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Change of skeletal dimensions during growth in sheep: the effect of nutrition

Published online by Cambridge University Press:  27 March 2009

T. W. Searle ,
N. McC. Graham  and
J. B. Donnelly
T. W. Searle
Affiliation:
CSIRODivision of Animal Production
N. McC. Graham
Affiliation:
CSIRODivision of Animal Production
J. B. Donnelly
Affiliation:
CSIRO, Division of Mathematics and Statistics, P.O. Box 239, Blacktown, N.S.W. 2148, Australia
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Summary

Measurements of skeletal size were made at 2–3-month intervals on 30 Border Leicester × Merino castrate male (wether) sheep between 2 and 27 months of age. Fifteen sheep were fed ad libitum on a high-quality diet and the other 15 half the average amount consumed by the first group, age for age. The ad libitum group grew faster and were larger in all body dimensions on each occasion, except for leg length at 27 months which showed no statistical difference between groups. When the groups were compared over the live-weight range common to both (16–44 kg) the unrationed animals were consistently wider at the shoulders but smaller in leg and chest dimensions.

The relationship between each body component and age is described by a Mitscherlich equation and the relationship with live weight by a linear equation in which both variables are log transformed. Separate relationships were determined for each sheep and tested for differences within and between groups.

Type
Review
Information
The Journal of Agricultural Science , Volume 112 , Issue 3 , June 1989 , pp. 321 - 327
Copyright
Copyright © Cambridge University Press 1989

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References

Allden, W. G. (1968). Undernutrition of the Merino sheep and its sequelae. 1. The growth and development of lambs following prolonged periods of nutritional stress. Australian Journal of Agricultural Research 19, 621–638.CrossRefGoogle Scholar
Allden, W. G. (1970). The effects of nutritional deprivation on the subsequent productivity of sheep and cattle. Nutrition Abstracts and Reviews 40, 1167–1184.Google ScholarPubMed
Brody, S. (1945). Bioenergetics and Growth. New York: Reinhold Publishing Corporation.Google Scholar
Brody, S., Davis, H. P. & Ragsdale, A. C. (1937). Growth and development with special reference to domestic animals XLI. Relation between liveweight and chest girth in dairy cattle of unknown age. University of Missouri Agricultural Experiment Station Bulletin 262.Google Scholar
Cassard, D. W., Gregory, P. W., Wilson, J. F., Rollins, W. C. & Weir, W. C. (1953). Environmental factors affecting body size and conformation in Rambouillet yearling ewes. Journal of Animal Science 12, 140–147.CrossRefGoogle Scholar
Cassard, D. W., Gregory, P. W., Weir, W. C. & Wilson, J. F. (1956). Environmental factors affecting body dimensions in yearling Hampshire ewes. Journal of Animal Science 15, 922–929.CrossRefGoogle Scholar
Davis, H. P., Morgan, R. F., Brody, S. & Ragsdale, A. C. (1937). Relation of height at withers and chest girth to liveweight of dairy cattle of different breeds and ages. University of Nebraska Agricultural Experiment Station Research Bulletin 91.Google Scholar
Dickerson, J. W. T. & Widdowson, E. M. (1960). Some effects of accelerating growth. II. Skeletal development. Proceedings of the Royal Society B 152, 207–217.Google ScholarPubMed
Dunlop, A. A. (1963). Interactions between heredity and environment in the Australian Merino. II. Strain × location interactions in body traits and reproductive performance. Australian Journal of Agricultural Research 14, 690–703.CrossRefGoogle Scholar
Graham, N. McC. & Searle, T. W. (1972). Growth in sheep. II. Efficiency of energy and nitrogen utilization from birth to 2 years. Journal of Agricultural Science, Cambridge 79, 383–389.CrossRefGoogle Scholar
Graham, N. McC., Searle, T. W. & Griffiths, D. A. (1974). Basal metabolic rate in lambs and young sheep. Australian Journal of Agricultural Research 25, 957–971.CrossRefGoogle Scholar
Miller, A. J. (1981). LMM – A subroutine for unconstrained non-linear least-squares fitting. CSIRO Division of Mathematics and Statistics, Consulting Report No. VT 81/23, South Melbourne, Victoria, Australia.Google Scholar
Moulton, C. R., Trowbridge, P. F. & Haigh, L. D. (1921). Studies in animal nutrition 1. Changes in form and weight on different planes of nutrition. University of Missouri Agricultural Experiment Station Research Bulletin 43.Google Scholar
Searle, T. W., Graham, N. McC. & O'Callaghan, M. (1972). Growth in sheep. I. The chemical composition of the body. Journal of Agricultural Science, Cambridge 79, 371–382.CrossRefGoogle Scholar
Spencer, S. A. & Hull, D. (1984). The effect of over-feeding newborn rabbits on somatic and visceral growth, body composition and long-term growth potential. British Journal of Nutrition 51, 389–402.CrossRefGoogle ScholarPubMed
Taylor, St. C. S. (1965). A relation between mature weight and time taken to mature in mammals. Animal Production 7, 203–220.Google Scholar
Turner, H. N., Hayman, R. H., Riches, J. H., Roberts, N. F. & Wilson, L. T. (1953). Physical definition of sheep and their fleece for breeding and husbandry studies CRIRO Australia. Division of Animal Health and Production Divisional Report No. 4 (Series S.W.-2).Google Scholar
Wynn, P. C. & Thwaites, C. J. (1981). The relative growth and development of the carcass tissues of Merino and crossbred rams and wethers. Australian Journal of Agricultural Research 32, 947–956.CrossRefGoogle Scholar