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  1. 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...

  2. How animals respond to change

    Contributor(s):: Mills, D., Dube, M. B., Zulch, H.

    Sections on underpinning principles relating to stress in companion animals, the effects of presistent stress, or "Why Stress can be so Stressful", other considerations for assessing welfare, and stress auditing.

  3. Randomized trial examines effects of equine facilitated learning on adolescents' basal cortisol levels

    Contributor(s):: Pendry, P., Smith, A. N., Roeter, S. M.

    Although equine facilitated programs have gained in popularity over the last decade, virtually nothing is known about the causal effects of equine facilitated interventions on human development and well-being. Researchers conducted a randomized trial to determine the effects of an 11-week equine...

  4. Early life stress, the development of aggression and neuroendocrine and neurobiological correlates: What can we learn from animal models?

    Contributor(s):: Veenema, Alexa H.

  5. Evidence that zoo visitors influence HPA activity in spider monkeys ( Ateles geoffroyii rufiventris ). (Special issue: Primates in zoos)

    Contributor(s):: Davis, N., Schaffner, C. M., Smith, T. E.

    There has been conflicting evidence about the impact of visitors on zoo animals. The present study was designed to increase understanding of visitor effect by assessing the relationship between visitor numbers and activity in the hypothalamic-pituitary-adrenal (HPA) axis. An enzyme-immunoassay...

  6. The effect of parity and environmental restriction on behavioural and physiological responses of pre-parturient pigs

    Contributor(s):: Jarvis, S., Vegt, B. J. van der, Lawrence, A. B., McLean, K. A., Deans, L. A., Chirnside, J., Calvert, S. K.

    There is increasing evidence that restriction of pre-parturient behaviour in pigs is stress-inducing, characterised by an elevation in hypothalamic-pituitary-adrenal (HPA) activity in gilts. To determine whether pigs adapt to behavioural restriction, through modification of nest-building...

  7. Effects of weaning age on the behavioural and neuroendocrine development of piglets. (Special Issue: Early Weaning.)

    Contributor(s):: Jarvis, S., Moinard, C., Robson, S. K., Sumner, B. E. H., Douglas, A. J., Seckl, J. R., Russell, J. A., Lawrence, A. B.

    Adverse early life experiences can permanently "programme" increases in stress reactivity in adulthood. We investigated whether weaning, which involves maternal separation, at different ages, altered subsequent behaviour, physiology and neuroendocrine function in young pigs. The litters of twelve...

  8. 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...