过瘤胃包被亮氨酸及β-羟基-β-甲基丁酸钙对内蒙古白绒山羊免疫机能的影响  

Effects of Rumen-protected Leucine and β-hydroxy β-methylbutyrate-Ca on Immune Function of Inner Mongolian White Cashmere Goats

作　　者：郭俊清[1] 孙海洲[2] 桑丹[2] 李金霞[1] 赵存发[3] 

机构地区：[1]内蒙古农业大学动物科学与医学学院,呼和浩特010018 [2]内蒙古农牧业科学院动物营养研究所,呼和浩特010030 [3]内蒙古农牧业科学院,呼和浩特010031

出　　处：《动物营养学报》2010年第6期1762-1767,共6页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：国家自然科学基金(30560106);内蒙古科技创新基金及现代农业技术体系-国家绒毛用羊产业技术体系(项目编号nycytx-40-10)

摘　　要：本研究旨在观察不同水平瘤胃保护性亮氨酸及β-羟基-β-甲基丁酸钙(HMB-Ca)对绒山羊免疫机能的影响。选用21只健康的内蒙古白绒山羊半同胞羯羊,按体重随机分为7组,对照组饲喂基础饲粮,6个试验组在基础饲粮基础上分别添加HMB-Ca 0.5 g/d(A组)、HMB-Ca 1.0 g/d(B组)、HMB-Ca 1.5 g/d(C组)、亮氨酸0.5 g/d(D组)、亮氨酸1.0 g/d(E组)、亮氨酸1.5 g/d(F组)。结果表明,添加不同水平保护性亮氨酸、HMB-Ca均可提高机体血清溶菌酶的含量(P<0.05),提高血清中免疫球蛋白G的含量、免疫球蛋白M的含量,降低血清中可溶性CD4和CD8的含量,其中C组的效果最好(P<0.05)。结果提示,饲料中添加保护性亮氨酸、HMB-Ca可增强机体的免疫机能。The study was to observe the effects of different levels of rumen-protected leucine（Leu） and β-hydroxy β-methylbutyrate-Ca（HMB-Ca） on immune function of Inner Mongolian White Cashmere goats（IMWCG）.Twenty-one wethers of IMWCG in half-sib were randomly divided into 7 groups according to body weight.Goats in control group were fed basal diet,goats in the six experimental groups were fed diets supplemented with different levels of Leu and HMB-Ca [0.5 g/d HMB group（group A）,1.0 g/d HMB group（group B）,1.5 g/d HMB group（group C）,0.5 g/d Leu group（group D）,1.0 g/d Leu group（group E） and 1.5 g/d Leu group（group F）].The results suggested that different levels of rumen-protected Leu and HMB-Ca could increase lysozyme（P0.05）,IgG and IgM contents in serum,but decrease the levels of serum soluble CD4 and CD8,and group C got the best effects（P0.05）.The experiment indicates that rumen-protected Leu and HMB-Ca play important roles in enhancing the body immune function.

关 键 词：过瘤胃保护 亮氨酸 β-羟基-β-甲基丁酸钙 免疫 白绒山羊 

分 类 号：S826[农业科学—畜牧学]