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Amino acid and energy interactions in growing pigs 2. Effects of food intake, sex and live weight on responses to lysine concentration in barley-based diets

Published online by Cambridge University Press:  02 September 2010

L. R. Giles ,
E. S. Batterham  and
E. Belinda Dettmann
L. R. Giles
Affiliation:
Department of Agriculture, Agricultural Research Centre, Wollongbar, New South Wales, 2480, Australia
E. S. Batterham
Affiliation:
Department of Agriculture, Agricultural Research Centre, Wollongbar, New South Wales, 2480, Australia
E. Belinda Dettmann
Affiliation:
Department of Agriculture, Agricultural Research Centre, Wollongbar, New South Wales, 2480, Australia
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Abstract

The responses of growing pigs to dietary lysine concentration, as influenced by food intake, sex (entire male and female) and live weight were investigated in an experiment involving 128 pigs. The basal barley-soya-bean diet (14·2 MJ digestible energy (DE) per kg) was offered either ad libitum or according t o a restricted feeding scale to both sexes from 20 to 85 kg live weight. The eight dietary lysine concentrations ranged from 8·0 to 12·2 g/kg during the 20 to 50 kg phase and from 6·4 to 9·8 g/kg during the 50 to 85 kg live-weight phase. Performance was assessed by response-surface analysis based on data from successive 10-kg live-weight intervals. Regression analysis was used to assess the response of carcass lean content after slaughter at 85 kg live weight.

Daily gain of females fed ad libitum was curvilinear up to maxima of 0·72 and 0·69 g lysine per MJ DE during the 20 to 50 and 50 to 85 kg growth phases respectively. Daily gain response was small but linear up to the maximum dietary lysine concentration for all other combinations of sex and food intake.

The response of carcass lean for males given food at a restricted level was linear up to the maximum dietary lysine concentration. For males given food ad libitum, carcass lean response was curvilinear with maximum lean content attained with 0·73 and 0·59 g lysine per MJ DE during the 20 to 50 and 50 to 85 kg live-weight phases respectively. Carcass lean content of females was not affected by lysine concentration within the range used.

Type
Research Article
Information
Animal Production , Volume 42 , Issue 1 , February 1986 , pp. 133 - 144
Copyright
Copyright © British Society of Animal Science 1986

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References

REFERENCES

Agricultural Research Council. 1981. The Nutrient Requirements of Pigs. Commonwealth Agricultural Bureaux, Slough.Google Scholar
Association of Official Analytical Chemists. 1975. Official Methods of Analysis of the Association of Official Analytical Chemists. 12th ed. Association of Official Analytical Chemists, Washington, DC.Google Scholar
Batterham, E. S. 1979. Lupinus albus cv. Ultra and Lupinus angustifolius cv. Unicrop as protein concentrates for growing pigs. Aust. J. agric. Res. 30: 369–375.CrossRefGoogle Scholar
Batterham, E. S., Giles, L. R. and Dettmann, E. Belinda. 1985. Amino acid and energy interactions in growing pigs. 1. Effects of food intake, sex and live weight on the responses of growing pigs to lysine concentration. Anim. Prod. 40: 331–343.Google Scholar
Batterham, E. S. and Murison, R. D. 1981. Utilization of free lysine by growing pigs. Br. J. Nutr. 46: 87–92.CrossRefGoogle ScholarPubMed
Batterham, E. S., Murison, R. D. and Lewis, C. E. 1979. Availability of lysine in protein concentrates as determined by the slope-ratio assay with growing pigs and rats and by chemical techniques. Br. J. Nutr. 41: 383–391.CrossRefGoogle ScholarPubMed
Blair, R., Dent, J. B., English, P. R. and Raeburn, J. R. 1969. Protein, lysine and feed intake level effects on pig growth. II. Effects on carcass composition and quality. J. agric. ScL, Camb. 73: 395–415.Google Scholar
Cooke, R., Lodge, G. A. and Lewis, D. 1972. Influence of energy and protein concentration in the diet on the performance of growing pigs. 1. Response t o protein intake on a high-energy diet. Anim. Prod. 14: 35–46.Google Scholar
Evans, D. G. and Kempster, A. J. 1979. A comparison of different predictors of the lean content of pig carcasses. 2. Predictors for use in population studies and experiments. Anim. Prod. 28: 97–108.Google Scholar
Kempster, A. J. and Evans, D. G. 1979. A comparison of different predictors of the lean content of pig carcasses. 1. Predictors for use in commercial classification and grading. Anim. Prod. 28: 87–96.Google Scholar
Lewis, C. E. and Lowe, R. F. 1977. Automated Amino Acid Analysis of Feedstuff Protein using the Technicon NC–2P Chromatography System. New South Wales Department of Agriculture, Wollongbar.Google Scholar
Lucas, I. A. M. and Miles, K. L. 1970. Comparison of protein concentrations in diets given unchanged to pigs from 18 to 93 kg live weight. Anim. Prod. 12: 403–412.Google Scholar
Matheson, N. A. 1974. The determination of tryptophan in purified proteins and in feedingstuffs. Br. J. Nutr. 31: 393–400.Google Scholar
National Research Council. 1979. Nutrient Requirements of Domestic Animals. No. 2. Nutrient Requirements of Swine. 8th ed. National Academy of Sciences, Washington, DC.Google Scholar
Taverner, M. R., Curic, D. M. and Rayner, C. J. 1982. Nutritive value of barley for pigs. Proc. Aust. Soc. Anim. Prod. 14: 668.Google Scholar
Taverner, M. R., Hume, I. D. and Farrell, D. J. 1981. Availability to pigs of amino acids in cereal grains. 2. Apparent and true ileal availability. Br. J. Nutr. 46: 159–171.Google Scholar
Wu, J. F. and Ewan, R. C. 1979. Utilization of energy of wheat and barley by young swine. J. Anim. Sci. 49: 1470–1477.CrossRefGoogle Scholar
Yen, H. T. 1979. The lysine requirement of the growing pig. Ph.D. Thesis, Univ. Nottingham.Google Scholar