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  1. Behavioural effects of social mixing at different stocking densities in prepubertal lambs

    Contributor(s):: Ruiz-de-la-Torre, J. L., Manteca, X.

    The behavioural effects of stocking density and mixing individuals from 2 different flocks were studied in 80 prepubertal lambs of about 20 kg body weight kept at either low (1 lamb/m) or high (3.3 lambs/m) stocking densities, similar to conditions experienced during transport. At both densities,...

  2. Effects of cage height and stocking density on the frequency of comfort behaviours performed by laying hens housed in furnished cages

    Contributor(s):: Albentosa, M. J., Cooper, J. J.

    Spatial restriction and low cage height can reduce the rate at which comfort activities, such as wing flaps, stretching, body shakes and tail wags, are carried out by laying hens in conventional wire cages. In this study we investigated the performance of these activities in laying hens housed in...

  3. 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...

  4. 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...

  5. Stocking density and stress induction affect production and stress parameters in broiler chickens

    Contributor(s):: Villagra, A., Ruiz de la Torre, J. L., Chacon, G., Lainez, M., Torres, A., Manteca, X.

    The objective of this paper is to analyse the effects of three different stocking densities on the production, stress and fear parameters of female broilers during a 46-day production period. Chickens were randomly distributed among nine floor pens in groups of 30 broilers with different space...

  6. The effect of pen size and an enrichment structure (elevated platform) on the performances and the behaviour of fattening rabbits

    Contributor(s):: Postollec, G., Boilletot, E., Maurice, R., Michel, V.

    The effects of a (30 cm high) elevated platform as an enrichment structure on the behaviour and performance of fattening rabbits kept in groups were investigated. Three housing systems for fattening rabbits were compared using a stocking density of 15 rabbits m-2. The rabbits were housed either...

  7. The effect of stocking density on the welfare and behaviour of broiler chickens reared commercially

    Contributor(s):: Hall, A. L.

    The effect of 2 levels of house stocking density (34 kg/m2 and 40 kg/m2) on welfare and behaviour was studied in broilers. 121 900 birds were housed in 8 flocks under commercial conditions and a range of behavioural and productivity parameters were measured to assess welfare. At the higher...

  8. The response of untamed (unbroken) ponies to conditions of road transport

    Contributor(s):: Knowles, T. G., Brown, S. N., Pope, S. J., Nicol, C. J., Warriss, P. D., Weeks, C. A.

    The response to a one-hour road journey was observed in 145 semi-feral ponies unused to handling. Ponies were transported singly or in groups of four or eight at a typical commercial 'high' stocking density or at a slightly reduced 'low' density (range 139 to 316 kg m-2). Blood samples were...

  9. Welfare of male and female broiler chickens in relation to stocking density, as indicated by performance, health and behaviour

    Contributor(s):: McLean, J. A., Savory, C. J., Sparks, N. H. C.

    The purpose of this experiment was to provide information relevant to the current debate concerning the optimization of terminal stocking density for commercial broiler production. In a modern, controlled-environment house with 24 floor pens (each 11.4 m2), 4020 day-old broilers (Ross 308) were...

  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....