Sheltering behaviour of shorn and unshorn sheep in mixed or separate flocks
1982
Mottershead, B.E. (CSIRO Division of Animal Production, Armidale NSW (Australia). Pastoral Research Lab.) | Alexander, G. | Lynch, J.J.
Lambing ewes or wethers in mixed flocks of unshorn and recently shorn sheeps, in small gently-sloping (1 in 76) paddocks, were examined for evidence of mutual interaction in their sheltering behaviour. Their distribution in paddocks containing a small sheltered area of grass hedges, sited centrally or at the higher or lower boundaries, was compared with that in paddocks without shelters. During calm weather, in daylight, the sheep largely behaved as one flock, but in windy weather, and at night, most shorn sheep congregated in shelter, while unshorn sheep remained away from shelter. There was no evidence that the inclusion of shorn sheep in a flock of unshorn sheep increased the use of shelter by the unshorn sheep; evidence that the presence of unshorn sheep reduced the sheltering behaviour by shorn sheep was equivocal. Both shorn and unshorn ewes and wethers tended to congregate at the higher end of the paddocks, and the use of shelter by shorn sheep declined as the distance of the shelter from the higher end of the paddock increased, despite the absence of alternative shelter. Clearly, the selection of sites on which to establish shelter will have marked effects on the use that sheep make of shelter.
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