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  1. Disparities in activity levels and learning ability between Djungarian hamster (Phodopus sungorus) and Roborovskii hamster (Phodopus roborovskii)

    Contributor(s):: Ikeda, H., Nagasawa, M.

    The Djungarian hamster and the Roborovskii hamster belong to the same genus of Phodopus. However, the Djungarian hamster is tame and shows sedative behavior, while Roborovskii hamster is not tame and shows high levels of locomotor activity. Hyperactivity occurs in animals with tameless behavior....

  2. Effect of gender and halothane genotype on cognitive bias and its relationship with fear in pigs

    Contributor(s):: Carreras, R., Arroyo, L., Mainau, E., Pena, R., Bassols, A., Dalmau, A., Faucitano, L., Manteca, X., Velarde, A.

    Cognitive bias (CB) has been recently proposed as a tool to study emotions by assessing the cognitive function through behaviour observation. It is based on the premise that subjects in a negative affective state perform more negative judgements about ambiguous stimuli than subjects in positive...

  3. Animal-assisted therapy - magic or medicine?

    Contributor(s):: Odendaal, J. S.

  4. Cognitive differences in horses performing locomotor versus oral stereotypic behaviour

    Contributor(s):: Kirsty, R., Andrew, H., Meriel, M. C., Catherine, H.

    Preliminary investigations reveal altered learning patterns in horses performing oral stereotypic behaviour which coincide with differential functioning of the basal ganglia group of brain structures. However, no studies to date have investigated similar differences in the equine locomotor...

  5. Physiological effects of human-animal positive interaction in dogs - review of the literature

    Contributor(s):: Pop, D., Rusu, A. S., Pop-Vancia, V., Papuc, I., Constantinescu, R., Miresan, V.

    Positive human-animal interactions (HAI) are known to increase the quality of life in both humans and dogs. Although there are several reviews on the benefits of HAI in humans, there are no reviews on the effects of positive HAI in dogs. Therefore, the aim of this paper is to provide a review of...

  6. Function of tongue-playing of cattle in association with other behavioral and physiological characteristics

    Contributor(s):: Ishiwata, T., Uetake, K., Eguchi, Y., Tanaka, T.

    To study the function of tongue-playing of cattle, this study observed 71 Japanese Black x Holstein steers after feeding in 2 repetitive experiments. The number of steers who performed tongue-playing did not differ among the 3 levels of environmentally enriched pens. Most (90.6%) performances of...

  7. Neurophysiological correlates of affiliative behaviour between humans and dogs

    Contributor(s):: Odendaal, J. S. J., Meintjes, R. A.

    Few physiological parameters for positive human-companion animal contact have been identified and those that are established have all been in humans. The implication is that if the physiological reactions are mutual, dogs would experience the same psychological benefits from these...

  8. Anxiety related behavioural disorders and neurotransmitters in dogs

    Contributor(s):: Riva, J., Bondiolotti, G., Michelazzi, M., Verga, M., Carenzi, C.

    The aim of this research has been to verify possible correlations among some neurotransmitters and anxiety related behavioural disorders in the domestic dog. Twenty dogs affected by anxiety related behavioural disorders and 13 control dogs were studied. The dogs' behaviour has been analysed...

  9. Effects of haloperidol, a dopamine D2 receptor antagonist, on feather pecking behaviour in laying hens

    Contributor(s):: Kjaer, J. B., Hjarvard, B. M., Jensen, K. H., Hansen-Moller, J., Larsen, O. N.

    Two experiments investigating general behavioural activity and specific pecking behaviour in laying hens under the effect of a dopamine D2 receptor antagonist, haloperidol, were performed. In experiment 1, a total of 240 White Leghorn hens aged 70 weeks were housed in 30 floor pens. Fifty-five of...

  10. The involvement of dopamine (DA) and serotonin (5-HT) in stress-induced stereotypies in bank voles ( Clethrionomys glareolus )

    Contributor(s):: Schoenecker, B., Heller, K. E.

    In order to clarify the dependency of stress-induced stereotypies on dopamine (DA) and serotonin (5-HT) functioning, undisturbed and acutely stressed stereotyping bank voles were treated during 3 weeks with the commonly used human atypical neurolepticum clozapine and the SSRI antidepressant...

  11. Studies on oral stereotypies in restricted-fed broiler breeders

    Contributor(s):: Savory, C. J.

  12. Behaviour of restricted-fed broiler breeders in relation to pharmacological manipulation of dopamine and opioid receptor subtypes

    Contributor(s):: Kostal, L., Savory, C. J.

  13. Stereotypies, adrenal function and neurophysiological aspects of gestating sows

    Contributor(s):: Borell, E. von, Hurnik, J. F.

  14. Behavioural and hormonal indicators of enduring environmental stress in dogs

    Contributor(s):: Beerda, B., Schilder, M. B. H., Hooff, J. A. R. A. M. van, Vries, H. W. de, Mol, J. A.

    Selected behavioural and hormonal parameters were compared in a group of privately owned dogs with relatively low chronic stress (group 1) with 3 groups of dogs (groups 2, 3 and 4) that were kept under conditions of low to relatively high austerity, and had basal urinary ratios of cortisol to...

  15. Brain measures which tell us about animal welfare

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

    Studies of the brain inform us about the cognitive abilities of animals and hence, affect the extent to which animals of that species are respected. However, they can also tell us how an individual is likely to be perceiving, attending to, evaluating, coping with, enjoying, or disturbed by its...