早期补充不同水平复合型益生菌制剂对犊牛生长性能、血清免疫指标及抗氧化能力的影响  

Effects of Early Supplementation of Different Levels of Composite Probiotic Preparations on Growth Performance,Serum Immune Indicators,and Antioxidant Capacity of Calves

作　　者：张洪伟 郭建军 周英昊 张磊 张彤 谭美姝 张召兴 潘金龙 ZHANG Hongwei;GUO Jianjun;ZHOU Yinghao;ZHANG Lei;ZHANG Tong;TAN Meishu;ZHANG Zhaoxing;PAN Jinlong(Chengde Academy of Agricultural and Forestry Sciences,Chengde,Hebei 067000;Beijing Shounong Animal Husbandry Development Co.,Ltd.,Beijing 010300;Hebei Tourism Vocational College,Chengde,Hebei 067000;Chengde Agricultural and Rural Bureau,Chengde,Hebei 067000,China)

机构地区：[1]承德市农林科学院,河北承德067000 [2]北京首农畜牧发展有限公司,北京010300 [3]河北旅游职业学院,河北承德067000 [4]承德市农业农村局,河北承德067000

出　　处：《家畜生态学报》2025年第3期22-27,共6页Journal of Domestic Animal Ecology

基　　金：河北省现代农业产业技术体系奶牛创新团队(HBCT2024230205);承德国家可持续发展议程创新示范区建设科技专项(202202F016);承德市绿色食品产业研究院建设项目(202205B088)。

摘　　要：为研究早期补饲不同水平复合型益生菌制剂对犊牛生长性能、血液免疫指标、抗氧化能力的影响,本试验选取48头2周龄的健康哺乳期犊牛,随机分为3组,每组16重复,每1头健康哺乳期犊牛为1个重复,1组对照组(基础日粮)、2组(基础日粮+0.5%复合型益生菌制剂)、3组(基础日粮+1%复合型益生菌制剂),预饲期7 d,试验期为42 d。结果显示,试验2、3组哺乳期犊牛的平均日增重显著高于1组(P<0.05),料重比显著低于1组(P<0.05),其余生产性能指标各组间无显著性差异(P>0.05)。哺乳期犊牛的体高、体斜长各组间无显著性差异(P>0.05),试验2、3组的哺乳期犊牛的胸围显著高于1组(P<0.05)。试验2、3组哺乳期犊牛的血清中IgA、IgG、IL-2含量显著高于1组(P<0.05),试验2组犊牛血清中TNF-α含量显著低于1组(P<0.05)。试验2、3组哺乳期犊牛的血清中SOD、T-AOC的活性均显著高于1组(P<0.05),MDA活性显著低于1组(P<0.05)。综上,早期补充不同水平复合型益生菌制剂可以提高犊牛生长性能、免疫机能和抗氧化能力,以添加0.5%复合型益生菌制剂较为适宜。To study the effects of supplementation with different levels of composite probiotic preparations at early stages of growth on the growth performance,blood immune indicators,and antioxidant capacity of calves,48 healthy lactating calves at the age of 2 weeks were selected and randomly divided into 3 groups.Each group had 16 replicates,and each replicate had one healthy lactating calf.The groups were control group 1(basic diet),group 2(basic diet+0.5%composite probiotic preparation),and group 3(basic diet+1%composite probiotic preparation),with a pre-feeding period of 7 days and an experimental period of 42 days.The results showed that the average daily weight gain of lactating calves in Experiment 2 and 3 was significantly higher than that in Group 1(P<0.05),and their feed to weight ratio was significantly lower than that in Group 1(P<0.05).And there was no significant difference in the initial weight,final weight,and average feed intake of lactating calves among each group(P>0.05).There was no significant difference in body height and body length between the groups of lactating calves(P>0.05),while the chest circumference in Experiment groups 2 and 3 were significantly higher than those in Group 1(P<0.05).The levels of IgA,IgG,and IL-2 in the serum of lactating calves in Experiment groups 2 and 3 were significantly higher than those in Group 1(P<0.05).The content of TNF-αin serum of calves in experiment group 2 was significantly lower than that in experiment group 1(P<0.05).The activities of SOD and T-AOC in the serum of lactating calves in Experiment groups 2 and 3 were significantly higher than those in Group 1(P<0.05),while their MDA activity was significantly lower than that in Group 1(P<0.05).In summary,supplementing different levels of composite probiotic preparations in the early stage can improve the growth performance,immune function,and antioxidant capacity of calves,and adding 0.5%of composite probiotic preparations is more suitable.

关 键 词：复合型益生菌 哺乳期犊牛 生长性能 免疫指标 抗氧化能力 

分 类 号：S823.5[农业科学—畜牧学]