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)....
A colostrum feeder for newborn lambs
Contributor(s):: Fraser, D., Rushen, J.
Newborn lambs were studied in 6 experiments to identify simple cues that elicit teat-seeking behaviour, and to incorporate these cues into a device that would guide lambs to find and suck from a colostrum bottle. Lambs were removed from the ewe before sucking and were observed for 10 min in a...
A comparison of handling methods relevant to the religious slaughter of sheep
Contributor(s):: Bates, L. S. W., Ford, E. A., Brown, S. N., Richards, G. J., Hadley, P. J., Wotton, S. B., Knowles, T. G.
Legislation governing non-stun slaughter of sheep in England requires that they are individually and mechanically restrained for slaughter and not moved for at least 20 s post neck cut, until unconsciousness or insensibility occurs. Complying with the need for individual handling, in what is a...
A comparison of the role of vision and hearing in ewes finding their own lambs
Contributor(s):: Walser, E. E. S.
A comparison of the role of vision and hearing in lambs finding their own dams
Contributor(s):: Shillito, E. E.
A note on behavioural laterality in neonatal lambs
Contributor(s):: Lane, A., Phillips, C.
In some mammals behavioural laterality is influenced by the perinatal environment, through stress effects on brain lateralisation, and by gender through variation in testosterone secretion. Therefore, a study was conducted on 54 neonatal lambs to determine whether laterality existed at birth and...
A note on increased intake in lambs through diversity in food flavor
Contributor(s):: Distel, R. A., Rodriguez Iglesias, R. M., Arroquy, J., Merino, J.
Because preferences for food flavor decline during and after a meal, intake could be increased by offering the same food in different flavors simultaneously. The objective of this study was to determine the effects of offering the same hay with different flavors on forage intake by lambs....
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 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...
A note on the consistency and specificity of lambs' responses to a stockperson and to their photograph in an arena test
Contributor(s):: Tallet, C., Veissier, I., Boivin, X.
Understanding how farm animals perceive their stockperson is a major challenge, especially for artificially reared animals which are known to show strong attraction to humans. Replacing the stockperson by its photograph in an arena test could be a useful method for standardising human stimuli....
A note on the effect of vasectomised rams and short-term exposures to entire rams prior to the breeding period on the reproductive performance of ewe lambs
Contributor(s):: Kenyon, P. R., Morel, P. C. H., Morris, S. T., West, D. M.
The aim of this study was to determine the effects of either a 17-day exposure to vasectomised rams or a short-term exposure to entire rams on ewe lamb reproductive performance. Seven hundred and twenty-one Romney ewe lambs, 7-9 months of age, were randomly assigned to one of four treatment...
A note on the use of odor manipulation to facilitate the adoption of alien lambs by ewes bearing twins
Contributor(s):: Price, E. O., Dally, M. R., Hernandez, L.
Adoption of alien lambs by ewes bearing single natural offspring has been facilitated by the use of artificial odorants such as neatsfoot oil to establish a common odour for own and alien young and by the use of cloth stockinette jackets to exchange natural odours between lambs. The objective of...
A questionnaire survey of ovine dystocia management in the United Kingdom
Contributor(s):: Scott, P. R.
This study was conducted to collect information on the shepherd's approaches to dystocia management throughout the lambing period and the extent of veterinary involvement in dystocia cases on sheep farms in UK. A questionnaire survey of farm experience, undertaken during lambing time in the year...
A review of the behavioural and physiological adaptations of hill and lowland breeds of sheep that favour lamb survival
Contributor(s):: Dwyer, C. M., Lawrence, A. B.
Extensively managed animals, often living in harsh and unfavourable environments, need specific adaptations that promote survivability. This is particularly important at parturition and during the neonatal period, when ewe and lamb mortality is highest. To understand the survival adaptations of...
A study of following behaviour in young lambs
Contributor(s):: Winfield, C. G., Kilgour, R.
Ability of lambs to learn about novel foods while observing or participating with social models
Contributor(s):: Thorhallsdottir, A. G., Provenza, F. D., Balph, D. F.
The influence of different social models on the intake of novel feeds; rolled barley, the live shrub Amelanchier alnifolia and a maize grain pellet containing lithium chloride by lambs, 6 to 7 weeks old was studied. Lambs that ate novel feeds for 16 min/day for 5 days with their mothers ate about...
Ability of lambs to learn with a delay between food ingestion and consequences given meals containing novel and familiar foods
Contributor(s):: Burritt, E. A., Provenza, F. D.
Whether lambs, about 7 months old could learn to avoid a novel feed given delays of up to 8 h between feed ingestion and gastrointestinal illness (long delay study); and how gastrointestinal illness affected the selection of several feeds differing in familiarity to lambs (mixed-meal study) was...
Acute effects of mulesing and alternative procedures to mulesing on lamb behaviour
Contributor(s):: Edwards, L. E., Arnold, N. A., Butler, K. L., Hemsworth, P. H.
The practice of surgical mulesing is used as a preventative measure against flystrike in sheep. However, this practice raises welfare concerns due to the severity of the wound and the pain inflicted. Alternative procedures to mulesing have been investigated, but few of these studies have...
Amount of experience and prior illness affect the acquisition and persistence of conditioned food aversions in lambs
In experiment 1, lambs were offered small amounts (=14 days' exposure to the feed formed the least persistent aversions. Furthermore, the aversion to oats stopped within 6 days in lambs offered oats for 7 days. It was concluded that lambs are not likely to avoid a feed they were trained to avoid...
Analysis of the impact of different senses in the human animal interaction
Contributor(s):: Korff, J.