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Tags: Abnormal behavior

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  1. Positive reinforcement training as enrichment for singly housed rhesus macaques ( Macaca mulatta )

    Contributor(s):: Baker, K. C., Bloomsmith, M. A., Neu, K., Griffis, C., Maloney, M.

    Positive reinforcement training is one component of behavioural management employed to improve psychological well-being. There has been regulatory promotion to compensate for restricted social housing in part by providing human interaction to singly caged primates, implying an efficacy standard...

  2. Reducing equine stereotypies using an EquiballTM

    Contributor(s):: Henderson, J. V., Waran, N. K.

    The effects of a foraging device known as 'The EquiballTM' on equine stereotypies were investigated in 6 horses. The animals were given their evening feed in an Equiball, and the occurrence of stereotypic behaviour recorded using scan sampling of video observations. Pre-enrichment, horses spent a...

  3. Repetitive backflipping behaviour in captive roof rats ( Rattus rattus ) and the effects of cage enrichment

    Contributor(s):: Callard, M. D., Bursten, S. N., Price, E. O.

    Repetitive 'stereotyped' behaviours are often performed by both wild and domestic rodents in small laboratory cages. In this study, a behaviour resembling a backwards somersault or backflip is described and quantified in captive roof rats (ship or black rats, Rattus rattus). Videotapes of...

  4. Review of wallowing in pigs: implications for animal welfare

    Contributor(s):: Bracke, M., Spoolder, H.

    Most modern production systems, especially in temperate climates, do not offer wallowing facilities to pigs and, to date, this has neither generated much concern in welfare science nor public debate on pig welfare. Nevertheless, wallowing is a natural behaviour of pigs which may be important to...

  5. Skin stimulated induction of mouth movements in cattle

    Contributor(s):: Simonsen, H. B.

    Six animals in a free-ranging herd of 10 Aberdeen Angus cattle showed mouth movements induced by skin stimulation by grooming the sacro-coccygeal region with a horse grooming brush. Three of the animals reacted by mouth movements similar to stereotypic tongue rolling. 22 (37

  6. Stereotypic behaviour and tail biting in farmed mink ( Mustela vison ) in a new housing system

    Contributor(s):: Vinke, C. M., Eenkhoorn, N. C., Netto, W. J., Fermont, P. C. J., Spruijt, B. M.

    Farmed mink are known for showing stereotypies and tail biting, behaviours that are mostly viewed as indicators of reduced welfare. Among the factors that are often described as being relevant for the welfare of mink are food management systems, age at weaning, and type/presence of nest boxes and...

  7. 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...

  8. Stress and animal welfare

    Contributor(s):: Wiepkema, P. R., Koolhaas, J. M.

  9. Tail and ear biting lesions in pigs: an epidemiological study

    Contributor(s):: Smulders, D., Hautekiet, V., Verbeke, G., Geers, R.

    Tail and ear biting lesions have a negative effect both on the animal welfare status of pigs (Sus scrofus) and the economical revenue of the pig farm. Tail biting behaviour is an unpredictable, abnormal behaviour that is thought to have a multifactorial origin. On-farm factors influencing tail...

  10. Tail-biting in mink ( Mustela vison ) is influenced by age at removal from the mother

    Contributor(s):: Mason, G.

    Female mink removed from the dam at 7 weeks of age were more likely to bite their tails than were those removed at 11 weeks. At both 6 and 10 months of age the mink removed earlier were more likely to have bald tails from biting. Where provided with plastic drinker dishes, early weaned animals...

  11. The early ontogeny of bar-gnawing in laboratory gerbils

    | Contributor(s):: Wiedenmayer, C.

  12. The effect of a short-term biomedical research protocol on stereotyped rocking in young chimpanzees

    | Contributor(s):: Pazol, K. A., Bloomsmith, M. A.

  13. The effects of light intensity and light source on injuries due to pecking of male domestic turkeys ( Meleagris gallopavo )

    | Contributor(s):: Moinard, C., Lewis, P. D., Perry, G. C., Sherwin, C. M.

    It has been shown that, in small groups of intact male domestic turkeys, supplementary ultraviolet (UV-A) radiation, visual barriers, and added straw (environmental enrichment) minimize the incidence of injurious pecking under incandescent light at 5 lux. This paper describes two experiments,...

  14. The welfare impact of increased gavaging doses in rats

    | Contributor(s):: Alban, L., Dahl, P. J., Hansen, A. K., Hejgaard, K. C., Jensen, A. L., Kragh, M., Thomsen, P., Steensgaard, P.

    Textbook recommendations for gavaging rats vary between 1-5 ml for an adult rat. Rats weighing either 130 or 250 g were gavaged with varying dosages of barium sulphate (BaSO4). After dosing, radiographs were taken at 0, 15 and 60 min. Animals showing a section of the small intestine totally...

  15. The welfare of farmed mink ( Mustela vison ) in relation to housing and management: a review

    | Contributor(s):: Nimon, A. J., Broom, D. M.

  16. Human and animal inter-relationships. Review Series: 3. Normal behaviour patterns of dogs: part I. 4. Behavioural problems of dogs: part II

    | Contributor(s):: Blackshaw, J. K.

    Most problems arise when the owner fails to realize that the dog must be part of a defined hierarchy. The treatment of aggression, attention seeking, and elimination, feeding and sexual problems is reviewed.

  17. Human and animal inter-relationships. Review Series: 6. Behavioural problems of cats: II

    | Contributor(s):: Blackshaw, J. K.

  18. Human-animal inter-relationships. Review series: 7. A practical approach to the assessment and management of behavioural changes in companion animals

    | Contributor(s):: Blackshaw, J. K., Allan, D. J.

  19. Managing separation anxiety: an evidence-based approach

    | Contributor(s):: Neilson, J. C.

  20. Horses ( Equus caballus )

    | Contributor(s):: Ekesbo, I.

    This chapter covers horse domestication, changes in the animals and their environment, management, behaviour and welfare. Focus is given on innate or learned behaviour and different types of social behaviour. Some of the normal physiological frequency values of interest at clinical examination...