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Tags: Crowding

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  1. Using Free Adoptions to Reduce Crowding and Euthanasia at Cat Shelters: An Australian Case Study

    Contributor(s):: Heather M. Crawford, Joseph B. Fontaine, Michael C. Calver

    Many healthy adult cats are euthanised annually in shelters, and novel approaches are required to reduce euthanasia rates. Waiving adoption fees is one such approach. However, concerns that less responsible owners will be attracted to free events persist among welfare groups. We evaluated...

  2. Chronic stress in dogs subjected to social and spatial restriction. I. Behavioral responses

    Contributor(s):: Beerda, Bonne, Schilder, Matthijs B. H., Van Hooff, Jan A. R. A. M., De Vries, Hans W., Mol, Jan A.

  3. Effects of crowding and access to perches on aggressive behaviour in broilers

    Contributor(s):: Pettit-Riley, R., Estevez, I., Russek-Cohen, E.

    To test the hypothesis that the frequency of aggression in broiler chickens will be lower in response to increased crowding and perch availability, groups of broilers were observed from 2 to 6 weeks of age. A total of 2424 broilers were used in the study. Both the type of aggression and the pen...

  4. Effects of density on displacement, falls, injuries, and orientation during horse transportation

    Contributor(s):: Collins, M. N., Friend, T. H., Jousan, F. D., Chen, S. C.

    30 mares and 29 geldings were used to determine density effects on displacement (distance moved during a stop), falls, injuries and orientation using a single-deck, open-topped commercial semi-trailer. Each horse was assigned to 1 of 2 treatments: high density (1.28 msuperscript 2/horse with 14...

  5. Chronic stress in dogs subjected to social and spatial restriction. I. Behavioral responses

    Contributor(s):: Beerda, Bonne, Schilder, Matthijs B. H., Van Hooff, Jan A. R. A. M., De Vries, Hans W., Mol, Jan A.

  6. Effects of short- and long-term changes in spatial density on the social behaviour of captive chimpanzees ( Pan troglodytes )

    Contributor(s):: Videan, E. N., Fritz, J.

    The constraints of captivity may often require non-human primates to experience restrictions in space for both long- and short-term periods of time. The tension-reduction model predicts that great apes should increase affiliative behaviours and decrease aggressive behaviours as a coping strategy....

  7. The impact of group size on damaging behaviours, aggression, fear and stress in farm animals. (Special issue: Too many, too few: the effects of group size and density in captive animals.)

    Contributor(s):: Rodenburg, T. B., Koene, P.

    The aim of this review is to discuss the impact of group size on damaging behaviours, aggression, fear and stress in farm animals and to identify housing- and management options that can help to reduce problems caused by suboptimal group sizes. Increasing group size was found to increase the risk...

  8. Effects of density and cage size on stress in domestic cats ( Felis silvestris catus ) housed in animal shelters and boarding catteries

    Contributor(s):: Kessler, M. R., Turner, D. C.

    The influence of density and floor area on stress and the adaptation process of cats in animal shelters and boarding catteries was investigated. 63 rescued cats were observed on 113 days in a shelter at group densities of 0.3-0.9 animals/msuperscript 2. In addition, 49 rescued cats were observed...

  9. Group size and space allocation in farmed juvenile blue foxes ( Alopex lagopus )

    Contributor(s):: Ahola, L., Mononen, J., Pyykonen, T., Mohaibes, M., Hanninen, S.

    Farmed juvenile blue foxes were housed either singly, in pairs, or in quartets at a stocking density of either 0.6 m2 or 1.2 m2 per animal. The effects of group size and space allocation on physiological, behavioural and production-related parameters were assessed. The results showed that the...

  10. What causes crowding? Effects of space, facilities and group size on behaviour, with particular reference to furnished cages for hens

    Contributor(s):: Appleby, M. C.

    Theoretical models are presented of the effects of space, facilities and group size on the behaviour of chickens at high stocking densities, with relevance for all animals. The appropriateness of each model is supported by published data, although such data are scant for some important variables....