| 温湿指数(THI)对荷斯坦牛产奶量影响的研究 |
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| 引用本文： | 田萍,蔡森,姚武群.温湿指数(THI)对荷斯坦牛产奶量影响的研究[J].中国奶牛,2002(4):13-15. |
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| 作者姓名： | 田萍 蔡森 姚武群 |
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| 作者单位： | 佛山科学技术学院农牧学院动物科学系,南海大沥,528231 |
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| 摘 要： | 本试验主要研究了温湿指数(THI)对奶牛产奶量的影响,同时分析了温湿指数对奶牛的受胎率和健康(子宫炎、乳房炎发病率)方面的影响。试验表明:产奶量随温湿指数的增大而下降;平均温湿指数与平均产奶量为负相关,相关系数r=0.8478;随着温湿指数的不断上升,奶牛的受胎率明显下降,乳房炎、子宫炎等疾病的发病率有上升趋势。
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| 关 键 词： | 温湿指数 荷斯坦牛 产奶量 受胎率 乳房炎 子宫炎 |
| 文章编号： | 1004-4264(2002)04-0013-02 |
| 修稿时间： | 2001年12月5日 |
Effect of temperature and Humidity Index (THI)on Milk Yield of Holstein |
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| Tina Ping,Cai Sem,Yao Wuqun.Effect of temperature and Humidity Index (THI)on Milk Yield of Holstein[J].China Dairy Cattle,2002(4):13-15. |
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| Authors: | Tina Ping Cai Sem Yao Wuqun |
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| Abstract: | The experiment was to investigate the effect of THI on Holstein's milk yield and healthy.The re sults were shown that milk yield decreased greatly with the in crease off THi dur ing the ex perimental period.These indi cated that there were close rela tions between THI and the Holstein's milk yield(r=-0.8478),fur thermore,with the con stant in creasing of THI ,the rate of pregnancy decreased significantly(p<0.01)and mastitis and uteritis rose to some extent. |
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| Keywords: | THI Holstein milk yield pregnancy rate mastitis uteritis |
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