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首页> 外文期刊>Animals >Effects of Maternal Care During Rearing in White Leghorn and Brown Nick Layer Hens on Cognition, Sociality and Fear
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Effects of Maternal Care During Rearing in White Leghorn and Brown Nick Layer Hens on Cognition, Sociality and Fear

机译：母亲护理期间的效果在白色leghorn和棕色缺口层母鸡上的认知，社会性和恐惧中的影响

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摘要

Both genetic background and maternal care can have a strong influence on cognitive and emotional development. To investigate these effects and their possible interaction, White Leghorn (LH) and Brown Nick (BN) chicks, two hybrid lines of layer hen commonly used commercially, were housed either with or without a mother hen in their first five weeks of life. From three weeks of age, the chicks were tested in a series of experiments to deduce the effects of breed and maternal care on their fear response, foraging and social motivation, and cognitive abilities. The LH were found to explore more and showed more attempts to reinstate social contact than BN. The BN were less active in all tests and less motivated than LH by social contact or by foraging opportunity. No hybrid differences were found in cognitive performance in the holeboard task. In general, the presence of a mother hen had unexpectedly little effect on behavior in both LH and BN chicks. It is hypothesized that hens from commercially used genetic backgrounds may have been inadvertently selected to be less responsive to maternal care than ancestral or non-commercial breeds. The consistent and strong behavioral differences between genetic strains highlights the importance of breed-specific welfare management processes.
机译：遗传背景和产妇护理都会对认知和情绪发展产生强烈影响。为了调查这些效果及其可能的相互作用，白色leghorn（LH）和棕色尼克（BN）雏鸡，常用于商业上的两层母鸡的杂交线，在他们的前五个星期的前五个星期内有或没有母亲母鸡。从三周的年龄来看，雏鸡在一系列实验中进行了测试，以推导出品种和产妇护理对恐惧反应，觅食和社会动机以及认知能力的影响。 LH被发现更多地探索更多，并更有尝试恢复社交联系人的社交联系。通过社会联系或通过觅食机会，所有测试中的所有测试和较少的动机不太活跃。在车板任务中没有发现杂交差异。一般来说，母鸡的存在意外对LH和BN小鸡的行为产生了影响。假设来自商业用过的遗传背景的母鸡可能已经无意中选择对母亲护理的反应而不是祖先或非商业品种。遗传菌株之间的一致性和强烈的行为差异突出了品种特定的福利管理程序的重要性。

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