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首页> 外文期刊>Applied Animal Behaviour Science >Housing, ease of handling and minimising inter-pig aggression at mixing for nursery to finishing pigs as reported in a survey of North American pork producers
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Housing, ease of handling and minimising inter-pig aggression at mixing for nursery to finishing pigs as reported in a survey of North American pork producers

机译：房屋，易于处理和最小化养殖幼儿园的猪间侵略，以完成北美猪肉生产商的调查报告

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摘要

Inter-pig aggression is a welfare issue that has undergone extensive research. Although management techniques have proven useful in minimising aggression in research settings, it is not known how often these are used on farm. One objective of an online survey of North American pork producers was to learn about the housing, ease of handling, and management of nursery to finishing pigs, including what techniques were used to minimise aggression, how useful they were perceived to be and what were potential barriers to their use. Respondents were given a list of techniques to select which ones they used, and indicate how useful they perceived them to be on a five-point scale ('very useful' to 'not useful at all'). A step-wise binomial logistic regression was used to analyse the association between other factors and whether or not respondents reported that at least one technique was used. Respondents (n = 298), had nursery (11,604 4032, range: 1-950,000) and/or finishing pigs (18,999 5789, range: 2-1,500,000), or did not currently have pigs but answered the questions, at the time the survey was completed. Some had pigs of both stages (n = 181), and some had just nursery (n = 24), or finishing (n = 89) pigs. When asked if they regularly re-grouped unfamiliar pigs, 36% of all respondents selected yes (33% at nursery, 25% at finishing). Of all respondents, 53% reported using at least one technique to minimise regrouping aggression. Techniques reported from most to least useful included: pre-weaning piglet socialisation (n = 19), using mixed weight pens (n = 9), night-time mixing (n = 50), mixing all pigs to a new pen (n = 108), barriers (n = 25), using specific mixing pens (n = 21), odour masking agents (n = 38), pre-exposure in a neighbouring pen (n = 45), and enrichment devices (n = 41). After stepwise selection, the best regression model for predicting the odds of using at least one technique included the factor pig stage (nursery, finisher, or both), as farms specialising in either nursery (P & 0.001) or finishing pigs (P & 0.001) only, had increased log odds of using a technique. Those that did not mix regularly had reduced odds (P & 0.001) of using a technique, and those that used bedding tended to have increased odds of using a technique (P = 0.08). Overall, producers avoided mixing unfamiliar pigs, but for systems in which regular mixing was used, techniques were more likely to be implemented to help minimise aggression. However, over a third of respondents who reported that they did not regularly mix at any stage, still indicated that they used at least one technique.
机译：猪间侵略是一种经历广泛研究的福利问题。虽然管理技术已经证明可用于最小化研究设置中的侵略，但尚不知道这些在农场上使用的频率。北美猪肉生产商在线调查的一个目标是了解托儿所的住房，易于处理和管理，包括用于完成猪的技术，包括最大限度地减少侵略的技术，他们被认为是有用的，以及潜在的潜力他们使用的障碍。受访者获得了选择他们使用的技术列表，并指出他们对五分比例（“非常有用”来说，他们认为它们是有用的。逐步的二项式逻辑回归用于分析其他因素之间的关联以及受访者是否报告了至少一种技术。受访者（n = 298），有托儿所（11,604 4032，范围：1-950,000）和/或精加工猪（18,999 5789，范围：2-1,500,000），或者目前没有猪，但在时期回答问题调查已完成。有些人有两个阶段的猪（n = 181），有些只是幼儿园（n = 24），或完成（n = 89）猪。当被问及他们是否定期重新分组不熟悉的猪时，所有受访者的36％选择是（托儿所33％，完成25％）。在所有受访者中，53％的人报告使用至少一种技术来最大限度地减少重新组合的侵略。从大多数最重要的技术报告：使用混合重量（n = 9），夜间混合（n = 50），将所有猪与新笔混合（n = 108），屏障（n = 25），使用特定的混合术（n = 21），气味掩蔽剂（n = 38），在相邻笔（n = 45）中的预曝光和富集装置（n = 41） 。在逐步选择之后，用于预测使用至少一种技术的几率的最佳回归模型包括因子猪阶段（苗圃，整理剂或两者），作为专门从事苗圃（P＆amp; 0.001）或精加工猪的农场（ P＆amp; LT; 0.001）仅增加了使用技术的日志几率。不定期混合的那些使用技术的赔率（P＆amp; 0.001），以及使用床上用品的人往往具有使用技术的几率增加（p = 0.08）。总体而言，生产者避免混合陌生的猪，但对于使用定期混合的系统，更有可能实施技术以帮助最小化侵略。然而，超过三分之一的受访者报告说他们没有定期在任何阶段混合混合，仍然表明他们至少使用了一种技术。

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  • 来源
    《Applied Animal Behaviour Science》 |2018年第2018期|共8页
  • 作者

    Ison S. H.; Bates R. O.; Ernst C. W.; Steibe J. P.; Siegford J. M.;

  • 作者单位

    Michigan State Univ Dept Anim Sci 474 S Shaw Lane Room 1290 E Lansing MI 48824 USA;

    Michigan State Univ Dept Anim Sci 474 S Shaw Lane Room 1290 E Lansing MI 48824 USA;

    Michigan State Univ Dept Anim Sci 474 S Shaw Lane Room 1290 E Lansing MI 48824 USA;

    Michigan State Univ Dept Anim Sci 474 S Shaw Lane Room 1290 E Lansing MI 48824 USA;

    Michigan State Univ Dept Anim Sci 474 S Shaw Lane Room 1290 E Lansing MI 48824 USA;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 动物学;
  • 关键词

    Aggression; Farmers; Perception; Pig; Survey;

    机译：侵略;农民;感知;猪;调查;

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