Assessment of unconsciousness during slaughter without stunning in lambs
Contributor(s):: Rodriguez, P., Velarde, A., Dalmau, A., Llonch, P.
Social transmission of physiological and behavioural responses to castration in suckling Merino lambs
Contributor(s):: Colditz, I. G., Paull, D. R., Lee, C.
A note on sheltering behaviour by ewes before and after lambing
Contributor(s):: Pollard, J. C., Shaw, K. J., Littlejohn, R. P.
The effects of lambing and lamb rearing on sheltering behaviour was investigated in multiparous Romney x Perendale crossbred ewes with either 9 (5 ewes) or 3 months (5) of wool growth during daylight hours for 6 weeks over the lambing period, in a pasture with little vegetative shelter but with a...
Use of shelter and selection of lambing sites by shorn and unshorn ewes in paddocks with closely or widely spaced shelters
Contributor(s):: Alexander, G., Lynch, J. J., Mottershead, B. E.
In late winter sheep spent more time sheltering behind phalaris hedges set 20 m apart than behind those set 240 m apart, but spent more time behind the latter than behind plastic mesh screens set at the same distance. About half the ewes isolated themselves for lambing, which took place near...
Repeated transport and isolation during pregnancy in ewes: differential effects on emotional reactivity and weight of their offspring
Contributor(s):: Roussel-Huchette, S., Hemsworth, P. H., Boissy, A., Duvaux-Ponter, C.
The aim of this experiment was to study the effects of different stressors applied to pregnant ewes during the last third of pregnancy on the emotional reactivity of their lambs. Forty ewes were subjected twice a week during the last 6 weeks of gestation to 10 sessions of isolation (ISOL, n=20)...
Neonatal survival: contributions from behavioural studies in sheep
Contributor(s):: Nowak, R.
Newborn lambs need milk and immunological protection shortly after birth, and early interactions between the mother and the young are critical for this. Merino ewes in extensive conditions in Australia have the reputation of being a poor mothers. Attempts to improve the reproductive performance...
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...
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)....
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...