首页> 外文学位 >Effect of Grouping Strategy and Stocking Density on the Behavior of Prepartum Dairy Cows and the Association between Behavior and Periparturient Cow Health.
【24h】

Effect of Grouping Strategy and Stocking Density on the Behavior of Prepartum Dairy Cows and the Association between Behavior and Periparturient Cow Health.

机译:分组策略和放养密度对产前奶牛行为的影响以及行为与围产期奶牛健康之间的关联。

获取原文
获取原文并翻译 | 示例

摘要

The transition dairy cow is one of the highest risk animals for falling ill or dying on the dairy farm. The objectives of this thesis were:;* Determine whether providing a stable pen management affected displacements from the feed bunk and feeding behavior of prepartum Jersey dairy cows;;* Examine the effects of prepartum stocking density on social, lying and feeding behavior of prepartum Jersey cows;;* Investigate the relationship between prepartum feeding times and periparturient health disorders, first test milk yield and milk composition in Jersey cows;;* Determine whether social dominance, determined by displacements from the feed bunk prepartum and 3 different methods, was associated with health, reproduction, and milk yield of transition Jersey cows; and.;* Determine whether lying behavior was associated with postpartum health events up to 60 days in milk.
机译:过渡奶牛是奶牛场生病或死亡的最高风险动物之一。本论文的目标是:*确定稳定的围栏管理是否会影响泽西产奶牛的饲料铺位和饲喂行为; *检查产前饲养密度对泽西产前社交,躺卧和喂养行为的影响奶牛; *研究泽西奶牛的产前喂养时间与围产期健康状况,首次测试产奶量和奶成分之间的关​​系; *确定是否由饲喂上下铺的产蛋量和3种不同方法来确定社会主导地位与过渡泽西奶牛的健康,繁殖和产奶量; * *确定在长达60天的牛奶中躺卧行为是否与产后健康事件有关。

著录项

  • 作者

    Luchterhand, Karen Marie.;

  • 作者单位

    University of Minnesota.;

  • 授予单位 University of Minnesota.;
  • 学科 Animal sciences.;Behavioral sciences.
  • 学位 Ph.D.
  • 年度 2014
  • 页码 173 p.
  • 总页数 173
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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