| 热应激对荷斯坦奶牛体温和呼吸的影响 |
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| 引用本文： | 姚焰础,江山,肖融,黄健,杜瑞平,高民.热应激对荷斯坦奶牛体温和呼吸的影响[J].中国畜牧杂志,2012,48(11):59-62,75. |
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| 作者姓名： | 姚焰础 江山 肖融 黄健 杜瑞平 高民 |
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| 作者单位： | 1. 重庆市畜牧科学院动物营养研究所,重庆荣昌,402460
2. 内蒙古农牧业科学院动物营养研究所,内蒙古呼和浩特,010030 |
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| 基金项目： | 国家公益性行业(农业)科研专项经费项目(200903003);重庆市一般攻关项目(11603) |
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| 摘 要： | 本试验旨在研究热应激对不同泌乳阶段奶牛直肠温度、皮肤温度和呼吸频率的影响。选用不同泌乳阶段、胎次相近的荷斯坦奶牛18头,按泌乳天数分为泌乳前期、泌乳中期和泌乳后期3组,每组6个重复,根据牛舍温湿指数(THI)变化情况,进行热应激与非热应激的自身对照试验。结果表明:热应激极显著增加各泌乳阶段奶牛的直肠温度、皮肤温度和呼吸频率(P<0.01);THI与各泌乳阶段奶牛的直肠温度、皮肤温度、呼吸频率呈显著正相关(P<0.05);在同一环境下,不同泌乳阶段奶牛的直肠温度、皮肤温度及呼吸频率无显著差异(P>0.05)。热应激严重影响奶牛的直肠温度、皮肤温度和呼吸频率,与泌乳中、后期奶牛相比,热应激对泌乳前期奶牛的影响趋于较大。
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| 关 键 词： | 热应激 体温 呼吸 奶牛 |
Effect of Heat Stress on Body Temperature and Respiration of Dairy Cows |
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| YAO Yan-chu
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JIANG Shan
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XIAO Rong
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HUANG Jian
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DU Rui-ping
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GAO Min.Effect of Heat Stress on Body Temperature and Respiration of Dairy Cows[J].Chinese Journal of Animal Science,2012,48(11):59-62,75. |
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| Authors: | YAO Yan-chu JIANG Shan XIAO Rong HUANG Jian DU Rui-ping GAO Min |
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| Institution: | 1.Institute of Animal Nutrition,Chongqing Academy of Animal Sciences,Chongqing Rongchang 402460,China; 2.Institute of Animal Nutrition,Inner Mongolia Academy of Agricultural and Animal Sciences,Inner Mongolia Huhhot 010030,China) |
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| Abstract: | The experiment was conducted to study the effect of heat stress on rectal temperature,skin temperature and respiratory rate of dairy cows.Eighteen Holstein dairy cows were divided into three groups,including early lactation stage,mid-lactation stage and late lactation stage,with six cows in each group.According to THI(temperature-humidity index) of the cowhouse,each group was compared with itself as heat stress or non-heat stress.The results showed that heat stress could very significantly increase the rectal temperature,skin temperature and respiratory rate of dairy cows(P<0.01);and these indicators highly correlated with THI.The rectal temperature,skin temperature and respiratory rate in different lactation stages were not significant(P>0.05).Heat stress had seriously effect on body temperature and respiration of dairy cows.Compared with the middle and late lactation,the effect of heat stress on early lactation tended to be higher. |
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| Keywords: | heat stress body temperature respiration cow |
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