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首页> 外文期刊>Journal of dairy research >Effect of grouping on behaviour of dairy heifers and cows in the transition period
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Effect of grouping on behaviour of dairy heifers and cows in the transition period

机译：分组对转型期乳品小母牛和奶牛行为的影响

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摘要

Regrouping dairy cows is a common feature of dairy farm management. Cows are grouped based on lactation stage, age, milk yield and other factors. Regrouping cows during the dry period (from far-off area to close up area and from close up area to the main herd) brings new challenges. This is especially true for heifers who, after being confirmed gravid, may be grouped into a new pen with dried off cows. The aims of this study were to determine how grouping affects activity, nearest neighbour relationships and aggression, and how heifers' acclimatization to a new group differs from cows. Therefore, the hypotheses were that regrouping cows has less of an effect on older cows compared to heifers, and cows' individu-ality affects acclimatization to a new group. Aggression data were recorded using a video cam-era that was directed at the feed bunk, and activity was recorded with activity monitors that were attached around the right hind leg. Synchrony and distance to nearest neighbour were recorded, as was the cows' location on the first 3 d from the day they returned to the main herd. Motion index, mean number of steps and number of lying bouts were significantly higher after calving compared to the week before calving and the difference was higher amongst heifers compared to cows (P< 0.001). Both cows and heifers lay down more in the strawyard compared to cubicle housing (P<0.01) and cows were more aggressive than heifers in both housing systems (P < 0.001 and P < 0.05, respectively). As hypothesized, heifers were more affected by regrouping and cows with more experience settled quicker to their new environment.
机译：重新组合的乳制品奶牛是奶牛场管理的共同特征。奶牛根据哺乳期，年龄，牛奶产量和其他因素进行分组。在干燥时期（从遥远的区域关闭区域和近距离区域到主要群体）的重新组合奶牛带来了新的挑战。对于在被确认的妊娠之后，这尤其如此，可以用奶牛干燥的新笔分组。本研究的目的是确定分组如何影响活动，最近的邻居关系和侵略，以及Heifers对新组的适应方式如何与奶牛不同。因此，与小母牛相比，假设的重新组合奶牛对旧奶牛的影响较少，奶牛的个人效力影响到新组的适应范围。使用指向饲料铺位的视频CAM-ERA记录侵略性数据，并记录活动的活动监视器，这些活动显示器在右后腿周围附着。录制了与最近邻居的同步和距离，从他们回到主牛群的那天起，奶牛的位置就是奶牛的位置。运动指数，在加州在产犊前的一周相比，在产犊前的一周后，平均步骤数和躺着的数量和数量显着高，并且与奶牛相比，小后母牛之间的差异较高（P <0.001）。与小隔间外壳（P <0.01）相比，奶牛和小母牛在草地上躺下更多，并且奶牛比住房系统（P <0.001和P <0.05分别）更具侵略性。如假设，小后者受到重新组合的影响，并且具有更多经验的奶牛更快地解决了他们的新环境。

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  • 来源
    《Journal of dairy research》 |2021年第1期|45-51|共7页
  • 作者

    Maria Soonberg; Marko Kass; Tanel Kaart; Rosie Barraclough; Marie J. Haskell; David R. Arney;

  • 作者单位

    Institute of Veterinary Medicine and Animal Science Estonian University of Life Sciences 51006 Tartu Estonia;

    Institute of Veterinary Medicine and Animal Science Estonian University of Life Sciences 51006 Tartu Estonia;

    Institute of Veterinary Medicine and Animal Science Estonian University of Life Sciences 51006 Tartu Estonia;

    Royal (Dick) School of Veterinary Studies and the Roslin Institute The University of Edinburgh Easter Bush Campus Roslin Midlothian EH25 9RG Scotland UK;

    Scotland's Rural College West Mains Road Edinburgh EH9 3JG Scotland UK;

    Institute of Veterinary Medicine and Animal Science Estonian University of Life Sciences 51006 Tartu Estonia;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Antagonistic behaviour; cow; grouping; heifer; transition period;

    机译：对抗行为;奶牛;分组;小母牛;过渡期;

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