微生物发酵饲料对肉牛免疫机能的影响  

Effects of Microbial Fermented Feed on Immune Function Parameter of Beef Cattle

作　　者：余淼[1] 严锦绣[1] 彭忠利[1] 柏雪[1] 郭春华[1] 于婷婷[1] 艾丹[1] 曹龙凯[1] 

机构地区：[1]西南民族大学生命科学与技术学院,四川成都610041

出　　处：《中国畜牧兽医》2013年第4期114-117,共4页China Animal Husbandry & Veterinary Medicine

基　　金：中央高校基本科研业务费专项基金(11ZYXS22);四川省科技支撑计划(2011GZ0253)

摘　　要：试验旨在研究微生物发酵饲料对肉牛免疫机能的影响。选择90头月龄相近、体型结构相似、体重(373.4～425.3)kg的健康西杂牛,采用随机区组试验设计,将90头牛分为3组,每组5个重复,每个重复6头牛。对照组饲喂基础精料日粮,试验Ⅰ、Ⅱ组分别用25%和40%微生物发酵饲料替代基础精料,各组每头牛每天饲喂相同重量的精料(4kg)和玉米秸秆颗粒(2.7kg),酒糟自由采食,拴系饲喂,自由饮水;预试期10d,正试期48d。结果显示,与对照组相比,2个试验组中血清总蛋白、白蛋白、免疫球蛋白A、G、M浓度显著(P<0.05)或极显著(P<0.01)提高,谷草转氨酶、谷丙转氨酶活性及丙二醛浓度均显著(P<0.05)或极显著(P<0.01)下降;且总抗氧化能力和总超氧化物歧化酶的活性极显著增强(P<0.01)。提示,利用微生物发酵饲料能提高肉牛免疫力。The aim of the study was to illustrate the effect of the microbial fermented feed on cattle by the parameters of the immune and antioxidant capability in the serum. Ninety healthy cattle with the similar age, conformation and weight （373.4 to 425.3 kg）, which crossbred by Simmental bull and Native cow were randomly allotted into three groups. One group was the control group, and the others were the treatment groups. There were 30 cattles in each group with 5 replicates and 6 cattles were used in per replicate. The experiment was designed with randomized block design. The cattle in the control group were fed on the basal concentrate. Meanwhile the cattle in the treatment groups Ⅰand Ⅱ were fed on the microecological function feed instead of concentrate by the ratio of 25% and 40%, respectively. Each head of cattle was fed on the same weight of concentrate and corn straw particle, but was allowed free choice continuous access to feed on vinasse and free drinking every day. Every formal experiment period had 48 days, advanced experiment period had 10 days. The results showed that compared with the control group, the concentrations of total serum protein, albumin, IgA, IgG, IgM increased markedly（P〈0.05 or P〈0.01）, while the blood serum concentration of as partate aminotransferase, aminotransferase, maleic dialdehyde decreased significantly （P〈0.05 or P〈0.01） in the treatment groups. Besides, the total antioxidant capacity and the activity of superoxide dismutase were enhanced significantly （P〈0.01）in the treatment groups. This study would provide the scientific basis for improving immunity of beef cattle by microbial fermented feed.

关 键 词：微生物发酵饲料 肉牛 免疫功能 抗氧化功能 

分 类 号：S816.7[农业科学—饲料科学]