Rolnei R. Daros, João H. C. Costa, Marina A. G. von Keyserlingk, Maria J. Hötzel, Daniel M. Weary
Abstract:Negative emotional states in humans are associated with a negative (pessimistic) response bias towards ambiguous cues in judgement tasks. Every mammalian young is eventually weaned; this period of increasing nutritional and social independence from the dam is associated with a pronounced behavioural response, especially when weaning is abrupt as commonly occurs in farm animals. The aim of the current study was to test the effect of separation from the cow on the responses of dairy calves in a judgement task. T…
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