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  1. Changes in heart rate, plasma cortisol and haematocrit of sheep during a shearing procedure

    Contributor(s):: Hargreaves, A. L., Hutson, G. D.

    Nine Merino wethers were individually subjected to a series of 8 handling treatments of increasing complexity, culminating in partial shearing. The treatments were control, separation from other sheep, isolation, human presence, blood sampling, up-ending, exposure to shearing noise, and wool...

  2. Development of a maze test and its application to assess spatial learning and memory in Merino sheep

    Contributor(s):: Lee, C., Colegate, S., Fisher, A. D.

    A maze test was developed to assess spatial memory and learning in Merino sheep. Total time to traverse the maze and times spent in cul de sacs (errors) were used to assess performance. Both total time and errors decreased when the performance of sheep was assessed on three consecutive days,...

  3. A note on separation from one or more lamb(s) in Merino lines divergently selected for ewe multiple rearing ability

    Contributor(s):: Cloete, S. W. P., Scholtz, A. J., Hoope, J. M. T.

    During 1993-95, post parturient behaviour was studied in 370 Merino ewes, 2-6 years of age, from 2 lines divergently selected for multiple rearing ability kept at the Elsenburg Development Institute. Since 1986, high line ram and ewe replacements had been selected from dams that reared >1 lamb...

  4. Exploring the basis of divergent selection for 'temperament' in domestic sheep

    Contributor(s):: Beausoleil, N. J., Blache, D., Stafford, K. J., Mellor, D. J., Noble, A. D. L.

    In previous studies, sheep that are More Active and vocal in an arena test or during social isolation have been considered to be more fearful than Less Active and vocal sheep. Merino sheep at the University of Western Australia have been selectively bred for their behavioural responses to the...

  5. A breeding goal to improve the welfare of sheep

    Contributor(s):: Scobie, D. R., Bray, A. R., O'Connell, D.

    This paper examines the practical and welfare implications of breeding a polled sheep with a short tail, devoid of wool on the head, legs, belly and breech, which has been proposed as a breeding goal (Scobie et al., Proceedings of the New Zealand Society of Animimal Production 57 (1997) 84-87)....

  6. A review of mulesing and other methods to control flystrike (cutaneous myiasis) in sheep

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

    Flystrike (cutaneous myiasis) in sheep has the potential to have a major impact on the welfare of significant numbers of sheep worldwide, but particularly in Australia. The main control method used in Australia, the mulesing operation to remove folds of skin from the hindquarters of the sheep, is...

  7. Genotype rather than non-genetic behavioural transmission determines the temperament of Merino lambs

    Contributor(s):: Bickell, S., Poindron, P., Nowak, R., Chadwick, A., Ferguson, D., Blache, D.

    Merino ewes have been selected, over 18 generations, for calm (C) or nervous (N) temperament using an arena test and an isolation box test. We investigated the relative contributions of genotype versus the post-partum behaviour of the dam on the temperament of the lambs using a cross-fostering...

  8. Selection for easier managed sheep

    Contributor(s):: Conington, J., Collins, J., Dwyer, C.

    Current alterations in the farm environment, such as a reduced number of farm workers, may mean that sheep genotypes that are highly dependent on man for nutritional and reproductive success will experience poorer welfare within that environment. In the past 30 years, average flock size has...

  9. La mémoire longue d'une métissage : la "métisse" ou la race ovine mérinos d'Arles = Story of crossbreeding : the "métisse" or the Merino sheep of Arles

    Contributor(s):: Fabre, Patrick, Lebaudy, Guillaume