of systemic inflammation. Its mechanism of action is thought to involve neuroendocrine signaling, antioxidant response, the presence of oxidants in the diet, and microbiota composition. The present review focuses on the effect of heat stress on intestinal dysfunction in chickens and the underlying causative factors. Understanding these mechanisms will direct the design of strategies to mitigate the negative effect of heat stress, while benefiting both animal health and sustainable poultry production.
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Affiliation(s)
- Motoi Kikusato
- Animal Nutrition, Life Sciences, Graduate School of Agricultural Science,
Tohoku University, Sendai, Japan
| | - Masaaki Toyomizu
- Animal Nutrition, Life Sciences, Graduate School of Agricultural Science,
Tohoku University, Sendai, Japan
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An SH, Kong C. Effects of Different Feeding Durations on Ileum Length and Weight and Basal Endogenous Loss of Phosphorus in Broiler Chickens Fed a Phosphorus-Free Diet. Animals (Basel) 2023; 13:1787. [PMID: 37889741 PMCID: PMC10251934 DOI: 10.3390/ani13111787] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 05/15/2023] [Accepted: 05/23/2023] [Indexed: 10/29/2023] Open
Abstract
The study investigated the effects of feeding duration on the length and weight of the ileum, and basal endogenous loss (BEL) of phosphorus (P) on broiler chickens fed a P-free diet (PFD). A standard starter diet was fed to 384 birds for 15 days. On day 15, they were weighed and randomly allocated to one of three treatment groups in a randomized complete block design, with eight replicate cages per treatment and 16 birds per cage. The birds in each treatment group were fed the PFD for 2, 3, or 4 days. There was an increase in growth performance (p < 0.05) as the PFD feeding duration increased from 2 to 4 days. Although the relative dry weight of the ileum (mg/100 g of body weight) decreased linearly (p < 0.05) as the PFD feeding duration increased, the amount of dried ileal digesta (g/bird) was not affected. The BEL of P was 110.2, 128.2, and 133.6 mg/kg of dry matter intake in birds fed the PFD for 2, 3, and 4 days, respectively. Feeding a PFD to broiler chickens for 2, 3, or 4 days did not change P BEL.
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Affiliation(s)
- Su Hyun An
- Department of Animal Science and Biotechnology, Kyungpook National University, Sangju 37224, Republic of Korea;
| | - Changsu Kong
- Department of Animal Science and Biotechnology, Kyungpook National University, Sangju 37224, Republic of Korea;
- Department of Animal Science, Kyungpook National University, Sangju 37224, Republic of Korea
- Research Institute of Horse Industry, Kyungpook National University, Sangju 37224, Republic of Korea
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Xu H, Fu J, Luo Y, Li P, Song B, Lv Z, Guo Y. Effects of tannic acid on the immunity and intestinal health of broiler chickens with necrotic enteritis infection. J Anim Sci Biotechnol 2023; 14:72. [PMID: 37143114 PMCID: PMC10157989 DOI: 10.1186/s40104-023-00867-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 03/09/2023] [Indexed: 05/06/2023] Open
Abstract
BACKGROUND In broiler chickens, necrotic enteritis (NE) infection can reduce production performance. Tannic acid has shown great potential as a treatment of NE in broilers. However, the appropriate dosage of tannic acid in NE of broilers and the improvement effect on intestinal health are not very clear. In this study, we aimed to investigate the effects of different doses of tannic acid on the production performance, immunity, and intestinal health of broilers by constructing an NE model with C. perfringens infection and determining the appropriate dosage of tannic acid with regard to NE. RESULTS Challenged birds showed significant reduction in body weight, villus height, and the ratio of villus height to crypt depth (P < 0.05) and increase in the feed consumption gain ratio, intestinal lesion score, and crypt depth (P < 0.05). The infection significantly reduced the relative Bacteroidota and Ligilactobacillus abundance (P < 0.05) and increased the ratio of Firmicutes/Bacteroidota and cecal content of C. perfringens (P < 0.05). Challenged birds fed diets supplemented with tannic acid showed significantly increased mRNA expression of nutrient transport carriers and intestinal barrier genes and growth performance and reduced serum zonulin and endotoxin levels (P < 0.05). Addition of tannic acid to the diet inhibited the inflammatory response by reducing the number of coccidia oocysts in feces and the content of C. perfringens in the cecum. Specifically, tannic acid reduced the serum levels of C reactive protein, myeloperoxidase, and specific IgY and ileal mucosal secretory immunoglobulin A levels in the ileal mucosa compared with those in the NE-infected birds. NE-infected birds fed diets supplemented with tannic acid also showed significantly increased relative Anaerocolumna, Thermoanaerobacterium, and Thermosinus abundance (P < 0.05); their microbial composition and functional predictions were similar to those of the NC group. CONCLUSIONS Tannic acid in the diet alleviated NE by enhancing the intestinal barrier and absorption function. The recommended dietary tannic acid additive level is 500-750 mg/kg. Our study findings would be useful in reducing related economic losses in the broiler industry.
