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Protein, lysine and feed intake level effects on pig growth

II. Effects on carcass composition and quality

Published online by Cambridge University Press:  27 March 2009

R. Blair ,
J. B. Dent ,
P. R. English  and
J. R. Raeburn
R. Blair
Affiliation:
School of Agriculture, University of Aberdeen
J. B. Dent
Affiliation:
School of Agriculture, University of Aberdeen
P. R. English
Affiliation:
School of Agriculture, University of Aberdeen
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Summary

A total of 512 pigs were given from 50 lb live weight one of 16 diets (four lysine levels at each of 12, 14, 16 and 18% protein), at one of four levels of intake. They were killed at 100, 150, 200 or 250 lb live weight and the carcasses jointed in a standard manner and right sides dissected into lean meat, fat, skin and bone.

Mean percentage proportion of shoulder, middle and ham joints in the dressed sides at the four weights was 36·3, 36·4 and 27·3; 35·4, 37·9 and 26·7; 34·5, 39·6 and 25·9; and 33·8, 40·7 and 25·5, respectively. Mean percentage lean meat at the four live weights was 61·5, 59·9, 56·7 and 54·2 and the mean percentage fat was 20·7, 24·4, 29·4 and 32·8.

Carcass quality was influenced significantly by dietary treatment and sex. Increasing the level of protein in the diet up to 16, 16, 14–16 and 14%, respectively, for the four live weight groups gave a significant increase in carcass leanness. Increasing the level of lysine in the diet did not have a very marked effect on carcass composition, while increasing feed intake to the highest level produced fatter carcasses at all weights. Carcasses of males were fatter and with a lower proportion of ham than those of females. Interactions involving dietary treatments and sex were described.

Chemical composition of the m. longissimus dorsi was not altered markedly by dietary treatment or sex but dry matter and intramuscular fat content rose with increasing weight. Protein content of the dry matter remained fairly constant at all weights, while colour and shear value rose with increasing weight but were not significantly influenced by dietary treatment or sex.

The pH values of the m. multifidus dorsi just after slaughter or on the day following were not markedly affected by dietary treatment, sex or weight.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 73 , Issue 3 , December 1969 , pp. 395 - 415
Copyright
Copyright © Cambridge University Press 1969

