Aigueperse Nadège, Pittet Florent, Nicolle Céline, Houdelier Cécilia, Lumineau Sophie
Université de Rennes 1, UMR 6552 Ethologie Animale et Humaine, Rennes, France.
CNRS, UMR 6552 Ethologie Animale et Humaine, Rennes, France.
Dev Psychobiol. 2018 Dec;60(8):1048-1056. doi: 10.1002/dev.21597. Epub 2018 Jan 18.
Maternal behavior is known to influence the behavioral development of young. Recently, it was demonstrated that maternal behavior also differed according to sex of chicks and brood sex composition. So, here, we explored if these factors influenced behavioral development of quail chicks when they were brooded, and what characteristics of chicks and foster females could best explain this development. We studied three sets of chick pairs brooded by foster females: unisex male, unisex female, and mixed broods. We found that both emotivity profile and sociality depended on the sex: females were more reactive and less social than males. Females' emotivity profile was correlated with brood composition and foster female activity during maternal care. In males, only sociality was correlated with foster females' scores of aggressive rejection. Our results evidence that male and female chicks respond differentially to maternal behavior. This is discussed in terms of ecological and physiological constraints on development according to sex.
众所周知，母性行为会影响幼崽的行为发育。最近有研究表明，母性行为也会因雏鸡的性别和育雏性别组成而有所不同。因此，在此我们探讨了这些因素在鹌鹑雏鸡育雏期间是否会影响其行为发育，以及雏鸡和代孕雌性的哪些特征能够最好地解释这种发育情况。我们研究了由代孕雌性育雏的三组雏鸡对：单性雄性、单性雌性和混合育雏。我们发现，情绪特征和社交性都取决于性别：雌性比雄性反应更灵敏，但社交性更弱。雌性的情绪特征与育雏组成以及代孕雌性在母性照料期间的活动相关。在雄性中，只有社交性与代孕雌性的攻击性排斥得分相关。我们的结果证明，雄性和雌性雏鸡对母性行为的反应存在差异。本文根据性别对发育的生态和生理限制对此进行了讨论。