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Affiliation(s)
- Huiping Xu
- Department of Animal Nutrition and Feed Science, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Jianyang Fu
- Department of Animal Nutrition and Feed Science, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Yimeng Luo
- Department of Animal Nutrition and Feed Science, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Peng Li
- Department of Animal Nutrition and Feed Science, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Bochen Song
- Department of Animal Nutrition and Feed Science, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
- Department of Animal Science, Shandong Agricultural University, Taian, 271018, China
| | - Zengpeng Lv
- Department of Animal Nutrition and Feed Science, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Yuming Guo
- Department of Animal Nutrition and Feed Science, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China.
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Barekatain R, Chrystal PV, Nowland T, Moss AF, Howarth GS, Hao Van TT, Moore RJ. Negative consequences of reduced protein diets supplemented with synthetic amino acids for performance, intestinal barrier function, and caecal microbiota composition of broiler chickens. ANIMAL NUTRITION 2023. [DOI: 10.1016/j.aninu.2023.01.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
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10
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Konieczka P, Wojtasik-Kalinowska I, Poltorak A, Kinsner M, Szkopek D, Fotschki B, Juśkiewicz J, Banach J, Michalczuk M. Cannabidiol affects breast meat volatile compounds in chickens subjected to different infection models. Sci Rep 2022; 12:18940. [PMID: 36344735 PMCID: PMC9640543 DOI: 10.1038/s41598-022-23591-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 11/02/2022] [Indexed: 11/09/2022] Open
Abstract
No study has demonstrated the use of dietary Cannabis-derived cannabidiol (CBD) to alter the stress response in chickens or examined its effects on meat volatile compounds (VOCs). Here, we subjected chickens to dysbiosis via C. perfringens infection or Escherichia coli lipopolysaccharide (LPS) treatment and investigated the potential link between meat VOCs and cecal bacterial activity and the ameliorative effect of CBD. The cecal bacterial production of short-chain fatty acids (SCFAs) was closely correlated with meat VOCs. CBD supplementation reduced the formation of breast meat spoilage VOCs, including alcohols, trimethylamine and pentanoic acid, in the challenged birds, partly by decreasing cecal putrefactive SCFA production. Meat VOC/cecal SCFA relationships differed according to the challenge, and CBD attenuated the effects of C. perfringens infection better than the effects of LPS challenge on meat VOCs. These findings provide new insights into the interactions among bioactive agent supplementation, gut microbiota activity and meat properties in birds.
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Affiliation(s)
- Paweł Konieczka
- grid.413454.30000 0001 1958 0162Department of Animal Nutrition, The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Instytucka 3, 05-110 Jabłonna, Poland ,grid.412607.60000 0001 2149 6795Department of Poultry Science and Apiculture, University of Warmia and Mazury, Oczapowskiego 5, 10-718 Olsztyn, Poland
| | - Iwona Wojtasik-Kalinowska
- grid.13276.310000 0001 1955 7966Department of Technique and Food Development, Warsaw University of Life Sciences, 159C Nowoursynowska, 02-776 Warsaw, Poland
| | - Andrzej Poltorak
- grid.13276.310000 0001 1955 7966Department of Technique and Food Development, Warsaw University of Life Sciences, 159C Nowoursynowska, 02-776 Warsaw, Poland
| | - Misza Kinsner
- grid.413454.30000 0001 1958 0162Department of Animal Nutrition, The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Instytucka 3, 05-110 Jabłonna, Poland
| | - Dominika Szkopek
- grid.413454.30000 0001 1958 0162Department of Animal Nutrition, The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Instytucka 3, 05-110 Jabłonna, Poland
| | - Bartosz Fotschki
- grid.413454.30000 0001 1958 0162Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, 10-748 Olsztyn, Poland
| | - Jerzy Juśkiewicz
- grid.413454.30000 0001 1958 0162Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, 10-748 Olsztyn, Poland
| | - Joanna Banach
- grid.425118.b0000 0004 0387 1266Institute of Natural Fibres and Medicinal Plants – National Research Institute, Wojska Polskiego 71B, 60-630 Poznań, Poland
| | - Monika Michalczuk
- grid.13276.310000 0001 1955 7966Department of Animal Breeding, Institute of Animal Sciences, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786 Warsaw, Poland
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11
