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The nutrition of the early weaned lamb:II. The effect of dietary protein concentration, feeding level and sex on body composition at two live weights

  • R. P. Andrews (a1) and E. R. Ørskov (a1)
Summary

1. In an experiment with ninety-nine lambs the effects on the body composition of male and female lambs were examined when five diets containing different concentrations of crude protein (in the range 10–20%) were given at three levels of feeding and lambs were slaughtered at two live weights (27·5 and 40 kg).

2. With lambs slaughtered at 27·5 kg there were significant increases in the rate of both nitrogen and fat retention with increases in levels of feeding. There were also linear increases in the rate of protein deposition and decreases in fat deposition with increases in the concentration of crude protein. This effect was particularly marked at the high level of feeding.

3. With lambs slaughtered at 40 kg live weight there were also linear increases in fat and in nitrogen deposition with increasing feeding level but the effect of increasing the protein concentration on increases in nitrogen retention departed from linearity.

4. While at 27·5 kg there were no significant effects of feeding level on nitrogen and ether-extract content of the bodies at slaughter, with animals slaughtered at 40 kg there was a significant linear decrease in ether-extract content with increasing feeding level and a corresponding linear increase in nitrogen content with increased level of feeding.

5. Male lambs deposited more nitrogen and less fat than females. This was true of both rate of deposition and of carcass composition at 40 kg live weight.

Copyright
COPYRIGHT: © Cambridge University Press 1970
References
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Agricultural Research Council (1967). The Nutrient Requirements of Farm Livestock, No. 3. Pigs. London: Agricultural Research Council.
Andrews, R. P. & Ørskov, E. R. (1970). The nutrition of the early weaned lamb. I. The influence of protein concentration and feeding level on rate of gain in body weight. J. agric. Sci., Camb. (in the Press).
Boccard, R. and Juplan, J. M. (1961). Etude de la production de la viande chez les ovins. 3. Note sur l'influence de la vitesse de croissance sur la composition corporelle des agneaux. Annls Zootech. 10, 31–8.
Burton, J. H. & Reid, J. T. (1969). Interrelationships among energy input, body size, age and body composition of sheep. J. Nutr. 97, 517–24.
Bush, L. F., Willman, J. P. & Morrison, F. B. (1955). A study of the protein requirements of fattening feeder lambs. J. Anim. Sci. 14, 465–69.
Elsley, F. W. H., McDonald, I. & Fowler, V. R. (1964). The effect of plane of nutrition on the carcasses of pigs and lambs when variations in the fat content are excluded. Anim. Prod. 6, 141–54.
Evereitt, G. C. & Jury, K. E. (1966). Effects of sex and gonadectomy on the growth and development of Southdown × Romney cross lambs. 2. Effects on carcass grades, measurements and chemical composition. J. agric. Sci., Camb. 66, 15–27.
Garrett, W. N., Meyer, J. H. & Lofgreen, G. P. (1959). The comparative energy requirements of sheep and cattle for maintenance and gain. J. anim. Sci. 18, 528–47.
Hammond, J. (1932). Growth and the Development of Mutton Qualities in the Sheep. Edinburgh: Oliver and Boyd Ltd.
Ørskov, E. R., Fraser, C. & Kay, R. N. B. (1969). Dietary factors influencing the digestion of starch in the rumen and small and large intestine of early weaned lambs. Br. J. Nutr. 23, 217–26.
Paladines, O. L., Reid, J. T., Van Niekerk, B. D. H. & Bensadoun, A. (1964). Energy utilization by sheep as influenced by the physical form, composition and level of intake of diet. J. Nutr. 83, 49–59.
Palsson, H. & Verges, J. B. (1952). Effects of plane of nutrition on growth and development of carcass quality in lambs. 2. Effects on lambs of 30 lb carcass weight. J. agric. Sci., Camb. 42, 93–149.
Preston, R. L. & Burroughs, W. (1958). Stilboestrol responses in lambs fed rations differing in caloric to protein ratios. J. Anim. Sci. 17, 140–51.
Reid, J. T., Bensadoun, A., Bull, L. S., Burton, J. H., Gleeson, P. A., Han, L. K., Joo, Y. D., Johnson, D. E., McManns, W. R., Paladines, O. L., Stroud, J. W., Tyrrell, H. F., Van Niekerk, B. D. H., Wellington, G. H. & Wood, J. D. (1968 a). Unpublished report entitled: Present status of various methods of estimating body composition. Cornell University, Ithaca, New York, U.S.A.
Reid, J. T., Bensadoun, A., Bull, L. S., Burton, J. H., Gleeson, P. A., Han, L. K., Joo, Y. D., Johnson, D. E., McManns, W. R., Paladines, O. L., Stroud, J. W., Tyrrell, H. F., Van Niekerk, B. D. H., Wellington, G. H. & Wood, J. D., (1968 b). Changes in body composition and meat characteristics accompanying growth of animals. Proc. Cornell Nutrition Conference, pp. 18–37.
Walker, D. E. (1950). The influence of sex upon carcass quality of New Zealand fat lamb. N. Z. Jl Sci. Technol. 32 A, 30–8.
Walker, D. M. & Faichney, G. J. (1964). Nitrogen balance studies with the multi-fed lamb. 3. Effect of different nitrogen intakes on growth and nitrogen balance. Br. J. Nutr. 18, 295–306.
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