Veissier I, Stefanova I
INRA, Centre de Clermont-Ferrand - Theix, Saint-Genès Champanelle, France.
Behav Processes. 1993 Aug;30(1):75-82. doi: 10.1016/0376-6357(93)90013-H.
This work was aimed at finding evidence of observational learning in sheep. The task to be learned was that of suckling milk from a bucket provided with teats. Lambs were reared in groups of either four neonates and an older lamb accustomed to artificial suckling (14 experimental lambs) or five neonates (16 controls). One-hour observations were made five times a day. The lambs that learned were grouped and observed for three hours once a week. All experimental lambs learned within three days as compared to nine for the 16 controls. Experimental lambs moved and sniffed or sucked the bucket more often than the controls (2.0 ± 1.5 vs. 1.5 ± 1.0% time spent moving, 7.1 ± 6.2 vs. 1.6 ± 1.8 sniffing/hour, 3.7 ± 3.6 vs. 1.7 ± 1.7% time spent sucking, P < 0.05). The time to first suckling was not related to these measurements, neither was it related to other behavioural traits. Learning to suckle from the teat-bucket may be a socially transmitted phenomenon, and not only by enhancement of investigation.
这项研究旨在寻找绵羊观察性学习的证据。待学习的任务是从配有奶嘴的桶中吸食牛奶。羔羊被分成两组饲养，一组是四只新生羔羊和一只习惯人工哺乳的年长羔羊（14只实验羔羊），另一组是五只新生羔羊（16只对照羔羊）。每天进行五次一小时的观察。对学会的羔羊进行分组，每周观察一次，每次三小时。与16只对照羔羊中的9只相比，所有实验羔羊都在三天内学会了。实验羔羊比对照羔羊更频繁地靠近并嗅或吸食桶（移动时间占比：2.0±1.5%对1.5±1.0%，每小时嗅的次数：7.1±6.2次对1.6±1.8次，吸食时间占比：3.7±3.6%对1.7±1.7%，P<0.05）。首次吸食时间与这些测量结果无关，也与其他行为特征无关。从带奶嘴的桶中学习吸食可能是一种社会传播现象，而不仅仅是通过加强探索来实现。
