Behavioral management of chimpanzees in biomedical research facilities: The state of the science

The current status of the behavioral management of chimpanzees housed in US research facilities is examined, and recent advances are described. Behavioral management includes the application of environmental enrichment, animal training, and environmental design for improving animal welfare. Authors surveyed the six major chimpanzee holding facilities and found that the vast majority of chimpanzees are […]

Vocalizations and other behavioral responses of male cheetahs (Acinonyx jubatus) during experimental separation and reunion trials

Abstract 10.1002/(SICI)1098-2361(1998)17:13.3.CO;2-8 In this study we assessed the extent of psychological attachment between male cheetahs living in same sex pairs in zoos by recording the behavior and vocalizations of two male coalitions (siblings and nonsiblings) during four experimental separations and reunions of each coalition. Both coalitions showed higher vocalization rates and walking rates during separations […]

Behavioural and cardiac responses towards conspecific distress calls in domestic pigs (Sus scrofa)

In domestic pigs, vocalisation can be an indicator of distress and negative emotional states. It might play a role in the transfer of emotion between individuals ([`]emotional contagion’ or [`]empathy’), which could result in impaired animal welfare on a group level based on the distress in an individual member of the group. The aim of […]

A review of behavioural and physiological responses of sheep to stressors to identify potential behavioural signs of distress

This paper discusses the potential for using observations of behaviour to recognise distress in sheep. The term distress is used to describe situations in which an animal is likely to be suffering, and is indicating this by overt behavioural signs. Literature on the behavioural responses of sheep to procedures that induce a physiological stress response […]

Piglets’ weaning behavioural response is influenced by quality of human–animal interactions during suckling

The aim of this study was to compare the short-term post-weaning behaviour of piglets treated either neutrally or aversively during the suckling period. A total of 24 lactating sows and their litters were housed in different rooms according to treatment. A female experimenter (P1) was in charge of feeding and cleaning from days 10 to […]

Protective mother hens: cognitive influences on the avian maternal response

We previously demonstrated that domestic hens, Gallus gallus domesticus, show behavioural and physiological responses when witnessing mild chick distress, and possess the underlying foundations of emotional empathy. However, no studies have determined how cognitive influences affect empathic processes in birds. A fundamental question is whether a mother hen’s response to chick distress is mediated by […]

Filial attachment in sheep: Similarities and differences between ewe-lamb and human-lamb relationships

Animals develop relationships with intra- and interspecific partners, including humans. In some cases this can lead to strong emotional bonds indicating the existence of attachment. The sheep is well known to develop various forms of social attachment (mothers towards young, lambs towards siblings). The relationship they can develop with humans is much less understood. In […]