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Selle PH, Macelline SP, Greenhalgh S, Chrystal PV, Liu SY. Identifying the shortfalls of crude protein-reduced, wheat-based broiler diets. ANIMAL NUTRITION 2022; 11:181-189. [PMID: 36263404 PMCID: PMC9562441 DOI: 10.1016/j.aninu.2022.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 06/07/2022] [Accepted: 07/27/2022] [Indexed: 11/23/2022]
Abstract
The objective of this review is to identify the shortfalls of wheat-based, crude protein (CP)-reduced diets for broiler chickens as wheat is inferior to maize in this context but to inconsistent extents. Inherent factors in wheat may be compromising gut integrity; these include soluble non-starch polysaccharides (NSP), amylase trypsin inhibitors (ATI) and gluten. Soluble NSP in wheat induce increased gut viscosities, which can lead to compromised gut integrity, which is not entirely ameliorated by NSP-degrading feed enzymes. Wheat ATI probably compromise gut integrity and may also have the capacity to increase endogenous amino acid flows and decrease apparent starch and protein digestibilities. Gluten inclusions of 20 g/kg in a maize-soy diet depressed weight gain and feed intake and higher gluten inclusions have been shown to activate inflammatory cytokine-related genes in broiler chickens. Further research is required, perhaps particularly in relation to wheat ATI. The protein content of wheat is typically higher than maize; importantly, this results in higher inclusions of non-bound amino acids in CP-reduced broiler diets. These higher inclusions could trigger post-enteral amino acid imbalances, leading to the deamination of surplus amino acids and the generation of ammonia (NH3) which, if not adequately detoxified, results in compromised growth performance from NH3 overload. Thus, alternatives to non-bound amino acids to meet amino acid requirements in birds offered CP-reduced, wheat-based diets merit evaluation. The digestion of wheat starch is more rapid than that of maize starch which may be a disadvantage as the provision of some slowly digestible starch in broiler diets may enhance performance. Alternatively, slowly digestible starch may result in more de novo lipogenesis. Therefore, it may prove instructive to evaluate CP-reduced diets based on maize-wheat and/or sorghum–wheat blends rather than entirely wheat. This would reduce non-bound amino acid inclusions by lowering dietary CP derived from feed grains and may enhance starch digestive dynamics by retarding starch digestion rates. Also, the use of biomarkers to monitor gut integrity in broiler chickens is examined where calprotectin, ovotransferrin and possibly citrulline appear to hold promise, but their validation requires further research.
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12
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Naghizadeh M, Dalgaard TS, Klaver L, Engberg RM. Effects of encapsulated butyrate and salinomycin on gut leakage and intestinal inflammation in broilers. Br Poult Sci 2022; 63:499-509. [PMID: 35170392 DOI: 10.1080/00071668.2022.2042483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
1. The objectives of this study were to i) compare the effects of a commercial product providing encapsulated butyrate (EB) in combination with salinomycin in diets of broilers with impaired intestinal integrity and ii) to identify easy-to-measure biomarkers to evaluate intestinal integrity and health.2. In total, 672, one-day-old male broilers (Ross 308) were randomly assigned to three experimental groups (eight replicates/group): no dietary supplement (control); EB (500 mg/kg, UltraGuard™-DUO, Devenish, Ireland); salinomycin (69 mg/kg feed, Sacox® 120). Impaired gut integrity was induced by a 10 times overdose of a commercial attenuated live vaccine against coccidiosis (Hipracox®, Hipra) on d 17 combined with a grower feed providing rye (50 g/kg diet).3. Improved intestinal integrity and functionality were reflected by reduced fluorescein isothiocyanate-dextran (FITC-D) plasma levels, reduced bacterial translocation to the liver (on d 21) and increased plasma coloration level on d 21 after dietary supplementation of salinomycin, compared to a non-supplemented control diet. Both EB and salinomycin reduced plasma levels of D-lactate (P<0.05).4. An anti-inflammatory effect of salinomycin was indicated as the transient increase in circulating monocytes observed in the EB and control group from 20 to 28 d of age was slightly, but not significantly reduced, in the salinomycin-fed group. Interestingly, greater expression of tumour necrosis factor α (TNF-α) and mucin 2 (MUC2) genes (P=0.039 and P = 0.067, respectively) were detected in the group receiving salinomycin.5. These effects may have collectively contributed to the significantly improved performance of broilers supplemented with salinomycin. The results indicated that EB at 500 mg/kg in feed, in contrast to salinomycin, neither supported gut health nor modulated intestinal integrity in broilers.
