动物营养学报2016，Vol.28Issue(7)：2235-2242,8.DOI:10.3969/j.issn.1006-267x.2016.07.030
β－葡聚糖对肉仔鸡生长性能、免疫功能和肠道微环境的影响
Effects of β-Glucan on Growth Performance, Immune Function and Intestinal Micro Environment of Broilers
摘要
Abstract
This experiment was conducted to investigate the effects of diet addingβ⁃glucan on growth perform⁃ance, immune function and intestinal micro environment of broilers. A total of 672 one⁃day⁃old Arbor Acres ( AA) broilers were randomly allocated to 4 groups with 14 replicates per group and 12 chickens per replicate. The control group was fed a basal diet, while the experimental groups were fed the basal diet supplemented with 100, 150 and 200 g/t β⁃glucan, respectively. The experiment lasted for 42 days. The results showed as following:1) the weight gain of broilers aged from 1 to 21 days in 150 g/t groups was significantly higher than that in control group ( P<0.05) . 2) The serum immunoglobulin content of broilers in 150 g/t group was higher than that in control group ( P>0.05) . 3) At 21 days of age, the caecal Lactobacillus number of broilers in 150 g/t group was significantly higher than that in control group ( P<0.05) , while the number of Salmonel⁃la in jejunum and ileum was significantly lower than that in control group ( P<0.05) . At 42 days of age, the caecal Salmonella number of broilers in 150 and 200 g/t group was significantly lower than that in control group and 100 g/t group (P<0.05). 4) The villus height to crypt depth ratio in the jejunum of broilers was significantly influenced by dietary β⁃glucan supplementation ( P<0. 05 ) . In conclusion, moderate β⁃glucan supplementation can improve the commercial body weight, growth performance and the number of Lactobacil⁃lus in caecum, while reduce the number of Salmonella in jejunum, ileum and caecum.关键词
β-葡聚糖/肉仔鸡/生长性能/免疫功能/肠道微环境Key words
β-glucan/broilers/growth performance/immunity function/intestinal micro environment分类
畜牧业引用本文复制引用
曲昆鹏,张倩,杨家昶,胡希怡,曹丙健,宋志刚,程宗佳..β－葡聚糖对肉仔鸡生长性能、免疫功能和肠道微环境的影响[J].动物营养学报,2016,28(7):2235-2242,8.基金项目
山东省现代农业产业技术体系家禽创新团队项目 （）
