...
首页> 外文期刊>Veterinarski glasnik >Improving percentage of successful first insemination using electronic detector of oestrus in a herd of Norman dairy cows
【24h】

Improving percentage of successful first insemination using electronic detector of oestrus in a herd of Norman dairy cows

机译:使用电子检测器检测诺曼奶牛群中首次发情的成功率

获取原文
           

摘要

The aim of this study was to analyze the field work of a farmer (75 milking Normandy breed cows) during the reproductive season (between the 15 of October and the 15 of February of years 1995-2002), and to compare the visual detection technique with the use of the DEC (electronic heat detector). At the same time the information that the farmer received from the DEC helped him to breed the cows in an optimum moment for AI, which consequently reduced the number of cows that would come back into heat after 3 weeks, as well as reduce the number of cows he would cull at the end of the reproductive season for reproductive reasons. In such a manner he improved his first AI success rate from year to year (1995-49%, 1996-44%, 1997-33%, 1998- 31%, 1999-16%, 2000-58%, 2001-55% and 2002-63%).
机译:这项研究的目的是分析在繁殖季节(1995-2002年10月15日至2月15日)农民(75头诺曼底奶牛)的田间工作,并比较视觉检测技术与DEC(电子热量探测器)配合使用。同时,农民从DEC获得的信息帮助他在AI的最佳时机繁殖了奶牛,从而减少了3周后重新变热的奶牛数量,并减少了出于繁殖原因,他会在繁殖季节结束时淘汰的母牛。他以这种方式逐年提高了自己的首次AI成功率(1995-49%,1996-44%,1997-33%,1998-31%,1999-16%,2000-58%,2001-55%和2002-63%)。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号