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Affiliation(s)
- Mohammad Naghizadeh
- Department of Animal Science, Aarhus University, Blichers Allé 20, P.O. Box 50, DK-8830 Tjele, Denmark
| | - Tina Sørensen Dalgaard
- Department of Animal Science, Aarhus University, Blichers Allé 20, P.O. Box 50, DK-8830 Tjele, Denmark
| | - Laura Klaver
- Department of Animal Science, Aarhus University, Blichers Allé 20, P.O. Box 50, DK-8830 Tjele, Denmark
| | - Ricarda Margarete Engberg
- Department of Animal Science, Aarhus University, Blichers Allé 20, P.O. Box 50, DK-8830 Tjele, Denmark
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13
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Bindari YR, Gerber PF. Centennial Review: Factors affecting the chicken gastrointestinal microbial composition and their association with gut health and productive performance. Poult Sci 2021; 101:101612. [PMID: 34872745 PMCID: PMC8713025 DOI: 10.1016/j.psj.2021.101612] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 11/14/2021] [Accepted: 11/15/2021] [Indexed: 02/08/2023] Open
Abstract
Maintenance of "gut health" is considered a priority in commercial chicken farms, although a precise definition of what constitutes gut health and how to evaluate it is still lacking. In research settings, monitoring of gut microbiota has gained great attention as shifts in microbial community composition have been associated with gut health and productive performance. However, microbial signatures associated with productivity remain elusive because of the high variability of the microbiota of individual birds resulting in multiple and sometimes contradictory profiles associated with poor or high performance. The high costs associated with the testing and the need for the terminal sampling of a large number of birds for the collection of gut contents also make this tool of limited use in commercial settings. This review highlights the existing literature on the chicken digestive system and associated microbiota; factors affecting the gut microbiota and emergence of the major chicken enteric diseases coccidiosis and necrotic enteritis; methods to evaluate gut health and their association with performance; main issues in investigating chicken microbial populations; and the relationship of microbial profiles and production outcomes. Emphasis is given to emerging noninvasive and easy-to-collect sampling methods that could be used to monitor gut health and microbiological changes in commercial flocks.
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Affiliation(s)
- Yugal Raj Bindari
- Animal Science, School of Environmental and Rural Science, University of New England, Armidale, NSW 2351, Australia
| | - Priscilla F Gerber
- Animal Science, School of Environmental and Rural Science, University of New England, Armidale, NSW 2351, Australia.
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14
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Melaku M, Zhong R, Han H, Wan F, Yi B, Zhang H. Butyric and Citric Acids and Their Salts in Poultry Nutrition: Effects on Gut Health and Intestinal Microbiota. Int J Mol Sci 2021; 22:10392. [PMID: 34638730 PMCID: PMC8508690 DOI: 10.3390/ijms221910392] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 09/19/2021] [Accepted: 09/22/2021] [Indexed: 12/26/2022] Open
Abstract
Intestinal dysfunction of farm animals, such as intestinal inflammation and altered gut microbiota, is the critical problem affecting animal welfare, performance and farm profitability. China has prohibited the use of antibiotics to improve feed efficiency and growth performance for farm animals, including poultry, in 2020. With the advantages of maintaining gut homeostasis, enhancing digestion, and absorption and modulating gut microbiota, organic acids are regarded as promising antibiotic alternatives. Butyric and citric acids as presentative organic acids positively impact growth performance, welfare, and intestinal health of livestock mainly by reducing pathogenic bacteria and maintaining the gastrointestinal tract (GIT) pH. This review summarizes the discovery of butyric acid (BA), citric acid (CA) and their salt forms, molecular structure and properties, metabolism, biological functions and their applications in poultry nutrition. The research findings about BA, CA and their salts on rats, pigs and humans are also briefly reviewed. Therefore, this review will fill the knowledge gaps of the scientific community and may be of great interest for poultry nutritionists, researchers and feed manufacturers about these two weak organic acids and their effects on intestinal health and gut microbiota community, with the hope of providing safe, healthy and nutrient-rich poultry products to consumers.
