酵母水解物对哺乳犊牛精神状态、血清生化指标和肠道菌群的影响  

Effects of yeast hydrolysate on mental status,serum biochemical indexes,and intestinal flora of lactating calves

作　　者：李元晓[1,2] 刘丹 晏克灿 孙成振 孙娟娟 皮庆洁[4] 鲁志民 张才 LI Yuan-xiao;LIU Dan;YAN Ke-can;SUN Cheng-zhen;SUN Juan-juan;PI Qing-jie;LU Zhi-min;ZHANG Cai

机构地区：[1]河南科技大学动物科技学院,河南洛阳471023 [2]河南省动物福利与健康养殖国际联合实验室,河南洛阳471023 [3]中国农业科学院草原研究所,内蒙古呼和浩特010010 [4]南京农业大学动物科技学院,江苏南京210095 [5]济源市伟恒牛业有限公司,河南济源459017

出　　处：《饲料研究》2024年第17期1-6,共6页Feed Research

基　　金：国家自然科学基金(项目编号:31872537);中央引导地方科技发展资金(项目编号:2022ZY0098)。

摘　　要：试验旨在研究酵母水解物对犊牛精神状态、血清生化指标和肠道菌群的影响。试验选取健康体重(39±2)kg的1日龄荷斯坦母犊牛30头,随机分为对照组和试验组,每组15个重复,每个重复1头牛。试验组补饲5 g/(头·d)酵母水解物。预试期7 d,正式试验期56 d。结果显示:补饲5 g/(头·d)酵母水解物能够改善犊牛的精神状态、皮毛状态和粪便的评分。63日龄时,与对照组相比,试验组犊牛血清谷丙转氨酶(ALT)、谷草转氨酶(AST)活性和总蛋白(TP)、白蛋白(ALB)、球蛋白(GLB)、血糖(GLU)、尿素氮(BUN)和胆固醇(TC)含量显著升高(P<0.05)。35日龄时,试验组粪便菌群Chao1指数和Observed-species指数显著降低(P<0.05)。微生物属水平对比发现,试验组14日龄时犊牛粪便中普拉梭菌丰富度有所增加;35日龄时犊牛粪便中普拉梭菌丰富度有所降低。研究表明,补饲5 g/(头·d)的酵母水解物可改善犊牛精神状态、皮毛状态、粪便评分、血清生化指标,提高肠道有益菌群丰度,促进犊牛健康生长。The experiment was conducted to study the effects of yeast hydrolysate on the mental status,serum biochemical indexes,and intestinal flora of calves.A total of 30 one-day-old Holstein female calves with body weight(39±2)kg were selected and randomly divided into a control group and experimental group(supplemented with 5 g/(head·d)yeast hydrolysate),with 15 replicates in each group and one calf in each replicate.Pre-trial period is seven days,and the formal trial period is 56 days.The results showed that the supplementation of 5 g/(head·d)yeast hydrolysate could improve the mental status,fur state and fecal scores of calves.On the 63 days,compared with the control group,the activities of alanine aminotransferase(ALT),aspartate aminotransferase(AST)and the concentrations of total protein(TP),albumin(ALB),globulin(GLB),blood glucose(GLU),urea nitrogen(BUN)and cholesterol(TC)in serum of calves in experimental group were significantly increased(P<0.05).On the 35 days,the Chao1 and Observed-species indices of fecal microbiota in the experimental group were significantly reduced(P<0.05).Compared with the microbial genus level,the abundance of Faecalibacterium in fecal flora increased on the 14th day.The richness of Faecalibacterium in the fecal flora decreased on the 35th day.The results show that supplementation of 5 g/(head·d)yeast hydrolysate can improve the mental state,fur state and feces of calves,improve the serum biochemical indexes,increase the abundance of intestinal beneficial flora,and promote the healthy growth of calves.

关 键 词：酵母水解物 哺乳犊牛 状态评分 生化指标 粪便菌群 

分 类 号：S823[农业科学—畜牧学]