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  1. Influence of cage enrichment on aggressive behaviour and physiological parameters in male mice

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

    From welfare perspective group, housing of mice is preferred over individual housing. Group housing of male laboratory mice, however, often leads to problems due to excessive aggressive behaviour. In our search for management and housing modifications to decrease aggression in group-housed male...

  2. Mental health of dogs formerly used as 'breeding stock' in commercial breeding establishments

    Contributor(s):: McMillan, F. D., Duffy, D. L., Serpell, J. A.

    Canine commercial breeding establishments (CBEs) are kennel facilities where puppies are produced in large numbers for commercial sale. In the popular media, CBEs are commonly referred to as "puppy mills" or "puppy farms." Conditions in CBEs vary widely in quality. Dogs in these facilities are...

  3. Mixed housing of different genetic lines of laying hens negatively affects feather pecking and fear related behaviour

    Contributor(s):: Uitdehaag, K. A., Rodenburg, T. B., Bolhuis, J. E., Decuypere, E., Komen, H.

    Adult laying hens from Rhode Island Red (RIR) origin both express lower levels of feather pecking and lower fear responses towards a novel object than laying hens from White Leghorn (WL) origin. The present study investigated whether mixed housing of RIR and WL laying hens would affect their...

  4. Night-time roosting in laying hens and the effect of thwarting access to perches

    Contributor(s):: Olsson, I. A. S., Keeling, L. J.

    Two groups of 26 adult Lohmann Selected Leghorn (LSL) hens were kept in pens with perches at heights of 23, 43 and 63 cm. Behaviour was observed for 60 min starting at dark period. The number of hens on each perch level was registered. Within 10 min after lights were switched off, >90% of the...

  5. Position of operant cost affects blue foxes' time budget between sand floor and mesh floor

    Contributor(s):: Koistinen, T., Orjala, H., Mononen, J., Korhonen, H. T.

    The aim of the study was to assess whether positioning of the operant cost would affect blue foxes' (Vulpes lagopus) behaviour and time budget between a mesh floor and sand floor. We built fourteen test apparatuses, six consisting of two fox cages with a mesh floor in both cages and eight with a...

  6. Preference and motivation for different diet forms and their effect on motivation for a foraging enrichment in captive Orange-winged Amazon parrots ( Amazona amazonica )

    Contributor(s):: Rozek, J. C., Millam, J. R.

    Motivation tests were conducted to assess preference strength for diet form and a cage enrichment device by Orange-winged Amazon parrots (Amazona amazonica) held in individual cages, N=10. Each cage was equipped with two trough-type feeders, one of which had a hinged lid that required lifting to...

  7. Preferences of Orange-winged Amazon parrots ( Amazona amazonica ) for cage enrichment devices

    Contributor(s):: Kim, L. C., Garner, J. P., Millam, J. R.

    Cage enrichment devices (ED), frequently termed cage "toys", are often provided to captive parrots as a means of promoting a behaviorally stimulating environment, but it is not clear whether particular properties of EDs are more effective than others in eliciting engagement with them. We tested...

  8. The effect of litter condition and depth on the suitability of wood shavings for dustbathing behaviour

    Contributor(s):: Moesta, A., Knierim, U., Briese, A., Hartung, J.

    Although several studies show that fresh wood shavings (FW) are not well-suited as dustbathing substrate for laying hens, little is known about the suitability of wood shavings used as litter in non-cage systems for several weeks (used wood shavings, UW) and the effect of different substrate...

  9. The effect of the functional attributes of objects within the caged environment on interaction time in laboratory rats

    Contributor(s):: Williams, C. M., Hanmer, L. A., Riddell, P. M.

    Determining rat preferences for, and behaviour towards, environmental enrichment objects allows us to provide evidence-based information about how the caged environment may be enriched. In recent years there have been many studies investigating the preferences of laboratory rodents for a wide...

  10. The influence of environmental change on the behaviour of sheltered dogs

    Contributor(s):: Wells, D. L., Hepper, P. G.

    The majority of sheltered dogs are overlooked for purchase because they are considered undesirable by potential buyers. Many factors may determine a dog's appeal, although of interest here are the dog's behaviour and cage environment which can influence its desirability. People prefer dogs which...