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References

REFERENCES

Agricultural Research Council (1967). The nutrient requirements of farm livestock. No. 3. Pigs:Technical reviews and summaries.Google Scholar
Association Of Official Agricultural Chemists (1965). Official Methods of Analysis. Washington, D.C.: A.O.A.C.Google Scholar
Barber, R. S., Braude, R., Chamberlain, A. G., Hosking, Z. D. & Mitchell, K. G. (1964). Protein quality of feeding stuffs 3. Comparative assessment of the protein quality of three fishmeals given to growing pigs. Br. J. Nutr. 18, 545–54.CrossRefGoogle Scholar
Bellis, D. B. (1961). The requirements of bacon and heavy pigs for certain essential amino acids. Anim. Prod. 3, 331–9.CrossRefGoogle Scholar
Blair, R., Dent, J. B., English, P. R. & Raeburn, J. R. (1969). Protein, lysine and feed intake level effects on pig growth. I. Main effects. J. agric. Sci., Camb. 72, 379–400.CrossRefGoogle Scholar
Blair, R., Raeburn, J. R. & Ward, J. (1966). Factors affecting leanmeat development in pigs. Proc. P.I.D.A. Conf. Scientists and Economists, Brighton, pp. 34–57. London: Pig Industry Development Authority.Google Scholar
Braude, R. (1967 a). The effect of changes in feeding patterns on the performance of pigs. Proc. Nutr. Soc. 26, 163–81.CrossRefGoogle ScholarPubMed
Braude, R. (1967b). Variations in the composition of pig meat. Proc. Conf. on Composition of Animal Products, pp. 21–53. Dublin: An Foras Taluntais.Google Scholar
Brooks, C. C., Fontenot, J. P., Vipperman, P. E. Jr, Thomas, H. R. & Graham, P. P. (1964). Chemical composition of the young pig carcass. J. Anim. Sci. 23, 1022–6.CrossRefGoogle Scholar
Buck, S. F., Harrington, G. & Johnson, R. F. (1962). The prediction of lean percentage of pigs of bacon weight from carcass measurements. Anim. Prod. 4, 25–36.Google Scholar
Callow, E. H. (1947). Comparative studies of meats. I. The chemical composition of fatty and muscular tissue in relation to growth and fattening. J. agric. Sci., Camb. 37, 113–29.CrossRefGoogle Scholar
Clausen, H. (1965). The protein requirements of growing meat type pigs. Wld Rev. Anim. Prod. 1, 28–42.Google Scholar
Costain, R. A. & Morgan, J. T. (1961). The effects of variations in the energy and protein status of the diet upon productive efficiency in the pig. Anim. Prod. 3, 199–208.Google Scholar
Dent, J. B. (1964). Economic aspects of nutrition in the bacon pig with reference to enterprise planning. Ph.D. thesis, Univ. Aberdeen.Google Scholar
Dickerson, J. W. T. & Widdowson, E. M. (1960). Chemical changes in skeletal muscle during development. Biochem. J. 74, 247–57.CrossRefGoogle ScholarPubMed
Elson, C. E., Fuller, W. A., Kline, E. A. & Hazel, L. N. (1963). Effect of age on the growth of porcine muscle. J. Anim. Sci. 22, 946–52.CrossRefGoogle Scholar
Evans, R. E. (1962a). The amino acid supplementation of diets rich in maize meal for weanling pigs. J. agric. Sci., Camb. 58, 209–18.CrossRefGoogle Scholar
Evans, R. E. (1962b). The isoleucine requirement of the weanling pig. J. agric. Sci., Camb. 58, 413–22.CrossRefGoogle Scholar
Evans, R. E. (1963). The threonine requirement of the weanling pig. J. agric. Sci., Camb. 60, 259–66.CrossRefGoogle Scholar
Holme, D. W., Coey, W. E. & Robinson, K. L. (1965). The effect of level of dietary protein on the carcass composition of bacon pigs. Anim. Prod. 7, 363–76.Google Scholar
Homb, T., Husby, M. & Lysø, A. (1962). A comparison of different protein feeds of animal origin in growth experiments with pigs. Meld. Norg. LandbrHogsk. 41 (No. 4), pp. 41.Google Scholar
Janicki, M. A., Kolaczyk, S. & Kortz, J. (1966). Colour of meat as influenced by level of nutrition in pigs. Roczn. Nauk roln. (B), 88, 31–37.Google Scholar
Jones, A. S., Hepburn, W. R., Cadenhead, A. & Boyne, A. W. (1962). Effect of protein quality and protein level in diets on the performance of young pigs. Anim. Prod. 4, 185–93.Google Scholar
Jones, A. S., Livingston, D. M. S. & Livingstone, R. M. (1963). Effects of varying protein and lysine levels in the diets of pigs. Anim. Prod. 5, 222–3 (Abstract).Google Scholar
Jones, A. S., Livingstone, R. M. & Cadenhead, A. (1965). A comparison of the performance of pigs given different protein concentrates in diets providing the same ‘available’ lysine concentration. Anim. Prod. 7, 286 (Abstract).Google Scholar
Lawrie, R. A. (1966). Meat Science. London: Pergamon Press.Google Scholar
Lucas, I. A. M., McDonald, I. & Calder, A. F. C. (1960). Some further observations upon the effects of varying the plane of feeding for pigs between weaning and bacon weight. J. agric. Sci., Camb. 54, 81–98.CrossRefGoogle Scholar
McMeekan, C. P. (1940a). Growth and development in the pig with special reference to carcass quality characters. I. Age changes in growth and development. J. agric. Sci., Camb. 30, 276–336.CrossRefGoogle Scholar
McMeekan, C. P. (1940b). Growth and development in the pig with special reference to carcass quality characters. II. The influence of plane of nutrition on growth and development. J. agric. Sci., Camb. 30, 387–427.CrossRefGoogle Scholar
McMeekan, C. P. (1940c). Growth and development in the pig with special reference to carcass quality characters. III. The effect of plane of nutrition on the form and composition of the bacon pig. J. agric. Sci., Camb. 30, 511–69.CrossRefGoogle Scholar
Otto, E. (1964). The carcass value of pigs weighing 110 kg. Arch. Tierz. 7, 335–63.Google Scholar
Robinson, D. W. (1965). The nitrogen metabolism, body composition and growth of pigs fed diets with varying protein: lysine ratios. Br. Vet. J. 121, 350–61.CrossRefGoogle ScholarPubMed
Robinson, D. W. & Lewis, D. (1964). Protein and energy nutrition of the bacon pig. II. The effects of varying the protein and energy levels in the diets of finishing pigs. J. agric. Sci., Camb. 63, 185–90.CrossRefGoogle Scholar
Stant, E. G. Jr, Martin, T. G., Judge, M. D. & Harrington, R. B. (1968). Physical separation and chemical analysis of the porcine carcass at 23, 46, 68 and 91 kilograms liveweight. J. anim. Sci. 27, 636–44.CrossRefGoogle Scholar