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Affiliation(s)
- Mebratu Melaku
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (M.M.); (R.Z.); (H.H.); (F.W.)
- Department of Animal Production and Technology, College of Agriculture, Woldia University, Woldia P.O. Box 400, Ethiopia
| | - Ruqing Zhong
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (M.M.); (R.Z.); (H.H.); (F.W.)
| | - Hui Han
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (M.M.); (R.Z.); (H.H.); (F.W.)
| | - Fan Wan
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (M.M.); (R.Z.); (H.H.); (F.W.)
- College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China
| | - Bao Yi
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (M.M.); (R.Z.); (H.H.); (F.W.)
| | - Hongfu Zhang
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (M.M.); (R.Z.); (H.H.); (F.W.)
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15
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Gilani S, Chrystal PV, Barekatain R. Current experimental models, assessment and dietary modulations of intestinal permeability in broiler chickens. ACTA ACUST UNITED AC 2021; 7:801-811. [PMID: 34466684 PMCID: PMC8384772 DOI: 10.1016/j.aninu.2021.03.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 02/26/2021] [Accepted: 03/05/2021] [Indexed: 12/12/2022]
Abstract
Maintaining and optimising the intestinal barrier (IB) function in poultry has important implications for the health and performance of the birds. As a key aspect of the IB, intestinal permeability (IP) is mainly controlled by complex junctional proteins called tight junction proteins (TJ) that link enterocytes together. The disruption of TJ is associated with increased gut leakage with possible subsequent implications for bacterial translocation, intestinal inflammation, compromised health and performance of the birds. Despite considerable data being available for other species, research on IP in broiler chickens and in general avian species is still an understudied topic. This paper reviews the available literature with a specific focus on IP in broiler chickens with consideration given to practical factors affecting the IP, current assessment methods, markers and nutritional modulation of IP. Several experimental models to induce gut leakage are discussed including pathogens, rye-based diets, feed deprivation and stress-inducing agents such as exogenous glucocorticoids and heat stress. Although various markers including fluorescein isothiocyanate dextran, expression of TJ and bacterial translocation have been widely utilized to study IP, recent studies have identified a number of excreta biomarkers to evaluate intestinal integrity, in particular non-invasive IP. Although the research on various nutrients and feed additives to potentially modulate IP is still at an early stage, the most promising outcomes are anticipated for probiotics, prebiotics, amino acids and those feed ingredients, nutrients and additives with anti-inflammatory properties. Considerable research gaps are identified for the mechanistic mode of action of various nutrients to influence IP under different experimental models. The modulation of IP through various strategies (i.e. nutritional manipulation of diet) may be regarded as a new frontier for disease prevention and improving the health and performance of poultry particularly in an antibiotic-free production system.
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Affiliation(s)
- Saad Gilani
- Danisco Animal Nutrition (IFF), Oegstgeest, the Netherlands
| | | | - Reza Barekatain
- South Australian Research and Development Institute, Roseworthy Campus, Roseworthy, SA, Australia
- School of Animal and Veterinary Sciences, Roseworthy Campus, University of Adelaide, Roseworthy, SA, Australia
- Corresponding author. South Australian Research and Development Institute, Roseworthy Campus, Roseworthy, SA, Australia.
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16
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Shini S, Bryden WL. Probiotics and gut health: linking gut homeostasis and poultry productivity. ANIMAL PRODUCTION SCIENCE 2021. [DOI: 10.1071/an20701] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The use of probiotics in poultry production has increased rapidly, and this movement has been promoted by global events, such as the prohibition or decline in the use of antibiotic growth promotants in poultry feeds. There has been a persistent search for alternative feed additives, and probiotics have shown that they can restore the composition of the gut microbiota, and produce health benefits to the host, including improvements in performance. Probiotics have shown potential to increase productivity in poultry, especially in flocks challenged by stressors. However, the outcomes of probiotic use have not always been consistent. There is an increasing demand for well defined products that can be applied strategically, and currently, probiotic research is focusing on delineating their mechanisms of action in the gut that contribute to an improved efficacy. In particular, mechanisms involved in the maintenance and protection of intestinal barrier integrity and the role of the gut microbiota are being extensively investigated. It has been shown that probiotics modulate intestinal immune pathways both directly and through interactions with the gut microbiota. These interactions are key to maintaining gut homeostasis and function, and improving feed efficiency. Research has demonstrated that probiotics execute their effects through multiple mechanisms. The present review describes recent advances in probiotic use in poultry. It focuses on the current understanding of gut homeostasis and gut health in chickens, and how it can be assessed and improved through supplementation of poultry diets with probiotics in poultry diets. In particular, cellular and molecular mechanisms involved in the maintenance and protection of gut barrier structure and function are described. It also highlights important factors that influence probiotic efficacy and bird performance.
