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Growth patterns in sheep: the effects of weight losses on compensatory growth and feed intake in Corriedale sheep

Published online by Cambridge University Press:  27 March 2009

B. V. Butler-Hogg  and
N. M. Tulloh
B. V. Butler-Hogg
Affiliation:
School of Agriculture and Forestry, University of Melbourne, Parkville, 3052, Australia
N. M. Tulloh
Affiliation:
School of Agriculture and Forestry, University of Melbourne, Parkville, 3052, Australia
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Summary

The growth and feed intakes of Corriedale wether sheep when grown from 30 to 50 kg body weight by five different growth paths are described.

Group A (control) grew continuously (fed ad libitum). After reaching ca; 40 kg body weight, group B and C animals lost 21% of their initial body weight over 9 and 18 weeks and at 122 and 63 g/day, respectively, and began realimentation at 30 kg body weight. Group D and E animals were ca. 50 kg body weight when weight loss was imposed and they lost body weight at similar rates (125 and 157 g/day) respectively. Animals in group D lost 34% of their initial body weight over 18 weeks and began realimentation at 30 kg body weight (the same as groups B and C). Group E animals lost 23% of their initial body weight over 9 weeks to begin realimentation at 35 kg body weight. Except during periods of weight loss, animals were fed ad libitum. Compensatory growth was observed in all groups which had lost weight, with early recovery growth rates 1·6–1·8 times higher than control sheep of the same weight.

Rate of body-weight loss did not induce any significant differences in response to realimentation but results (groups B and C) suggest that the more rapid the loss, the more rapid will recovery be during realimentation. When sheep at different body weights lost the same proportion of their initial body weights, the heavier sheep (group E) attained final slaughter weight quicker than the lighter sheep (group B). When the proportion of body weight lost to reach a particular lower body weight was varied (groups B and D), the greater weight loss was associated with higher and more persistent growth rates during realimentation.

After weight loss, ad libitum dry-matter intake was significantly lower during the first 10 kg of gain during realimentation in all treatment groups (B, C, D, E) than in control group A. There were no differences between treatment groups in recovery of dry-matter intake.

Gross efficiency in all treatment groups was higher than in the control group A during the first 10 kg of recovery of body weight, but it then declined rapidly. This increase in gross efficiency was considered to be due to a combination of increased growth rates, reduced feed intakes and lower maintenance requirements. When the complete growth paths from 30 to 50 kg were considered, there were no significant differences in total feed consumed by the sheep following the five different growth paths.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 99 , Issue 3 , December 1982 , pp. 641 - 649
Copyright
Copyright © Cambridge University Press 1982

