Mekosh-Rosenbaum V, Carr W J, Goodwin J L, Thomas P L, D'Ver A, Wysocki C J
Beaver College, Glenside, PA 19038.
Physiol Behav. 1994 Mar;55(3):495-9. doi: 10.1016/0031-9384(94)90106-6.
During individually administered 5-min tests conducted in a neutral cage, four age groups (n = 10 males and 10 females per group) of purebred beagles reacted to bedding from their home cage vs. bedding from another litter of the same age. The 20-24-day-old males and females preferred (p < 0.05) home cage bedding over strange cage bedding. Those aged 31-36 days or 66-72 days showed no reliable preference for either type of bedding. Among pups aged 52-56 days, the males preferred (p < 0.05) strange cage bedding, but the females showed no reliable preference. Chemosensory cues are sufficient as mediators of kin recognition in beagles, but their reactions to such cues vary with age-dependent factors, some stemming from changes in the strength of the mother-litter bond. The dogs providing the two types of bedding lived in the same room and on the same diet. Therefore, kin recognition could not have been mediated by different chemosensory cues produced by variations in these environmental factors.
在一个中性笼子里进行的为期5分钟的个体测试中，四个年龄组（每组10只雄性和10只雌性）的纯种比格犬对来自其家笼的垫料与来自同年龄另一窝的垫料做出了反应。20 - 24日龄的雄性和雌性比格犬更喜欢（p < 0.05）家笼垫料而非陌生笼子的垫料。31 - 36日龄或66 - 72日龄的比格犬对两种垫料均未表现出明显偏好。在52 - 56日龄的幼犬中，雄性更喜欢（p < 0.05）陌生笼子的垫料，但雌性未表现出明显偏好。化学感应线索足以作为比格犬亲缘识别的介质，但其对这些线索的反应因年龄相关因素而异，部分因素源于母仔关系强度的变化。提供两种垫料的犬只生活在同一房间且饮食相同。因此，亲缘识别不可能由这些环境因素变化产生的不同化学感应线索介导。
