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Growth characteristics and carcass composition of pigs with known genotypes for stress susceptibility over a weight range of 70 to 120 Kg

  • J. L. Aalhus (a1), S. D. M. Jones (a1), W. M. Robertson (a1), A. K. W. Tong (a1) and A. P. Sather (a1)...

Abstract

A total of 805 Lacombe pigs of different genotype with respect to halothane sensitivity (halothane positive, nn = 205; heterozygote, Nn = 214; halothane negative, NN = 386) were slaughtered over a range in live weight (70 to 120 kg) to assess tissue growth patterns using the allometric equation (y = aXh). The nn genotype was older at slaughter than the NN genotype, but pigs from each genotype were killed over a similar weight range. The relative growth of the primal cuts was influenced by genotype, with nn pigs having a lower coefficient for the bottom shoulder (picnic) and a higher coefficient for the belly. The relative growth of bone was similar for genotypes (P > 0·05) but the relative growth of lean was lower and the relative growth of total fat and depot fat (subcutaneous and intermuscular) was higher for the nn genotype compared with the Nn and NN genotypes. On a within-tissue basis, the relative growth of the tissues in each primal was similar, except for the ham, where the relative growth of lean was higher for nn pigs compared with the two other genotypes. Small differences in tissue distribution were evident, but seldom exceeded 30 g/kg. Although nn pigs had a higher lean content and higher lean: bone ratio than Nn or NN pigs at similar live weights, their relative advantage in composition decreased with increasing live weight.

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Berg, R. T. and Buttereield, R. M. 1976. New Concepts of Cattle Growth. John Wiley, Toronto.
Brody, S. 1964. Bioenergetics and Growth. Hafner Publishing., New York.
Carlson, J. P., Christian, L. L., Kuhlers, D. L. and Rasmusen, B. A. 1980. Influence of the porcine stress syndrome on production and carcass traits. Journal of Animal Science 50: 2128.
Davies, A. S. 1974a. A comparison of tissue development in Pietrain and Large White pigs from birth to 64 kg live weight. 1. Growth changes in carcass composition. Animal Production 19: 367376.
Davies, A. S. 1974b. A comparison of tissue development in Pietrain and Large White pigs from birth to 64 kg live weight. 2. Growth changes in muscle distribution. Animal Production 19: 377387.
Fortin, A., Wood, J. D. and Whelehan, O. P. 1987a. Breed and sex effects on the development and proportions of muscle, fat and bone in pigs. Journal of Agricultural Science, Cambridge 108: 3945.
Fortin, A., Wood, J. D. and Whelehan, O. P. 1987b. Breed and sex effects on the development, distribution of muscle, fat and bone, and the partition of fat in pigs. Journal of Agricultural Science, Cambridge 108: 141153.
Hammond, J. 1932. Growth and Development of Mutton Qualities in the Sheep. Oliver and Boyd, Edinburgh.
Jensen, P. 1981. Carcass and meat quality of pigs with known genotypes for halothane susceptibility. In Porcine Stress and Meat Quality — Causes and Possible Solutions to the Problems (ed. Frøystein, T., Slinde, E. and Standal, N.), pp. 267273. Agricultural Food Research Society, Ås, Norway.
Jensen, P. and Barton-Gade, P. A. 1985. Performance and carcass characteristics of pigs with known genotypes for halothane susceptibility. In Stress Susceptibility and Meat Quality in Pigs (ed. Ludvigson, J. B.), Publication, European Association for Animal Production, No. 33, pp. 8187.
Jones, S. D. M., Murray, A. C., Sather, A. P. and Robertson, W. M. 1988. Body proportions and carcass composition of pigs with known genotypes for stress susceptibility fasted for different periods of time prior to slaughter. Canadian Journal of Animal Science 68: 139149.
Jones, S. D. M., Richmond, R. J., Price, M. A. and Berg, R. T. 1980. Effects of breed and sex on the patterns of fat deposition and distribution in swine. Canadian Journal of Animal Science 60: 223230.
Martin, A. H., Fredeen, H. T., Weiss, G. M., Fortin, A. and Sim, D. 1981. Yield of trimmed pork product in relation to weight and backfat thickness of the carcass. Canadian Journal of Animal Science 61: 299310.
Richmond, R. J., Jones, S. D. M., Price, M. A. and Berg, R. T. 1979. Effects of breed and sex on the relative growth and distribution of bone in pigs. Canadian Journal of Animal Science 59: 471479.
Sather, A. P. and Murray, A. C. 1989. The development of a halothane-sensitive line of pigs. Canadian Journal of Animal Science 69: 323331.
Searle, S. R. 1971. Linear Models. John Wiley, Toronto.
Sehested, E., Syrstad, O., Frøystein, T. and Standal, N. 1988. Effects of halothane genotype on production traits in Norwegian Landrace pigs. Ada Agriculturae Scandinavica 38: 6776.
Statistical Analysis Systems Institute. 1985. SAS User's Guide: Basics and Statistics. 5th ed SAS Institute, Cary, NC.
Webb, A. J., Carden, A. E., Smith, C. and Imlah, P. 1982. Porcine stress syndrome in pig breeding. Proceedings of the 2nd World Congress on Genetics Applied to Livestock Production, Madrid, Vol. 5, pp. 588608. Editorial Garsi, Madrid.
Webb, A. J., Southwood, O. L. and Simpson, S. P. 1987. The halothane test in improving meat quality. In Evaluation and Control of Meat Quality in Pigs (ed. Tarrant, P. V., Eikelenboom, G. and Monin, G.), pp. 297315. Martinus Nijhoff, Boston, Massachusetts.

Keywords

Growth characteristics and carcass composition of pigs with known genotypes for stress susceptibility over a weight range of 70 to 120 Kg

  • J. L. Aalhus (a1), S. D. M. Jones (a1), W. M. Robertson (a1), A. K. W. Tong (a1) and A. P. Sather (a1)...

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