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17
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Dal Pont GC, Belote BL, Lee A, Bortoluzzi C, Eyng C, Sevastiyanova M, Khadem A, Santin E, Farnell YZ, Gougoulias C, Kogut MH. Novel Models for Chronic Intestinal Inflammation in Chickens: Intestinal Inflammation Pattern and Biomarkers. Front Immunol 2021; 12:676628. [PMID: 34054868 PMCID: PMC8158159 DOI: 10.3389/fimmu.2021.676628] [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: 03/05/2021] [Accepted: 04/23/2021] [Indexed: 01/30/2023] Open
Abstract
For poultry producers, chronic low-grade intestinal inflammation has a negative impact on productivity by impairing nutrient absorption and allocation of nutrients for growth. Understanding the triggers of chronic intestinal inflammation and developing a non-invasive measurement is crucial to managing gut health in poultry. In this study, we developed two novel models of low-grade chronic intestinal inflammation in broiler chickens: a chemical model using dextran sodium sulfate (DSS) and a dietary model using a high non-starch polysaccharide diet (NSP). Further, we evaluated the potential of several proteins as biomarkers of gut inflammation. For these experiments, the chemical induction of inflammation consisted of two 5-day cycles of oral gavage of either 0.25mg DSS/ml or 0.35mg DSS/ml; whereas the NSP diet (30% rice bran) was fed throughout the experiment. At four times (14, 22, 28 and 36-d post-hatch), necropsies were performed to collect intestinal samples for histology, and feces and serum for biomarkers quantification. Neither DSS nor NSP treatments affected feed intake or livability. NSP-fed birds exhibited intestinal inflammation through 14-d, which stabilized by 36-d. On the other hand, the cyclic DSS-treatment produced inflammation throughout the entire experimental period. Histological examination of the intestine revealed that the inflammation induced by both models exhibited similar spatial and temporal patterns with the duodenum and jejunum affected early (at 14-d) whereas the ileum was compromised by 28-d. Calprotectin (CALP) was the only serum protein found to be increased due to inflammation. However, fecal CALP and Lipocalin-2 (LCN-2) concentrations were significantly greater in the induced inflammation groups at 28-d. This experiment demonstrated for the first time, two in vivo models of chronic gut inflammation in chickens, a DSS and a nutritional NSP protocols. Based on these models we observed that intestinal inflammation begins in the upper segments of small intestine and moved to the lower region over time. In the searching for a fecal biomarker for intestinal inflammation, LCN-2 showed promising results. More importantly, calprotectin has a great potential as a novel biomarker for poultry measured both in serum and feces.
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Affiliation(s)
- Gabriela C Dal Pont
- Department of Poultry Science, Texas A&M Agrilife Research, Texas A&M University, College Station, TX, United States.,Department of Veterinary Science, Federal University of Paraná, Curitiba, Brazil.,Department of Animal Science, Western Parana State University, Marechal C. Rondon, Brazil.,Innovad NV/SA, Essen, Belgium.,Southern Plains Agricultural Research Center, United States Department of Agriculture - Agricultural Research Service (USDA-ARS), College Station, TX, United States
| | - Bruna L Belote
- Department of Veterinary Science, Federal University of Paraná, Curitiba, Brazil
| | - Annah Lee
- Department of Poultry Science, Texas A&M Agrilife Research, Texas A&M University, College Station, TX, United States
| | - Cristiano Bortoluzzi
- Department of Poultry Science, Texas A&M Agrilife Research, Texas A&M University, College Station, TX, United States
| | - Cinthia Eyng
- Department of Animal Science, Western Parana State University, Marechal C. Rondon, Brazil
| | | | | | - Elizabeth Santin
- Department of Veterinary Science, Federal University of Paraná, Curitiba, Brazil
| | - Yuhua Z Farnell
- Department of Poultry Science, Texas A&M Agrilife Research, Texas A&M University, College Station, TX, United States
| | | | - Michael H Kogut
- Southern Plains Agricultural Research Center, United States Department of Agriculture - Agricultural Research Service (USDA-ARS), College Station, TX, United States
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