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All Categories (281-300 of 392)

  1. RICHPIG: a semantic model to assess enrichment materials for pigs

    Contributor(s):: Bracke, M. B. M.

    A computer-based model was constructed to assess enrichment materials (EMats) for intensively-farmed weaned, growing and fattening pigs on a scale from 0 to 10. This model, called RICHPIG, was constructed in order to support the further implementation of EC Directive 2001/93/EC, which states that...

  2. Risk factors and remediation of self-injurious and self-abuse behavior in rhesus macaques

    Contributor(s):: Rommeck, I., Anderson, K., Heagerty, A., Cameron, A., McCowan, B.

    Considered signs of decreased welfare - abnormal behaviors such as self-injury and self-abuse among nonhuman primates housed in the laboratory - may put into question the validity and reliability of scientific research using these animals as models. Providing environmental enrichment decreases...

  3. Rope test may indicate efficacy of tail-biting treatments in growing pigs

    Contributor(s):: Bracke, M. B. M.

    Tail biting is a most serious welfare problem in pigs raised for slaughter. In instances of an outbreak of tail biting, scientists have recommended that farmers take measures such as removal of affected animals, provision of enrichment materials and application of repellents to the pigs' tails....

  4. Safewalk: Improving Enrichment and Adoption Rates for Shelter Dogs by Changing Human Behavior

    Contributor(s):: Bright, Terri M., Hadden, Louise

    Shelter dogs are typically cared for by staff and volunteers. At the Boston location of the Massachusetts Society for the Prevention of Cruelty to Animals, prior to 2009, any member of the public who was older than 16 years of age and attended 1 orientation could walk dogs available for adoption....

  5. Sensory stimulation as environmental enrichment for captive animals: a review

    | Contributor(s):: Wells, D. L.

    In the wild, animals are exposed to an ever-changing array of sensory stimuli. The captive environment, by contrast, is generally much more impoverished in terms of the sensory cues it offers the animals housed within. In a bid to remedy this, and promote better welfare, researchers have started...

  6. Shelter choice by Syrian hamsters (Mesocricetus auratus) in the laboratory

    | Contributor(s):: Veillette, M., Reebs, S. G.

    The preference of Syrian hamsters (Mesocricetus auratus) for different in-cage shelters was tested. First, 15 males and 15 females were made to choose between a cage with a shelter and one without. Different shelters were tested consecutively: short (10-cm) or medium (15-cm) pipes made of black...

  7. Short- and long-term effects of eight enrichment materials on the behaviour of finishing pigs fed ad libitum or restrictively

    | Contributor(s):: Zwicker, Bettina, Gygax, Lorenz, Wechsler, Beat, Weber, Roland

    In a semi-natural environment, a lot of the daily activity of pigs is spent in exploratory and foraging behaviour. Providing enrichment material attractive to the pigs both over the short and long term is therefore important in intensive housing systems. This study aimed to investigate the effect...

  8. Social hierarchy affects the adaption of pregnant sows to a call feeding learning paradigm

    | Contributor(s):: Manteuffel, G., Mannewitz, A., Manteuffel, C., Tuchscherer, A., Schrader, L.

    The aim of the study was to test whether adult sows are able to learn an individual acoustic signal for call-feeding in groups supplied with an electronic feeder. Further, we investigated whether and how the social rank of sows affects learning success. Thirty-six sows were examined in 6...

  9. Social housing of non-human primates in a research facility: socialisation across macaque species and sexes

    | Contributor(s):: Rehrig, A., DiVincenti, L., Jr., Schery, L. A.

    Refinement of social housing practices is paramount to improving animal welfare in laboratory environments, especially with regard to non-human primates. Even though social housing of the same species should be considered the optimal paradigm, cynomolgus ( Macaca fascicularis) and rhesus macaques...

  10. Special Issue: Conservation, enrichment and animal behavior.

    | Contributor(s):: Swaisgood, R. R.

    This special issue contains articles on the state of knowledge in the fields of animal behaviour and conservation behaviour, with emphasis on how enrichment can be used to improve welfare and prepare captive animals for release back into the wild, including the major issues, problems and...

