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  1. Leaving home: a study of laboratory mouse pup independence

    Contributor(s):: Bechard, A., Mason, G.

    Juvenile wild house mice leave their mothers at 8 weeks (+). In contrast, laboratory strains of mice (lab mice) are typically 'weaned' at postnatal day (PND) 21. Lab mice might mature faster than their wild forebears; but if they do not, standard laboratory weaning likely involves...

  2. Nesting behaviour of hens: effects of experience on motivation

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

    The motivation of domestic hens, that have been housed in conventional wire cages, to use well-defined, littered nests was compared with that of hens with prior experience of nests. The quality of nesting cues (trials with and without an enclosed nest box) was varied and the performance of and...

  3. Rabbit nest construction and its relationship with litter development

    Contributor(s):: Canali, E., Ferrante, V., Todeschini, R., Verga, M., Carenzi, C.

    The influence of maternal behaviour before parturition and of the microclimate on the development of young rabbits was evaluated for 3 successive litters of 32 New Zealand White rabbits. The quality of the straw nest improved from the 1st to the 3rd parturition, whereas the hair nest seemed to be...

  4. Sow preferences for farrowing under a cover with and without access to straw

    Contributor(s):: Damm, B. I., Heiskanen, T., Pedersen, L. J., Jorgensen, E., Forkman, B.

    In semi-natural environments sows often select a protected nest site at farrowing. Investigations of nest site selection under indoor conditions are scarce but suggest that sows prefer to nest and farrow under a covered area. Since feed-back from a functional nest may improve maternal behaviour...

  5. The influence of pup odour on the nest related behaviour of rabbit does ( Oryctolagus cuniculus )

    Contributor(s):: Baumann, P., Oester, H., Stauffacher, M.

    Under natural and near-to-nature conditions, rabbit does block the entrance to their nest after nursing by burrowing before they leave. This behavioural pattern serves to protect the pups from predators and is a highly evolutionary adaptive behaviours. Under commercial husbandry conditions, the...

  6. An assessment of laboratory mouse welfare in UK animal units

    Contributor(s):: Leach, M. C., Main, D. C. J.

    The welfare of conventional stock laboratory mice has been assessed in 46 UK animal units using an expert-defined welfare assessment protocol containing 119 measures of mouse welfare. These were recorded using a questionnaire and observations made during a one-day visit to each unit. The standard...

  7. Behaviour of silver foxes in traditional breeding boxes and in boxes with an entrance tunnel

    Contributor(s):: Braastad, B. O.

    The periparturient behaviour of silver-fox females inside traditional and modified breeding boxes was recorded on video tape from 24 h before to 72 h after parturition for 3 diurnal periods. 20 litters had the traditional simple breeding box, 14 litters had a box with a narrow entrance tunnel....

  8. Modulation of aggression in male mice: influence of cage cleaning regime and scent marks

    Contributor(s):: Loo, P. L. P. van, Kruitwagen, C. L. J. J., Zutphen, L. F. M. van, Koolhaas, J. M., Baumans, V.

    Group housing of male laboratory mice often leads to welfare problems due to aggressive behaviour. From a welfare perspective, individual housing is not a preferred solution to these problems - and so other ways of reducing aggression between male mice were sought. Aggression peaks after...

  9. Nest-building behaviour in male rats from three inbred strains: BN/HsdCpb, BDIX/OrIIco and LEW/Mol

    Contributor(s):: Jegstrup, I. M., Vestergaard, R., Vach, W., Ritskes-Hoitinga, M.

    Three inbred strains of male laboratory rat (BN/HsdCpb, BDIX/OrIIco and LEW/Mol) were provided with nest boxes and nest materials, and were observed for nest-building activity. After 7 days, each cage and nest box was examined. Each nest was weighed and scored for complexity, and returned to the...

  10. Operant animal welfare: productive approaches and persistent difficulties

    Contributor(s):: Patterson-Kane, E. G., Pittman, M., Pajor, E. A.

    Operant procedures occupy a prominent role within animal welfare science because they provide information about the strength of animals' preferences. It is assumed that strongly motivated choices commonly indicate conditions necessary for uncompromised welfare. A review of the literature shows...

  11. Pituitary-adrenal activation in pre-parturient pigs ( Sus scrofa ) is associated with behavioural restriction due to lack of space rather than nesting substrate

    Contributor(s):: Jarvis, S., Calvert, S. K., Stevenson, J., Leeuwen, N. van, Lawrence, A. B.

    Previous research has shown that preparturient primiparous pigs (gilts) housed in behaviourally restrictive farrowing crates without straw redirect their nest-building behaviour to non-manipulable substrates such as the bars of the crate. These gilts also show elevated plasma adrenocorticotropic...

  12. The behavioural repertoire of non-breeding group-housed female laboratory rabbits ( Oryctolagus cuniculus )

    Contributor(s):: Held, S. D. E., Turner, R. J., Wootton, R. J.

    Many studies on group-housing of laboratory rabbits to date have focused on management aspects and economic implications. Our aim here is to provide behavioural background information for future investigations focusing on behavioural and welfare aspects of group-housing. In the present study, we...

  13. The value of environmental resources to domestic hens: a comparison of the work-rate for food and for nests as a function of time

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

    This study was conducted to investigate feeding motivation and perching motivation in laying hens. The importance of a nest box during the prelaying period was compared with the importance of food following a period of deprivation. 12 Isa Brown hens (Gallus gallus domesticus) were trained to open...