Sheep exhibit a positive judgement bias and stress-induced hyperthermia following shearing

The detection of judgement biases may improve welfare evaluations by measuring the cognitive component, particularly the valence, of affective states. Judgement biases have been successfully demonstrated in various laboratory animals but only recently in sheep. Chronic stressors have been found to induce a negative judgement bias and a short-term stressor (restraint and isolation stress) a […]