  11. Standardising the assessment of environmental enrichment and tail-docking legal requirements for finishing pigs in Europe

    | Contributor(s):: Hothersall, B., Whistance, L., Zedlacher, H., Algers, B., Andersson, E., Bracke, M., Courboulay, V., Ferrari, P., Leeb, C., Mullan, S., Nowicki, J., Meunier-Salaun, M. C., Schwarz, T., Stadig, L., Main, D.

  12. Stereotypic mice are aggressed by their cage-mates, and tend to be poor demonstrators in social learning tasks

    | Contributor(s):: Harper, L., Choleris, E., Ervin, K., Fureix, C., Reynolds, K., Walker, M., Mason, G.

    Stereotypic behaviours (SBs) are linked with behavioural inflexibility and resemble symptoms of autism, suggesting that stereotypic animals could have autistic-like social impairments. SBs are also common in caged mice. We therefore hypothesised relationships between stereotypic and social...

  13. Stereotypies and environmental enrichment in captive southern hairy-nosed wombats, Lasiorhinus latifrons

    | Contributor(s):: Hogan, L. A., Johnston, S. D., Lisle, A., Horsup, A. B., Janssen, T., Phillips, C. J. C.

    A captive colony of 12 (4[male], 8[female]) wombats, Lasiorhinus latifrons, was used to investigate stereotypic behaviour in this species and determine the beneficial effects of enrichment on wombat behaviour and wellbeing. The wombats were housed in four groups of 1[male] and 2[female], each in...

  14. Strain-specific effects of cage enrichment in male laboratory mice ( Mus musculus )

    | Contributor(s):: Nevison, C. M., Hurst, J. L., Barnard, C. J.

    Within-cage behaviour and physiological parameters were compared among male mice from 6 strains in an enriched (nesting material and a perspex tunnel) and non-enriched environment (n = 32 per strain). The outbred strains were more aggressive than the inbred strains and levels of aggression were...

  15. Straw collecting behaviour by pacas ( Agouti paca ) in captivity

    | Contributor(s):: Sabatini, V., Costa, M. J. R. P. da

    Agouti paca is both considered as a species vulnerable to extinction and recognised with the potential for domestication. In spite of this, its behaviour is poorly documented and captive breeding is mainly based on trial and error. The aim of the present research was to analyse whether different...

  16. Strength of preference for nesting material as environmental enrichment for laboratory mice

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

    The presence of nesting material (paper towel or tissue) and the presence of a nest box (perforated metal or clear perspex box) were evaluated in 47 mice. On average, all the mice spent significantly more time in the cage with the nesting material (more than 69% of their total time, less than 25%...

  17. Structural enrichment and enclosure use in an opportunistic carnivore: the red fox ( Vulpes vulpes )

    | Contributor(s):: Kistler, C., Hegglin, D., Wurbel, H., Konig, B.

    An increasing number of zoos keep their animals in natural-looking enclosures, but it is often unclear whether or not the species' behavioural and ecological needs are being adequately met. For species that suffer predation in the wild, structural enrichment in captivity can play a crucial role...

  18. Sward botanical composition and sward quality affect the foraging behaviour of free-range laying hens

    | Contributor(s):: Breitsameter, Laura, Gauly, Matthias, Isselstein, Johannes

    In a two-year experiment, we investigated the influence of sward plant species composition (sward type), stocking duration and state of sward degradation on the foraging behaviour of chickens. Laying hens (ISA Warren) were pastured on 15 sward types including 14 monocultures of grassland plant...

  19. Systematic investigation of the stability of food preferences in captive orangutans: implications for positive reinforcement training

    | Contributor(s):: Clay, A. W., Bloomsmith, M. A., Marr, M. J., Maple, T. L.

    Using preference-assessment tests with humans in conjunction with behavioral modification sessions has been a regular component of almost all operant conditioning programs with mentally challenged humans. This has been very effective in improving the efficiency of behavioral training in these...

  20. Tailored Enrichment Strategies and Stereotypic Behavior in Captive Individually Housed Macaques (Macaca spp.)

    | Contributor(s):: Cannon, Tessa H., Heistermann, Michael, Hankison, Shala J., Hockings, Kimberley J., McLennan, Matthew R.

    The welfare of nonhuman animals in captivity is widely dependent on the natural psychological, physical, and behavioral needs of the animals and how adequately these needs are met. Inability to engage in natural behaviors can lead to chronic stress and expression of stereotypic behavior. The...