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The effect of body condition on the feeding behaviour of sheep with different times or access to food

Published online by Cambridge University Press:  02 September 2010

A. M. Sibbald
A. M. Sibbald
Affiliation:
Macaulay Land Use Research Institute, Craigiebuckler, Aberdeen AB15 8QH
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Abstract

Intakes and feeding patterns were studied in two groups of 24 Scottish Blackface ewes, with initial mean body condition scores of 2·15 (thin) and 3·15 (fat). Three treatments, allowing access to a dried-grass pellet diet ad libitum for 6, 12 or 24 h/day, were applied in a Latin-square design, with each sheep receiving each treatment for one 12-day period. Food intakes were measured daily and feeding activity was recorded automatically every minute for one 24-h period during the last 5 days of each 12-day treatment period.

Mean intakes were higher for thin than for fat ewes (1720 v. 1467 g dry matter (DM) per day; P < 0·001). There were no interactions between the effects of body condition and food access time and mean intakes over the last 7 days for the 6-, 12- and 24-h food access treatments were 1429, 1686 and 1805 g DM per day respectively (T < 0·001). Time spent feeding was higher for thin than for fat ewes, over the whole day (231 v. 197 mini day; P < 0·05) and in the first 6 h after the introduction of fresh food (140 v. 120 min; P < 0·05), but there were no differences between thin and fat ewes in the frequency of meals or in the rate of intake during meals. Intakes for the first 6 h were higher with restricted food access (1402, 1109 and 819 g DM per day for 6-, 12- and 24-h access; P < 0·001) but there were no differences in time spent feeding. The number of meals during the first 6 h was higher (10·4 v. 8·3; P < 0·05) and the rate of intake was higher (11·4 v. 7·8 g/min; P < 0·05) for 6-h compared with 24-h food access.

It was concluded that long-term differences in intake due to body condition and short-term changes due to restricting food access time, involve different behavioural responses and this may reflect differences in the mechanisms involved in the regulation of voluntary intake. Keywords: body condition, feeding behaviour, sheep.

Type
Research Article
Information
Animal Science , Volume 64 , Issue 2 , April 1997 , pp. 239 - 246
Copyright
Copyright © British Society of Animal Science 1997

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References

Agricultural Research Council. 1980. The nutrient requirements of ruminant livestock. Commonwealth Agricultural Bureaux, Slough.Google Scholar
Arnold, G. W. 1981. Grazing behaviour. In Grazing animals (ed. Morley, F. H. W.), pp. 79–104. Elsevier Scientific, Amsterdam.Google Scholar
Bermudez, F. F., Forbes, J. M. and Jones, R. 1989. Feed intakes and meal patterns of sheep during pregnancy and lactation and after weaning. Appetite 13: 211–222.CrossRefGoogle ScholarPubMed
Burrin, D. G., Ferrell, C. L., Britton, R. A. and Bauer, M. 1990. Level of nutrition and visceral organ size and metabolic activity in sheep. British Journal of Nutrition 64: 439–448.CrossRefGoogle ScholarPubMed
Collier, G. H. 1985. Satiety: an ecological perspective. Brain Research Bulletin 14: 693–700.CrossRefGoogle ScholarPubMed
Covasa, M. and Forbes, J. M. 1995. Effects of social interaction on selection of diets by broiler chickens. British Poultry Science 35: 817 (abstr.).Google Scholar
Dulphy, J. P., Remond, B. and Theriez, M. 1980. Ingestive behaviour and related activities in ruminants. In Digestive physiology and metabolism in ruminants (ed. Ruckebusch, Y. and Thivend, P.), pp. 103–122. MTP Press, Lancaster.CrossRefGoogle Scholar
Foot, J. Z. 1972. A note on the effect of body condition on the voluntary intake of dried grass wafers by Scottish Blackface ewes. Animal Production 14:131–134.Google Scholar
Forbes, J. M. 1985. The importance of meals in the regulation of food intake. Proceedings of the Nutrition Society of Australia 10:14–24.Google Scholar
Genstat 5 Committee. 1987. Genstat 5 reference manual. Clarendon Press, Oxford.Google Scholar
Greenwood, G. B. and Demment, M. W. 1988. The effects of fasting of short-term cattle grazing behaviour. Grass and Forage Science 43: 377–386.CrossRefGoogle Scholar
Hidari, H. 1981. The relationships between rumen load and diurnal eating pattern of sheep fed in various time of access to feed. Japanese Journal of Zootechnical Science 52:219–226.Google Scholar
Hodgson, J. 1981. Variations in the surface characteristics of the sward and the short-term rate of herbage intake by calves and lambs. Grass and Forage Science 36: 49–57.CrossRefGoogle Scholar
Metz, J. H. 1975. Time patterns of feeding and rumination in domestic cattle. Med Landbouwh Wageningen 75:1–66.Google Scholar
Penning, P. D. 1986. Some effects of sward conditions on grazing behaviour and intake by sheep. In Grazing research at northern latitudes, proceedings of a NATO advanced workshop (ed. Gudmundsson, O.), pp. 219–226. Plenum Press, Hvanneyri, Iceland.CrossRefGoogle Scholar
Romney, D. L., Sendalo, D. S. C., Owen, E., Mtenga, L. A., Penning, P. D., Mayes, R. W. and Hendy, C. R. C. 1996. Effects of tethering management on feed intake and behaviour of Tanzanian goats. Small Ruminant Research 19: 113–120.CrossRefGoogle Scholar
Rook, A. J. and Penning, P. D. 1991. Synchronisation of eating, ruminating and idling activity by grazing sheep. Applied Animal Behaviour Science 32:157–166.CrossRefGoogle Scholar
Russel, A. J. F., Doney, J. M. and Gunn, R. G. 1969. Subjective assessment of body fat in live sheep. Journal of Agricultural Science, Cambridge 72: 451–454.CrossRefGoogle Scholar
Sibbald, A. M. and Kerr, W. G. 1994. The effect of body condition and previous nutrition on the herbage intakes of ewes grazing autumn pastures at two sward heights. Animal Production 58: 231–235.CrossRefGoogle Scholar
Sibly, R. M., Nott, H. M. R. and Fletcher, D. J. 1990. Splitting behaviour into bouts. Animal Behaviour 39:63–69.CrossRefGoogle Scholar
Suzuki, S., Shinde, Y. and Hidari, H. 1970. Effects of a change in the daily time of access to hay on the rate of eating and feed intake of dairy cows. Japanese journal of Zootechnical Science 41:423–429.Google Scholar
Vanderweele, D. A., Haraczkiewicz, E. and Van Itallie, T. B. 1982. Elevated insulin and satiety in obese and normal-weight rats. Appetite 3: 99–109.CrossRefGoogle ScholarPubMed
Webster, A. J. F., Smith, J. S. and Brockway, J. M. 1972. Effects of isolation, confinement and competition for feed on energy exchanges of growing lambs. Animal Production 15:189–201.Google Scholar