  11. The influence of sequential feeding on behaviour, feed intake and feather condition in laying hens

    Contributor(s):: Jordan, D., Faruk, M. U., Lescoat, P., Ali, M. N., Stuhec, I., Bessei, W., Leterrier, C.

    Feeding of whole-wheat grains and a protein-mineral concentrate in sequence had been shown to modify behaviour in broilers and performance in laying hens. The objective of this study was to test whether sequential feeding with wheat would induce changes in laying hen's behaviour, feed intake,...

  12. Are the effects of enrichment due to the presence of multiple items or a particular item in the cages of laboratory rat?

    Contributor(s):: Abou-Ismail, U. A.

    Although the effects of environmental enrichment on laboratory rodents have been extensively described, it is not yet known whether these effects were simply due to the presence of multiple items in the cage or due solely to the presence of a particular item. This experiment was therefore carried...

  13. Assessment of preference for grid-flooring and sawdust-flooring by captive-bred marmosets in free-standing cages

    Contributor(s):: Hardy, A., Windle, C. P., Baker, H. F., Ridley, R. M.

    Marmosets (Callithrix jacchus) in a captive breeding colony living in metal caging, with wooden shelves and perches, were assessed by video recording for the time spent on the floor of the cage when that floor was a wire grid above a sawdust-filled tray and when it had been changed to a...

  14. Behaviour and use of space in fattening rabbits as influenced by cage size and enrichment

    Contributor(s):: Buijs, S., Keeling, L. J., Tuyttens, F. A. M.

    In the few previous studies on the effects of space allowance on fattening rabbit behaviour, space allowance was confounded with group size. This is the first study of fattening rabbit behaviour in which space allowance was varied whilst group size was stable (8 animals per pen), although this...

  15. Behaviour in female mink housed in enriched standard cages during winter

    Contributor(s):: Axelsson, H. M. K., Alden, E., Lidfors, L.

    This study evaluated whether adding environmental enrichments to a standard housing system during winter could decrease stereotypic behaviours in female mink. The study was conducted on two private farms (F1 and F2) in southern Sweden. In total, 75 farmed mink on each farm were housed in standard...

  16. Behavioural and corticosterone responses to capture and confinement of wild blackbirds ( Turdus merula )

    Contributor(s):: Adams, N. J., Farnworth, M. J., Rickett, J., Parker, K. A., Cockrem, J. F.

    Capture and temporary confinement of wild birds are integral parts of wildlife management practice and research used, for example, during translocation or reintroduction initiatives. We report here on the behavioural and stress hormone (corticosterone) responses of wild blackbirds (Turdus merula)...

  17. Effects of a running wheel-igloo enrichment on aggression, hierarchy linearity, and stereotypy in group-housed male CD-1 (ICR) mice

    Contributor(s):: Howerton, C. L., Garner, J. P., Mench, J. A.

    Environmental enrichment is an important strategy to improve the welfare of laboratory animals. Running wheels might serve as enrichment devices for laboratory mice, since mice use them extensively when they are provided. However, competition among group-housed mice for such highly preferred...

  18. Effects of access to extra cage constructions including a swimming opportunity on the development of stereotypic behaviour in singly housed juvenile farmed mink ( Neovison vison )

    Contributor(s):: Ahola, L., Mononen, J., Mohaibes, M.

    The aim of the study was to find out whether an access to extra cage constructions including either a 180 l pool (SP group) or a pool-sized extra cage (0.61 m2) (EC group) would slow down the development of stereotypic behaviour in singly housed farmed mink (Neovison vison). Mink housed in...

  19. Effects of cage-cleaning frequency on laboratory rat reproduction, cannibalism, and welfare

    Contributor(s):: Burn, C. C., Mason, G. J.

    Regular cage-cleaning is important for health, but for breeding rats it disrupts the nest and removes olfactory signals important for parental care. To investigate how different cage-cleaning frequencies affect breeding rats' health and welfare, we monitored reproductive output, pup mortality,...

  20. Effects of early weaning and housing conditions on the development of stereotypies in farmed mink

    Contributor(s):: Jeppesen, L. L., Heller, K. E., Dalsgaard, T.

    141 female mink pups were weaned at 6, 8 or 10 weeks of age and subjected to two different housing conditions. They were either kept together with a single male sibling in traditional mink cages (30 x 45 x 90 cm) or housed socially with all litter-mates in an alternative system consisting of...