复方中药对热应激条件下肉牛生理指标、生长性能及血清生化指标的影响  

Effects of compound Chinese herbal on physiological indexes,growth performance, and serum biochemical indexes of beef cattle under heat stress

作　　者：郎利敏[1] 师志海[1] 王亚洲 赵彩艳 王二耀[1] LANG Li-min;SHI Zhi-hai;WANG Ya-zhou;ZHAO Cai-yan;WANG Er-yao

机构地区：[1]河南省农业科学院畜牧研究所,河南郑州450008

出　　处：《饲料研究》2024年第10期22-26,共5页Feed Research

基　　金：国家肉牛牦牛产业技术体系(项目编号:CARS-37);河南省肉牛产业技术体系(项目编号:S2013-08)。

摘　　要：试验旨在探讨复方中药对热应激条件下肉牛生理指标、生长性能及血清生化指标的影响。选取体况良好、体重相近的育肥期夏南牛24头,随机分为4组,每组6个重复,每个重复1头牛。对照组饲喂基础饲粮,试验组分别在基础饲粮中添加0.5%、1.0%和1.5%的复方中药。试验期30 d。结果显示:整个试验期间牛舍内环境温湿指数(THI)大于72,牛处于热应激状态。在试验第20、30 d,1.0%组和1.5%组牛的呼吸频率显著低于对照组(P<0.05)。与对照组相比,1.0%组牛的干物质采食量和平均日增重显著升高(P<0.05),0.5%和1.0%组的料重比显著降低(P<0.05);1.0%组的总蛋白(TP)、白蛋白(ALB)、球蛋白(GLB)含量、总抗氧化能力(T-AOC)以及谷胱甘肽过氧化物酶(GSH-Px)、超氧化物歧化酶(SOD)活性显著升高(P<0.05),尿素氮(BUN)、葡萄糖(GLU)和丙二醛(MDA)的含量显著降低(P<0.05);1.0%和1.5%组的免疫球蛋白G (IgG)和白细胞介素-6 (IL-6)含量显著升高(P<0.05)。研究表明,饲粮中添加复方中药可以改善肉牛的热应激反应,添加量以1.0%效果较好。The purpose of this experiment was to investigate the effects of compound Chinese herbal on physiological indexes,growth performance,and serum biochemical indexes of beef cattle under heat stress.Twenty-four fattening Xia'nan cattle with good body condition and similar body weight were randomly divided into four groups,with six replicates in each group and one cattle in each replicate.The control group was fed with a basal diet,while the experimental group were fed the basal diet supplemented with 0.5%,1.0%and 1.5%compound Chinese herbal,respectively.The trial period was 30 days.The results showed that the THI in the cowshed was greater than 72 during the whole test period,and the cattle were in a state of heat stress.On the 20th and 30th day,the respiratory rate of 1.0%group and 1.5%group was significantly lower than that of the control group(P<0.05).Compared with the control group,the dry matter intake and average daily gain of 1.0%group increased significantly(P<0.05),and the feed-to-weight ratio of 0.5%group and 1.0%group decreased significantly(P<0.05).Compared with the control group,the concentrations of TP,ALB,GLB,T-AOC,and GSH-Px,SOD activities in 1.0%group increased significantly(P<0.05),while the concentrations of BUN,GLU,and MDA decreased significantly(P<0.05),and the concentrations of IgG and IL-6 in 1.0%group and 1.5%group increased significantly(P<0.05).The results show that adding compound Chinese herbal to diet can improve the heat stress response of beef cattle,and the better effect is 1.0%.

关 键 词：复方中药 热应激 肉牛 生理指标 生长性能 血清生化指标 

分 类 号：S823[农业科学—畜牧学]