Journal article

THE EFFECTS OF DESIGN OF INDIVIDUAL STALLS ON THE SOCIAL-BEHAVIOR AND PHYSIOLOGICAL-RESPONSES RELATED TO THE WELFARE OF PREGNANT PIGS

JL BARNETT, PH HEMSWORTH, CG WINFIELD

APPLIED ANIMAL BEHAVIOUR SCIENCE | ELSEVIER SCIENCE BV | Published : 1987

Abstract

Plasma free-corticosteroid concentrations, aggressive behaviour and levels of motivation to socially interact and explore a novel environment were observed in an experiment to test the hypothesis that the chronic stress response previously observed in tether housed pigs may have been due to unresolved aggression between adjacent pigs, and was attributable to the design of the stall. Twenty-five pregnant gilts were housed in 4 treatments: unmodified tether stalls; modified tether stalls (designed to reduce aggressive interactions between adjacent pigs by the addition of steel mesh to part of the stall division); cage stalls (also with mesh divisions); and a group. Gilts in the unmodified teth..

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