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Effect of protein intake on energy and nitrogen balance and chemical composition of gain in growing boars of high genetic potential

Published online by Cambridge University Press:  02 September 2010

D. S. Rao  and
K. J. McCracken
D. S. Rao
Affiliation:
Department of Food and Agricultural Chemistry, The Queen's University of Belfast, Newforge Lane, Belfast BT9 5PX
K. J. McCracken
Affiliation:
Department of Food and Agricultural Chemistry, The Queen's University of Belfast, Newforge Lane, Belfast BT9 5PX Food and Agricultural Chemistry Research Division, Department of Agriculture for Northern Ireland, Newforge Lane, Belfast BT9 5PX
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Abstract

The effects of dietary protein (151 to 282 g crude protein per kg dry matter (DM)) and lysine (8·5 to 16·4 g/kg DM) on the carcass composition and energy metabolism of entire male pigs, given food close to appetite, was studied from 33 to 88 kg. Four replicates (three Landrace and one Duroc) of four littermates were used. Energy and nitrogen (N) balances were conducted at approximately 35 to 43, 58 to 65 and 78 to 85 kg and body composition was determined at slaughter. There was no effect of dietary treatment on the crude protein content of the empty body (EBW) but the DM (P < 0·001), fat (P < 0·001) and ash (P < 0·05) proportions and fat: protein ratio in EBW (P < 0·01) increased with decreasing dietary protein level. The mean maximum protein retention was 183 g/day. Retention of protein (P < 0·05) and proportion of protein energy in the gain (P < 0·01) decreased linearly and fat retention (P < 0·001) and energy content of the gain (P < 001) increased with decreasing dietary protein. The N retention values calculated from balance data were proportionately 0·21 higher at high protein intakes (509 g/day) and 0·056 higher at low protein intakes (329 g/day) than the values obtained by slaughter. Using the ideal protein system the value for the efficiency of utilization of apparently digested ideal protein for protein deposition (a2) fell linearly (P < 0·001), based on the slaughter data, as dietary protein content increased. Heat production, calculated from slaughter data, was proportionately 0·07 higher than that measured by indirect calorimetry and 0·17 higher than the computed value for heat production using the standard values of energy costs for maintenance and for protein and fat deposition.

Keywords

boarscarcass compositionenergy intakegrowthprotein intake
Type
Research Article
Information
Animal Production , Volume 51 , Issue 2 , October 1990 , pp. 389 - 397
Copyright
Copyright © British Society of Animal Science 1990

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References

REFERENCES

Agricultural Research Council. 1981. The Nutrient Requirements of Pigs. Commonwealth Agricultural Bureau, Slough.Google Scholar
Cambell, R. G. and Taverner, M. R. 1988. Genotype and sex effects on the relationship between energy intake and protein deposition in growing pigs. Journal of Animal Science 66: 676–686.CrossRefGoogle Scholar
Ellis, M., Smith, W. C., Henderson, R., Whittemore, C. T. and Laird, R. 1983. Comparative performance and body composition of control and selection line Large White pigs. 2. Feeding to appetite for a fixed time. Animal Production 36: 407–413.Google Scholar
Etherton, T. D., Wiggins, J. P., Evock, C. M., Chung, C. S., Rebhun, J. F., Walton, P. E. and Steele, N. C. 1987. Stimulation of pig growth performance by porcine growth hormone: determination of the dose-response relationship. Journal of Animal Science 64: 433–443.CrossRefGoogle ScholarPubMed
Gray, R. and McCracken, K. J. 1976. A system of centralised gas analysis and data capture to service several open and closed circuit respiration chambers. European Association for animal Production, Publication No. 19, pp. 335–338.Google Scholar
Henderson, R., Whittemore, C. T., Ellis, M., Smith, W. C., Laird, R. and Phillips, P. 1983. Comparative performance and body composition of control and selection line Large White pigs. 1. On a generous fixed feeding scale for a fixed time. Animal Production 36: 399–405.Google Scholar
Just, A., Fernandez, J. A. and Jorgensen, H. 1982. Nitrogen balance studies and nitrogen retention. In Digestive Physiology in the Pig (ed. Laplace, J. P., Corring, T. and Renat, A.). Les Coloques de l'INRA, Vol. 12, p. 111–122.Google Scholar
Just, A., Jorgensen, H., Fernandez, J. A. and Agergaard, N. O. 1985. Investigations about the requirements of essential nutrients for growth in ad libitum fed pigs of Danish Landrace and Large white. Beretning fra Statens Husdrybrugsforsog, No. 579.Google Scholar
Kotarbinska, M. 1969. Badania nad pozemiana energii u rosnacych swin. Instytut Zootechniki, Wydawnictwa Wlasne, Nr 238: Wroelaw, p. 68.Google Scholar
McCracken, K. J., Eddie, S. M. and Stevenson, W. G. 1980. Energy and protein nutrition of early weaned pigs. 2. Effect of energy intake and energy: protein on energy utilisation and body composition of pigs slaughtered at 32 d. British Journal of nutrition 43: 305–319.CrossRefGoogle ScholarPubMed
McCracken, K. J. and McAllister, A. 1984. Energy metabolism and body composition of young pigs given low-protein diets. British Journal of Nutrition 51: 225–234.CrossRefGoogle ScholarPubMed
McCracken, K. J. and Rao, D. S. 1989. Protein: energy interactions in boars of high lean deposition potential. European Association for Animal Production, Publication No. 43, pp. 13–16.Google Scholar
Nienaber, J. A., Chen, Y. R. and Hahn, G. L. 1985. Energetics of activity using indirect calorimetry. European Association for Animal Production, Publication No. 32, pp. 164–167.Google Scholar
Noblet, J., Henry, Y. and Dubois, S. 1987. Effect of protein and lysine levels in the diet on body gain composition and energy utilisation in growing pigs. Journal of Animal Science 65: 717–726.CrossRefGoogle ScholarPubMed
Pond, W. G., Varel, V. H., Dickson, J. S. and Haschek, W. M. 1989. Comparative response of swine and rats to high-fiber, high-protein diets. Journal of Animal Science 67: 716–723.CrossRefGoogle ScholarPubMed
Rao, D. S. and McCracken, K. J. 1990. Protein requirements of boars of high genetic potential for lean growth. Animal Production 51: 179–187.Google Scholar
Stranks, M. H., Cooke, B. C., Fairbairn, C. B., Fowler, N. G., Kirby, P. S., McCracken, K. J., Morgan, C. A., Palmer, F. G. and Peers, D. G. 1988. Nutrient allowances for growing pigs. Research and Development in Agriculture 5: 71–78.Google Scholar
Sugahara, M., Baker, D. H., Harmon, B. G. and Jensen, A. H. 1969. Effect of excess levels of dietary crude protein on carcass development in swine. Journal of Animal Science 29: 598–601.Google Scholar
Whittemore, C. T. 1983. Development of recommended energy and protein allowances for growing pigs. Agricultural Systems 11: 159–186.Google Scholar