中国畜牧兽医2016，Vol.43Issue(11)：2922-2930,9.DOI:10.16431/j.cnki.1671-7236.2016.11.017
甘露寡糖添加方式对哺乳期犊牛生长性能、粪便菌群及血清免疫指标的影响
Effect of Different Addition Schemes of Mannan Oligosaccharide on Growth Performance,Fecal Microorganism and Serum Immune Indexes of Calves
摘要
Abstract
This experiment was conducted to study the effects of mannan oligosaccharides with different adding schemes on growth performance, fecal microorganism and serum immune indexes of calves.Twenty newborn Holstein calves were randomly divided into 4 groups with 5 replicates per group.The claves in group Ⅰ (control group) were not fed the mannan oligosaccharide.The calves in group Ⅱ were fed 5 g mannan oligosaccharide added into the milk,and that of group Ⅲ were fed 5 g mannan oligosaccharide added into the starter diet while calves of group Ⅳ were fed 2.5 g mannan oligosaccharide added into the milk and the starter diet,respectively.The feeding trial lasted for 56 days.The results showed as follows:①During the whole experiment period,body length an body structure of calves had no significant difference between the groups (P>0.05).②During the whole experiment period,the average daily dry matter intake (ADMI) and average daily gain (ADG) in the experiment groups was higher than the control group,the F/G was lower than the control group,and group Ⅱ was the best of the three experiment groups.③On 21th day,the number of Bifidobacterium in feces of the calves in the group Ⅰ was significantly lower than that in other groups (P<0.05),and that of group Ⅱ was the highest;The number of E.coli in feces of the calves in the group Ⅰ was significantly higher than that in other groups (P<0.05),and the group Ⅱ was the lowest.On 56th day,the number of Bifidobacterium of experimental groups were higher than that of control group.The change of E.coli number of four groups were as the same as 21th day.④On 21th day,the serum IgA content of experimental groups were higher than group Ⅰ,and that of group Ⅱ were significantly increased (P<0.05);IgG had a similar change with the IgA;The serum IgM content of group Ⅳ was significantly higher than group Ⅰ (P<0.05), while that of group Ⅲ was lower than control group;On 56th day,the serum immune indexes of experimental groups were all higher than control group (P>0.05).In conclusion,adding mannan oligosaccharides could promote calf growth performance,gut health and immunity,while adding mannan oligosaccharide to milk had better effects.关键词
甘露寡糖/犊牛/生长性能/粪便微生物/血清免疫Key words
mannan oligosaccharide/calves/growth performance/fecal microorganism/serum immune indexes分类
农业科技引用本文复制引用
金亚东,张力莉,陈绍淑,徐晓锋..甘露寡糖添加方式对哺乳期犊牛生长性能、粪便菌群及血清免疫指标的影响[J].中国畜牧兽医,2016,43(11):2922-2930,9.基金项目
宁夏自然科学基金:功能性寡糖对早期断奶犊牛胃肠道发育及微生物区系构建影响的研究(NZ14003) （NZ14003）
