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  1. A comparative study of the influence of social housing conditions on the behaviour of captive tigers ( Panthera tigris )

    Contributor(s):: Rouck, M. de, Kitchener, A. C., Law, G., Nelissen, M.

    Nowadays, zoos are increasingly concerned with animal welfare as public expectations and knowledge of the needs of captive animals increases. Although many zoos try to provide all sorts of enrichment for their big cats, the importance of social enrichment is not yet fully understood. This study...

  2. A comparison of cell-mediated immune responses in rhesus macaques housed singly, in pairs, or in groups

    Contributor(s):: Schapiro, S. J., Nehete, P. N., Perlman, J. E., Sastry, K. J.

    A variety of psychosocial factors have been shown to influence immunological responses in laboratory primates. The present investigation examined the effects of social housing condition on cell-mediated immune responses, comparing rhesus macaques (Macaca mulatta) in three housing conditions...

  3. A game of cat and house: spatial patterns and behavior of 14 domestic cats ( Felis catus ) in the home

    Contributor(s):: Bernstein, P. L., Strack, M.

    A descriptive study of the use of space and patterns of interaction of 14 unrelated, nonreproductive domestic cats (Felis catus) living together in a single-story house was undertaken, since these behaviors have rarely been described for cats in this common situation.Within the house, the cats...

  4. A meta-analysis of the combined effect of housing and environmental enrichment characteristics on the behaviour and performance of pigs

    Contributor(s):: Averos, X., Brossard, L., Dourmad, J. Y., Greef, K. H. de, Edge, H. L., Edwards, S. A., Meunier-Salaun, M. C.

    To quantify the combined effect of housing conditions and environmental enrichment on the behaviour and performance of pigs, a meta-analysis was performed using information from 45 experiments in 42 published manuscripts. Multiple regression models were applied to evaluate the effects of space...

  5. A meta-analysis on the effects of the housing environment on the behaviour, mortality, and performance of growing rabbits

    Contributor(s):: Sommerville, R., Ruiz, R., Averos, X.

  6. A note on the behavior of feral cattle in the Chihuahuan Desert of Mexico

    Contributor(s):: Hernandez, L., Barral, H., Halffter, G., Colon, S. S.

    Habitat use and behaviour of three feral cows were compared to three domestic cows in the Mapimi Biosphere Reserve, Chihuahuan Desert, where approximately 1000 feral cows were found on 151 000 ha. Feral cattle were found to represent an ecotype adapted to desert conditions. In comparison with...

  7. A review of welfare in cattle, sheep and pig lairages, with emphasis on stocking rates, ventilation and noise

    Contributor(s):: Weeks, C. A.

    Appropriate space allowances for animals are yet to be specifically determined for lairage. Space allowances that may be suitable for animals in lairage are suggested, based on reviewed studies of animals in transport, lairage and on farm. The longer animals are in lairage the more space they...

  8. A survey of the attitudes of stakeholders in the zoo industry towards the husbandry requirements of captive Great Apes

    Contributor(s):: Fernie, A. C., Tribe, A., Murray, P. J., Lisle, A., Phillips, C. J. C.

  9. Aggression and welfare in a common aquarium fish, the Midas cichlid

    Contributor(s):: Oldfield, R. G.

    Many species of fishes are aggressive when placed in small aquaria. Aggression can negatively affect the welfare of those individuals toward whom it is directed. Animals may behave aggressively in order to defend resources such as food, shelter, mates, and offspring. The decision to defend...

  10. Aggressiveness in the domestic fowl: Distance versus 'attitude'

    Contributor(s):: Rodriguez-Aurrekoetxea, A., Estevez, I.

    It has been suggested that invasion of the personal space by flock members is the main trigger of aggressive interactions in the domestic fowl ( Gallus gallus domesticus). In large and dense groups of birds high frequency of attacks should be expected as the chances of invading the personal space...

  11. 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...

  12. Application of the Welfare Quality animal welfare assessment system in Finnish pig production, Part II: Associations between animal-based and environmental measures of welfare

    Contributor(s):: Munsterhjelm, C., Heinonen, M., Valros, A.

    This study aimed to establish associations between the environment and animal-based measures of welfare collected on 158 Finnish farms according to the Welfare Quality systems for pigs. The data consisted of 95 welfare assessments in fattening pigs and 103 in sows, including suckling piglets....

  13. Assessing pig welfare at stunning in Swedish commercial abattoirs using CO<sub>2</sub> group-stun methods

    Contributor(s):: Atkinson, S., Velarde, A., Llonch, P., Algers, B.

  14. Assessing synchrony in groups: Are you measuring what you think you are measuring?

    Contributor(s):: Asher, Lucy, Collins, Lisa M.

    Behavioural synchrony has been a popular topic of research in group living animals, but has so far lacked a standard approach. Previous studies have varied greatly in the number of behavioural states they have considered and the size of groups investigated. Here, a model of behavioural synchrony...

  15. Assessment of sub-grouping behaviour in pigs housed at different group sizes

    Contributor(s):: Turner, S. P., Horgan, G. W., Edwards, S. A.

    The group size within which a dominance hierarchy can function without modification is finite. Sub-grouping behaviour may fragment a large group into smaller units in which a dominance hierarchy may be preserved. This could be achieved by spatial localization, as indicated by the existence of...

  16. Behavioural responses of Argentine coastal dusky dolphins Lagenorhynchus obscurus to a biopsy pole system

    Contributor(s):: Loizaga de Castro, R., Hoelzel, A. R., Crespo, E. A.

  17. Behavioural, endocrine and immune consequences of mixing in weaned piglets

    Contributor(s):: Merlot, E., Meunier-Salaun, M. C., Prunier, A.

    Mixing piglets at weaning increases plasma cortisol concentrations and agonistic behaviour. In contrast to what is observed in older pigs, studies failed to show any effect of social environment on other behavioural variables or on immune function. The lack of effect of mixing may not reflect an...

  18. Case control study on environmental, nutritional and management-based risk factors for tail-biting in long-tailed pigs

    Contributor(s):: Kallio, P. A., Janczak, A. M., Valros, A. E., Edwards, S. A., Heinonen, M.

  19. Choice of perch characteristics by laying hens in cages with different group size and perching behaviours

    Contributor(s):: Chen, Dong-hua, Bao, Jun, Meng, Fan-yu, Wei, Chun-bo

    Provision of perches in cages could improve behaviour and physical conditions of laying hens. This study was conducted to investigate the choice of perch characteristics (shape, width, material and height) by caged hens under different group size, and to understand the choice by the perching...

  20. Comparison of the behaviour of piglets raised in an artificial rearing system or reared by the sow

    Contributor(s):: Rzezniczek, M., Gygax, L., Wechsler, B., Weber, R.

    Over the last 15 years, rising sow fertility has led to a considerable increase in litter size. As a consequence, the number of live born piglets may outnumber the number of functional teats, and surplus piglets are removed from the sow at the age of 3-6 days and fed with artificial milk. The...