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Laboratory macaques: when to wean? (Special Issue: The welfare of laboratory primates.)
Contributor(s):: Prescott, M. J., Nixon, M. E., Farningham, D. A. H., Naiken, S., Griffiths, M. A.
Linking the social environment to illness in farm animals
Contributor(s):: Proudfoot, K. L., Weary, D. M., Keyserlingk, M. A. G. von
Measuring empathic responses in animals
Contributor(s):: Edgar, J. L., Nicol, C. J., Clark, C. C. A., Paul, E. S.
The welfare and suitability of parrots as companion animals: a review
Contributor(s):: Engebretson, M.
Altered aggression in different sized groups of crayfish supports a dynamic social behaviour model
Contributor(s):: Patullo, B. W., Baird, H. P., Macmillan, D. L.
Living in groups with conspecifics can increase an animal's fitness in the wild. A social environment may also be imposed by commercial farming industries. One important measure of competition and group dynamics is the level of aggressive interaction. This can also influence the level of damage...
Behavioural and physiological consequences of acute social defeat in growing gilts: effects of the social environment
Contributor(s):: Ruis, M. A. W., Groot, J. de, Brake, J. H. A. te, Ekkel, E. D., Burgwal, J. A. van de, Erkens, J. H. F., Engel, B., Buist, W. G., Blokhuis, H. J., Koolhaas, J. M.
Endocrine, behavioural and immunological processes, together with body growth, were evaluated in gilts that were defeated at 10 weeks of age in resident-intruder tests. Immediately after defeat, gilts were either separated from or reunited with a familiar conspecific (litter-mate; always a...
Early social experience influences the development of stereotypic behaviour in captive-born striped mice Rhabdomys
Contributor(s):: Jones, M. A., Mason, G., Pillay, N.
The early life experience of captive animals, in combination with their genetic inheritance, can predispose or promote the development of stereotypic behaviour in later life. To investigate the early social effects of weaning age and the presence/absence of the father on the development of...
Separation distress in artificially-reared lambs depends on human presence and the number of conspecifics
Contributor(s):: Rault, J. L., Boissy, A., Boivin, X.
The way animals perceive partners, including humans, is yet relatively unknown. Research has shown that humans can provide social support or act as social substitute for domestic animals. Nonetheless, studies investigating the perception of humans by domestic animals in their social environment,...
Disentangling the effects of weaning stressors on piglets' behaviour and feed intake: changing the housing and social environment
Contributor(s):: Hotzel, M. J., Souza, G. P. P. de, Costa, O. A. D., Machado Filho, L. C. P.
Under farming conditions piglets generally face several simultaneous stressors including separation from the dam, an abrupt change from milk to a solid diet and changes in the social and housing environments. In this study we tested the hypothesis that increasing the number of environmental...
The social environment influences the behavioural responses of beef cattle to handling
Contributor(s):: Grignard, L., Boissy, A., Boivin, X., Garel, J. P., Le Neindre, P.
In cattle, a gregarious species, the social group influences individual stress responses to fear-eliciting situations. As handling can be stressful for farm animals, it can be hypothesized that social partners modify individual responses to handling. The present experiment investigated the effect...
Changes in social environment induce higher emotional disturbances than changes in physical environment in quail
Contributor(s):: Valance, D., Boissy, A., Despres, G., Arnould, C., Galand, C., Favreau, A., Constantin, P., Leterrier, C.
In intensive rearing, birds are exposed to frequent changes in both their social and physical environments, and this can have an impact on animal welfare under commercial conditions. The aim of the present study was to compare the emotional responses induced by social and non-social changes and...
Emotional reactivity of Japanese quail chicks with high or low social motivation reared under unstable social conditions
Contributor(s):: Schweitzer, C., Arnould, C.
Repeated encounters with unfamiliar conspecifics in large groups of domestic birds create a potentially stressful social environment which can affect the birds' emotional reactivity and consequently their welfare. As social relationships between young quail are particularly influenced by their...
Group housing exerts a positive effect on the behaviour of young horses during training
Contributor(s):: Sondergaard, E., Ladewig, J.
In an experiment on the effects of social environment and training on the human-animal relationship, 20 horses were handled according to a defined schedule. Eight horses were housed singly and 12 horses were housed in four groups of 3 horses. Horses were handled three times per week in 10 min...
Differences in temperament traits between crib-biting and control horses
Contributor(s):: Nagy, K., Bodo, G., Bardos, G., Banszky, N., Kabai, P.
Recent studies have suggested that crib-biting in horses is associated with diminished capacity of learning or coping with stress. Such findings raise the question whether trainability, which is fundamentally important in practice, could also be affected by stereotypic behaviour. Trainability of...
Maternal care and foal social relationships in a herd of Sorraia horses: influence of maternal rank and experience
Contributor(s):: Heitor, F., Vicente, L.
The influence of maternal rank and experience on patterns of maternal care and social relationships of foals were investigated in a managed herd of Sorraia horses, Equus caballus. Social interactions and spatial relationships of 13 foals (seven females and six males) born to seven mares were...
Validation of an Animal Needs Index for cattle using Test Theory
Contributor(s):: Herva, T., Peltoniemi, O., Virtala, A. M.
The validity of an ANI-based welfare index for cattle, the A-Index, was evaluated using Test Theory methods described for quality of life assessments in human medicine. Content validity was considered during the modification of the Index for Finnish beef production. In total, 43 items evaluating...