Developing and validating measures of temperament in livestock dating a check


Effect of group size and health status on social and feeding behavior of transition dairy cows. Correlation between cognitive bias and other measures of stress in rats . The main aim of the work described in the present thesis was to examine the consistency of individual differences in behavioural and physiological responses to acute stressors in dairy cattle in a longitudinal fashion, i.e. Information about the variation in the reactivity of dairy cattle to a “real-life” challenge was provided by a study of heifers’ responses to first-time machine milking.A pharmacological validation experiment helped to interpret the response patterns that calves exhibited in behavioural tests designed to induce stress.The temperament was measured in lambs of two breeds of sheep in Uruguay.The effects of dam’s age, type of birth, age of the lamb and contemporary group (CG; lambs belonging to the same year, flock, sex and rearing group) on the temperament of the lambs and the heritability of temperament were estimated with a Bayesian analysis using Gibbs sampling.

CAB Abstracts and Pub Med were searched in July 2013 using terms relevant to dogs, wellbeing and Qo L. When instruments were not published in full, authors were contacted to obtain them. 50th Congress of the International Society for Applied Ethology. You Tube to the rescue: factors influencing feather damaging behaviours in parrots. Only 11/52 instruments demonstrated evidence of assessing reliability or validity, and the quality of these instruments was variable.Many novel, unvalidated instruments have been generated and applied as clinical outcomes before it was known whether they measured Qo L.This seems to contrast with prevailing concepts of individual differences which emphasized the existence of major unifying dimensions such as, for example, fearfulness (Boissy, 1995, Jones, 1996), temperament (Clarke and Boinski, 1995), behavioural syndrome (Sih et al., 2004a, b) or coping style (Koolhaas et al., 1999, see Korte et al., 2005 for a related characteristic defining the unidimensional distinction between “hawk” and “dove” type personalities in animals and men).

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