Romeyer A, Poindron P, Porter R H, Levy F, Orgeur P
Laboratoire de Comportement Animal, URA INRA/CNRS 1291, Nouzilly, France.
Physiol Behav. 1994 Feb;55(2):395-400. doi: 10.1016/0031-9384(94)90153-8.
To investigate the establishment of offspring recognition in mother goats, 11 females were subjected to two successive 5-min tests with their own kid and an alien, 2 h 30 min postpartum. All mothers accepted their own kid, while nine rejected the alien. This suggests that in goats, 2.5 h are sufficient for the development of an exclusive bond with the kid. We also studied the role of physiological factors mediating maternal bonding in this species. Eight of the nine goats that rejected alien kids were, therefore, submitted to 5 min of vaginocervical stimulation (VCS) immediately following the selectivity tests. Of these eight goats, five changed their behavior after VCS and accepted the alien kid (0/8 before VCS vs. 5/8 after VCS, p = 0.031). Thus, VCS appears to reduce rejection behavior towards alien kids while resulting in a significant increase in their rate of acceptance. Underlying physiological mechanisms by which VCS may act are discussed.
为了研究母羊对后代识别的建立过程，11只母羊在产后2小时30分钟时，分别与自己的羔羊和一只陌生羔羊进行了两次连续5分钟的测试。所有母羊都接受了自己的羔羊，而9只母羊拒绝了陌生羔羊。这表明在山羊中，2.5小时足以与羔羊建立排他性的联系。我们还研究了介导该物种母性联系的生理因素的作用。因此，在这9只拒绝陌生羔羊的母羊中，有8只在选择性测试后立即接受了5分钟的阴道宫颈刺激（VCS）。在这8只母羊中，有5只在VCS后改变了行为并接受了陌生羔羊（VCS前为0/8，VCS后为5/8，p = 0.031）。因此，VCS似乎减少了对陌生羔羊的拒绝行为，同时使其接受率显著提高。文中讨论了VCS可能起作用的潜在生理机制。
