Effect of dietary post-biotic supplementation on growth performance, antioxidant status, immunity and gut health in broiler chickens.

IF 1.7 3区农林科学 Q2 AGRICULTURE, DAIRY & ANIMAL SCIENCE

British Poultry Science Pub Date : 2026-10-12 DOI:10.1080/00071668.2026.2714538

B Sravanthi, S Raju, J Narasimha, S K Kunnath, N N Kumari

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引用次数: 0

Abstract

1. This study evaluated the effects of dietary supplementation of a Saccharomyces cerevisiae post-biotic on growth performance, immune response, antioxidant status, gut microbial population and intestinal morphology in broiler chickens.2. A total of 144, one-day-old Vencobb-400F broiler chicks were randomly distributed into three dietary treatments, each with eight replicates containing six chicks, and reared in battery cages for 35 d.3. The control diet was without post-biotic supplementation, while the treatment diets contained 0.5 or 1 g/kg post-biotic. Growth performance, Newcastle disease antibody titre, caecal microbial counts, serum antioxidant indices and gut histomorphometry were recorded.4. Birds fed diets supplemented with post-biotics showed significantly (p < 0.05) higher body weight gain and improved feed conversion ratio compared to the control group, while feed intake remained unaffected.5. Newcastle disease antibody titres were significantly higher (p < 0.05) in birds fed 1 g/kg post-biotic. Supplementation increased (p < 0.05) Lactobacillus spp. counts and reduced (p < 0.05) E. coli populations in the caecum.6. Serum antioxidant enzymes were significantly elevated (p < 0.05), whereas lipid peroxidation and cortisol levels were significantly reduced in supplemented birds compared to control. Improvements in villi measurements were observed, although differences were mostly not significant.

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饲粮添加生物后对肉鸡生长性能、抗氧化状态、免疫和肠道健康的影响

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来源期刊

British Poultry Science 农林科学-奶制品与动物科学

CiteScore

3.90

自引率

5.00%

发文量

审稿时长

4.5 months

期刊介绍： From its first volume in 1960, British Poultry Science has been a leading international journal for poultry scientists and advisers to the poultry industry throughout the world. Over 60% of the independently refereed papers published originate outside the UK. Most typically they report the results of biological studies with an experimental approach which either make an original contribution to fundamental science or are of obvious application to the industry. Subjects which are covered include: anatomy, embryology, biochemistry, biophysics, physiology, reproduction and genetics, behaviour, microbiology, endocrinology, nutrition, environmental science, food science, feeding stuffs and feeding, management and housing welfare, breeding, hatching, poultry meat and egg yields and quality.Papers that adopt a modelling approach or describe the scientific background to new equipment or apparatus directly relevant to the industry are also published. The journal also features rapid publication of Short Communications. Summaries of papers presented at the Spring Meeting of the UK Branch of the WPSA are published in British Poultry Abstracts .