Microbiocenosis of the chicken ceca: impact of in ovo delivered bioactive substances, heat stress, and antibiotic growth promoters

IF 1.6 3区农林科学 Q2 AGRICULTURE, DAIRY & ANIMAL SCIENCE Journal of Applied Poultry Research Pub Date : 2023-12-15 DOI:10.1016/j.japr.2023.100397

S. Oladokun , D. Adewole

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Abstract

The chicken gut microbiota plays important roles in host physiology and well-being. It can be impacted by several management and environmental factors like the use of antibiotic growth promoters (AGP) and heat stress (HS). Probiotics, essential oils (EO), and vitamins (such as folic acid) are bioactive substances that could potentially modulate the gut microbiota and promote its resilience to stressful environmental factors, especially when supplied as early as during embryonic development. This study evaluated the gut microbiota modulating potential of in ovo delivered probiotics, folic acid (FA), and in ovo + in-water delivered EO in broiler chickens, as compared to an in-feed AGP, under an HS challenge. Results from this study indicate that HS, AGP, and in ovo + in-water EO treatments modified chicken ceca bacterial populations and suggest that the microbiota-mediated role of AGP in growth promotion is related to improved biosynthesis of essential nutrients (amino acids and vitamins especially) and utilization of carbon sources derived from host diet and microbiome.

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鸡盲肠的微生物增殖：卵内输送生物活性物质、热应力和抗生素生长促进剂的影响。

鸡肠道微生物群对宿主的生理和健康起着重要作用。它可能受到多种管理和环境因素的影响，如使用抗生素生长促进剂（AGP）和热应激（HS）。益生菌、精油（EO）和维生素（如叶酸）等生物活性物质有可能调节肠道微生物群，并提高其对应激环境因素的适应能力，尤其是在胚胎发育早期提供这些物质时。本研究评估了在HS挑战下，与饲料中的AGP相比，在肉鸡体内输送益生菌、叶酸（FA）和体内+水中输送环氧乙烷对肠道微生物群的调节潜力。这项研究的结果表明，HS、AGP 和卵内+水中 EO 处理改变了鸡盲肠细菌群，并表明 AGP 在促进生长方面的微生物群介导作用与改善必需营养素（尤其是氨基酸和维生素）的生物合成以及利用来自宿主饮食和微生物群的碳源有关。

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来源期刊

Journal of Applied Poultry Research 农林科学-奶制品与动物科学

CiteScore

4.10

自引率

10.50%

发文量

审稿时长

104 days

期刊介绍： The Journal of Applied Poultry Research (JAPR) publishes original research reports, field reports, and reviews on breeding, hatching, health and disease, layer management, meat bird processing and products, meat bird management, microbiology, food safety, nutrition, environment, sanitation, welfare, and economics. As of January 2020, JAPR will become an Open Access journal with no subscription charges, meaning authors who publish here can make their research immediately, permanently, and freely accessible worldwide while retaining copyright to their work. Papers submitted for publication after October 1, 2019 will be published as Open Access papers. The readers of JAPR are in education, extension, industry, and government, including research, teaching, administration, veterinary medicine, management, production, quality assurance, product development, and technical services. Nutritionists, breeder flock supervisors, production managers, microbiologists, laboratory personnel, food safety and sanitation managers, poultry processing managers, feed manufacturers, and egg producers use JAPR to keep up with current applied poultry research.