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Influence of social behaviour on utilization of supplemental feedblocks by Scottish hill sheep

  • A. B. Lawrence (a1) and D. G. M. Wood-Gush (a1)


Observations were made of the behaviour of a home-range group of Scottish Blackface ewes. The group, including replacement ewe lambs, remained on the hill throughout winter and was offered supplemental feedblocks from December to April. Sheep were individually identified and data collected on ranging behaviour between 06.00 and 18.00 h GMT in autumn and winter. Additionally in winter, records were made of time spent eating from the feedblock or standing within 3 m of it.

Age was found to have a strong effect on time spent eating from the feedblock, with older ewes (4 years and over) eating more than younger animals. This was partly attributable to the ewe lambs forming peer groups in winter that were uninfluenced by the movements of mature ewes to the feedblock. Consequently, the majority (0·82) of ewe lambs did not eat feedblock in their first winter. Two- and 3-year-old ewes, although not eating significantly more often from the feedblock than ewe lambs, spent significantly more time standing within 3 m of it and were prevented from eating from it by the competitive behaviour of older ewes. The increased gregariousness of hill sheep in winter appears to be an important factor in preventing the younger ewes taking advantage of the continuous availability of feedblocks. The feedblocks were also found to reduce significantly the size of ewes' home ranges.

The results indicate that the social behaviour of hill sheep limits the use of feedblocks to the older and stronger animals in the group. In addition, feedblocks may reduce the utilization by sheep of available winter forage. Alternative strategies for more effective deployment of feedblocks are discussed.



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Altmann, J. 1974. Observational study of behaviour: sampling methods. Behaviour 49: 227263.
Appleby, M. C. 1980. Social rank and food access in red deer stags. Behaviour 74: 294309.
Arnold, G. W. and Maller, R. A. 1974. Some aspects of competition between sheep for supplementary feed. Animal Production 19: 309319.
Chapple, R. S. and Lynch, J. J. 1986. Behavioural factors modifying acceptance of supplementary foods by sheep. Research and Development in Agriculture 3: 113120.
Ducker, M. J., Kendall, P. T., Hemingway, R. G. and McClelland, T. H. 1981. An evaluation of feedblocks as a means of providing supplementary nutrients to ewes grazing upland/hill pastures. Animal Production 33: 5157.
Geist, V. 1971. Mountain Sheep. University of Chicago Press, Chicago.
Grubb, P. and Jewell, P. A. 1966. Social grouping and home range in feral Soay sheep. Symposium of the Zoological Society, London 18: 179210.
Hewson, R. and Wilson, C. J. 1979. Home range and movement of Scottish Blackface Sheep in Lochaber, north-west Scotland. Journal of Applied Ecology 16: 743751.
Hunter, R. F. 1954. Some notes on the behaviour of hill sheep. British Journal of Animal Behaviour 2: 7578.
Hunter, R. F. 1964. Home range behaviour in hill sheep. In Grazing in Terrestrial and Marine Environments (ed. Crisp, D. J.), pp. 155171. Blackwell Scientific Publications, Oxford.
Hunter, R. F. and Milner, C. 1963. The behaviour of individual, related and groups of South Country Cheviot hill sheep. Animal Behaviour 11: 507513.
Jennrich, R. I. and Turner, F. B. 1969. Measurement of non-circular home range. Journal of Theoretical Biology 22: 227237.
Kendall, P. T. 1977. Studies in the use of feedblocks for ruminants. Ph.D. Thesis, University of Glasgow.
Lawrence, A. B. 1984. The social organization of Scottish Blackface sheep. Ph.D. Thesis, University of Edinburgh.
Lawrence, A. B. and Wood-Gush, D. G. M. 1987. Home range behaviour and social organization of Scottish Blackface sheep. Journal of Applied Ecology. In press.
Lippert, M., Milne, J. A. and Russel, A. J. F. 1982. The feeding of supplements to hill ewes in mid-pregnancy. Animal Production 34: 383 (Abstr.).
Lippert, M., Milne, J. A. and Russel, A. J. F. 1983. Effect of mid-pregnancy supplementation on hill-ewe performance. Animal Production 36: 543 (Abstr.).
Lobato, J. F. P. and Beilharz, R. G. 1979. Relation of social dominance and body size to intake of supplements in grazing sheep. Applied Animal Ethology 5: 233239.
Lobato, J. F. P., Pearce, G. R. and Beilharz, R. G. 1980. Effect of early familiarization with dietary supplements on the subsequent ingestion of molassesurea blocks by sheep. Applied Animal Ethology 6: 149161.
Lynch, J. J., Keogh, R. G., Elwin, R. L., Green, G. C. and Mottershead, B. E. 1983. Effects of early experience on the post-weaning acceptance of whole grain wheat by fine-wool Merino lambs. Animal Production 36: 175183.
Martin, D. J. 1964. Analysis of sheep diet utilizing plant epidermal fragments in faeces samples. In Grazing in Terrestrial and Marine Environments (ed. Crisp, D. J.), pp. 173189. Blackwell Scientific Publications, Oxford.
Martin, S. C. and Ward, D. E. 1973. Salt and meal-salt help distribute cattle use on semidesert range. Journal of Range Management 26: 9497.
O'brien, P. H. 1984. Feral goat home range: influence of social class and environmental variables. Applied Animal Behaviour Science. 12: 373385.
Southwood, T. R. E. 1966. Ecological Methods. Methuen, London.
Wilson, E. O. 1975. Sociobiology. The New Synthesis. Harvard University Press, Cambridge, Massachusetts.
Wishart, D. 1978. CLUSTAN: User Manual. 3rd ed. Program Library Unit, Edinburgh University.
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Animal Science
  • ISSN: 1357-7298
  • EISSN: 1748-748X
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