Emotion, Pain, & Sentience

Behavioural reactivity of ewes and lambs during partial and total social isolation

This work investigated the differences in the reactivity of Sarda (primiparous n = 18, multiparous n = 17) and Dorset (multiparous n = 8) breeds of sheep and their singleton lambs to two challenging test situations involving a mother-lamb partial...

Year Published: 2015Topics: Emotion, Pain, & Sentience, Welfare AssessmentAnimal Type: Sheep

Citation: Barnard, S., Matthews, L. R., Messori, S., et al. 2015. Behavioural reactivity of ewes and lambs during partial and total social isolation. Applied Animal Behaviour Science 163, 89-97.

Behavioural expression of positive anticipation for food or opportunity to play in lambs

Anticipatory behaviours may serve a useful tool in studying positive emotional states in animals. This study aimed to investigate if lambs express anticipatory behaviours for opportunities to play or a food reward and if these behaviours would differ depending on...

Year Published: 2015Topics: Emotion, Pain, & Sentience, Natural BehaviorAnimal Type: Sheep

Citation: Anderson, C., Yngvesson, J., Boissy, A. et al. 2015. Behavioural expression of positive anticipation for food or opportunity to play in lambs. Behavioural Processes 113, 152-158.

Crowding increases salivary cortisol but not self-directed behavior in captive baboons

Reduced space can lead to crowding in social animals. Crowding increases the risk of agonistic interactions that, in turn, may require additional physiological defensive coping mechanisms affecting health. To determine the stress induced from increased social density in a group...

Year Published: 2015Topics: Abnormal/Problematic Behavior, Emotion, Pain, & Sentience, Stocking DensityAnimal Type: Baboon, Nonhuman Primate

Citation: Pearson, B. L., Reeder, D. M., Judge, P. G. 2015. Crowding increases salivary cortisol but not self-directed behavior in captive baboons. American Journal of Primatology 77, 462-67.