[Domestication-related behavior as a factor for the long-term adaptation of the sheep hypothalamic-pituitary-adrenocortical system to social isolation].

Abstract excerpt

The reaction of the hypothalamic-pituitary-adrenocortical axis (HPA) to social isolation from the herd was studied in 45 ewes of the Altaian breed at the age of 12, 16, and 27 months. The animals belonged to either "wild" or "domesticated" phenotypes which contrasted in the character of feeding and defensive responses to a human. The basal corticoid level in animals of both behavioral phenotypes was similar. The...

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