动物营养学报2017，Vol.29Issue(2)：465-478,14.DOI:10.3969/j.issn.1006-267x.2017.02.014
枯草芽孢杆菌CGMCC 1.921对蛋鸡生产性能、血常规指标、血清生化指标及免疫球蛋白含量的影响
Effects of Bacillus subtilis CGMCC 1.921 on Performance, Routine Blood Parameters, Serum Biochemical Parameters and Immunoglobulin Contents of Laying Hens
摘要
Abstract
This study was conducted to investigate the effects of Bacillus subtilis CGMCC 1.921 on performance, routine blood parameters, serum biochemical parameters and immunoglobulin contents of laying hens.A total of 360 twenty-seven-week-old healthy Hy-Line brown laying hens were randomly allocated into 5 groups with 6 replicates per group and 12 birds per replicate.The control group (group 1) was fed a basal diet, and the experimental groups (groups 2 to 5) were fed the basal diets supplemented with 1.0×105, 1.0×106, 1.0×107 and 1.0×108 CFU/g Bacillus subtilis CGMCC 1.921, respectively.The experiment lasted for 24 weeks.The results showed that there were no significant differences in egg production, feed intake, egg weight, egg weight per hen and mortality among all groups (P>0.05).However, group 2, 4, 5 significantly decreased feed to egg ratio compared with the control group (P<0.05).Dietary Bacillus subtilis CGMCC 1.921 supplementation significantly increased serum glucose content (weeks 2, 3, 12, 16 and 20) (P<0.05), and significantly decreased serum urea content (weeks 2, 3, 8 and 12) (P<0.05).Dietary Bacillus subtilis CGMCC1.921 supplementation significantly increased blood leucocytes (weeks 1, 3, 4, 8, 12, 16, 20 and 24) and lymphocytes counts (weeks 2, 3, 4, 8, 12, 16, 20 and 24) (P<0.05), and significantly increased serum immunoglobulin G (weeks 1 and 4) and immunoglobulin M contents (weeks 2, 4, 8 and 16) (P<0.05).Therefore, dietary Bacillus subtilis CGMCC 1.921 supplementation can decrease the feed to egg ratio, improve serum glucose and urea contents and routine blood test parameters, and enhance immunity of laying hens to a certain extent.[Chinese Journal of Animal Nutrition, 2017, 29 (2) : 465-478]关键词
蛋鸡/枯草芽孢杆菌/生产性能/血常规指标/血清生化指标/免疫球蛋白Key words
laying hens/Bacillus subtilis/performance/routine blood parameters/serum biochemical parameters/immunoglobulin分类
农业科技引用本文复制引用
郭军蕊,董晓芳,佟建明..枯草芽孢杆菌CGMCC 1.921对蛋鸡生产性能、血常规指标、血清生化指标及免疫球蛋白含量的影响[J].动物营养学报,2017,29(2):465-478,14.基金项目
国家蛋鸡产业技术体系建设专项经费(CARS-41-K16) （CARS-41-K16）
中国农业科学院科技创新工程(ASTIP-IAS08) （ASTIP-IAS08）