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References

Allden, W. G. (1968a). Undernutrition of the Merino sheep and its sequelae. I. 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. (1968b). Undernutrition of the Merino sheep and its sequelae. III. The effect on lifetime productivity of growth restrictions imposed at two stages of early post-natal life in a Mediterranean environment. Australian Journal of Agricultural Research 19, 981–996.Google 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 Scholar
Beames, R. M. & Morris, J. G. (1965). Effect of salt/ urea blocks in body weight, body composition and wool production of sheep fed low protein native grass hay. Queensland Journal of Agricultural Science 22, 369–379.Google Scholar
Bohman, V. R. (1955). Compensatory growth of beef cattle: the effect of hay maturity. Journal of Animal Science 14, 249–255.CrossRefGoogle Scholar
Burton, J. H., Anderson, M. S. & Reid, J. T. (1974). Some biological aspects of partial starvation. The effect of weight loss and regrowth on body composition in sheep. British Journal of Nutrition 32, 515–527.Google Scholar
Drew, K. R. & Reid, J. T. (1975). Compensatory growth in immature sheep. III. Feed utilization by shoop subjected to feed deprivation followed by realimontation. Journal of Agricultural Science, Cambridge 85, 215–220.Google Scholar
Elliott, R. C. & O'donovan, W. M. (1969). Compensatory growth in Dorper sheep. Proceedings 11 Symposium on Animal Production, pp. 41–51. University College of Rhodesia, Salisbury.Google Scholar
Foot, J. Z. & Tulloh, N. M. (1977). Effects of two paths of live weight change on the efficiency of feed use and on body composition of Angus steers. Journal of Agricultural Science, Cambridge 88, 135–142.CrossRefGoogle Scholar
Franklin, H. C. (1952). Maintenance rations for Merino sheep. I. A comparative study of daily and weekly feeding on rations containing high proportions of wheat and several proportions of roughage to concentrate. Australian Journal of Agricultural Research 3, 168–186.CrossRefGoogle Scholar
Garrett, W. N., Meyer, J. A. & Lofgreen, G. P. (1959). The comparative energy requirements of sheep and cattle for maintenance and gain. Journal of Animal Science 18, 528–547.Google Scholar
Graeme, N. McC. & Searle, T. W. (1975). Studies of weaner sheep during and after a period of weight stasis. I. Energy and nitrogen utilisation. Australian Journal of Agricultural Research 26, 343–354.Google Scholar
Gunn, R. G. (1964). Levels of first winter feeding in relation to performance of Cheviot hill ewes. II. Body growth and development during the summer after treatment, 12–18 months. Journal of Agricultural Science, Cambridge 62, 123–149.Google Scholar
Hight, G. K. & Barton, R. A. (1965). The effect of undernutrition and realimentation on the Romney ewe.Journal of Agricultural Science, Cambridge 64, 413–424.CrossRefGoogle Scholar
Hogg, B. W. (1977). The effects of growth patterns on body composition and compensatory growth in sheep. Ph.D. thesis, University of Melbourne.Google Scholar
Joblin, A. D. H. (1968). Winter feeding trials with beef cattle. Proceedings of the New Zealand Society of Animal Production 28, 145–156.Google Scholar
Joubert, D. M. (1954). The influence of winter nutritional depression on the growth, reproduction and production of cattle. Journal of Agricultural Science, Cambridge 44, 5–65.Google Scholar
Keenan, D. M., McManus, W. R. & Freer, H. (1969). Changes in the body composition and efficiency of mature sheep during loss and regain of live weight. Journal of Agricultural Science, Cambridge 72, 139–148.Google Scholar
Keenan, D. M., McManus, W. R. & Freer, H. (1970). Voluntary intake of food by mature sheep following restricted feeding. Journal of Agricultural Science, Cambridge 74, 477–485.CrossRefGoogle Scholar
McManus, W. R., Reid, J. T. & Donaldson, L. E. (1972). Studies of compensatory growth in sheep. Journal of Agricultural Science, Cambridge 79, 1–12.CrossRefGoogle Scholar
Meyer, J. H. &Clawson, W. J. (1964). Undernutrition and subsequent realimentation in rats and sheep. Journal of Animal Science 23, 214–224.CrossRefGoogle Scholar
Meyer, J. H., Weir, W. C. & Torell, D. T. (1962). Response of immature sheep to partial starvation. Journal of Animal Science 21, 916–923.Google Scholar
Molnar, I. (1966). A Manual of Australian Agriculture 2nd edn., p. 352.Google Scholar
Moule, G. R. (1965). Field Investigations with Sheep, a Manual of Techniques. Melbourne: C.S.I.R.O.Google Scholar
Murray, D. M. & Slezacek, O. (1976). Growth rate and its effect on empty body weight, carcass weight and dissected carcass composition of sheep. Journal of Agricultural Science, Cambridge 87, 171–179.Google Scholar
O'Donovan, W. M. (1974 a). Developmental changes in the bodies of Dorper sheep. 3. Effects of different patterns of growth on live body - mass and body composition of weaned Dorper lambs. Rhodesian Journal of Agricultural Research 12, 99–111.Google Scholar
O'Donovan, W. M. (1974 b). Developmental changes in the bodies of Dorper sheep. 5. Effects of feeding diets of different metabolizable energy concentration ad lib., either from the start or after a period of growth restriction, on the body composition of weaned Dorper lambs. Rhodesian Journal of Agricultural Research 12, 127–140.Google Scholar
Osborne, T. B. & Mendel, L. B. (1915). The resumption of growth after long continued failure to grow. Journal of Biological Chemistry 23, 439–454.Google Scholar
Seebeck, R. M. (1968). Developmental studies of body composition. Animal Breeding Abstracts 36, 167–181.Google Scholar
Sokal, R. S. & Rohlf, F. J. (1976). Biometry. San Francisco: W. H. Freeman and Co.Google Scholar
Wilson, P. N. & Osbourn, D. F. (1960). Compensatory growth after undernutrition in mammals and birds. Biological Reviews 35, 324–363.Google Scholar
Winter, W. H., Tulloh, N. M. & Murray, D. M. (1976). The effect of compensatory growth in sheep on empty body weight, carcass weight and the weights of some offals. Journal of Agricultural Science, Cambridge 87, 433–441.Google Scholar