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Developments of carcass cuts, organs, body tissues and chemical body composition during growth of pigs

Published online by Cambridge University Press:  13 March 2007

S. Landgraf ,
A. Susenbeth ,
P.W. Knap ,
H. Looft ,
G.S. Plastow ,
E. Kalm  and
R. Roehe
S. Landgraf
Affiliation:
Institute of Animal Breeding and Husbandry, Christian-Albrechts-University of Kiel, Hermann-Rodewald-Strasse 6, D-24118, Kiel, Germany
A. Susenbeth
Affiliation:
Institute of Animal Nutrition, Physiology and Metabolism, Christian-Albrechts-University of Kiel, Hermann-Rodewald-Strasse 9, D-24098, Kiel, Germany
P.W. Knap
Affiliation:
PIC International Group, Ratsteich 31, D-24837, Schleswig, Germany
H. Looft
Affiliation:
PIC International Group, Ratsteich 31, D-24837, Schleswig, Germany
G.S. Plastow
Affiliation:
PIC International Group, Ratsteich 31, D-24837, Schleswig, Germany
E. Kalm
Affiliation:
Institute of Animal Breeding and Husbandry, Christian-Albrechts-University of Kiel, Hermann-Rodewald-Strasse 6, D-24118, Kiel, Germany
R. Roehe*
Affiliation:
Institute of Animal Breeding and Husbandry, Christian-Albrechts-University of Kiel, Hermann-Rodewald-Strasse 6, D-24118, Kiel, Germany
*
† E-mail: Rainer.Roehe@sac.ac.uk Present address: Sustainable Livestock Systems, Scottish Agricultural College, Bush Estate, Penicuik EH26 0PH, UK.
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Abstract

A serial slaughter trial was carried out to examine the developmental change of physical and chemical body composition in pigs highly selected for lean content. A total of 48 pigs (17 females and 31 castrated males) were serially slaughtered and chemically analysed. Eight pigs were slaughtered at 20, 30, 60, 90, 120 and 140 kg live weight, (LW) respectively. The carcass was chilled and the left carcass side was dissected into the primal carcass cuts ham, loin, shoulder, belly and neck. Each primal carcass cut was further dissected into lean tissue, bones and rind. Additionally, the physical and chemical body composition was obtained for the total empty body as well as for the three fractions soft tissue, bones and viscera. Viscera included the organs, blood, empty intestinal tract and leaf fat. The relationship between physical or chemical body composition and empty body weight (EBWT) at slaughter was assessed using allometric equations (log10y=log10a+b log10 EBWT). Dressing percentage increased from 69·4 to 85·2% at 20 to 120 kg and then decreased to 83·1% at 140 kg LW, whereas percentage of soft tissue, bones and viscera changed from 23·5 to 33·0%, 10·1 to 6·3% and 14·7 to 10·3%, respectively, during the entire growth period. Substantial changes in proportional weights of carcass cuts on the left carcass side were obtained for loin (10·5 to 17·5%) and belly (11·3 to 13·8%) during growth from 20 to 140 kg. Soft tissue fraction showed an allometric coefficient above 1 ( b=1·14) reflecting higher growth rate in relation to the total empty body. The coefficients for the fractions bones and viscera were substantially below 1 with b=0·77 and 0·79, respectively, indicating substantial lower growth relative to growth of the total empty body. Lean tissue allometric growth rate of different primal cuts ranged from b=1·02 (neck) to 1·28 (belly), whereas rates of components associated with fat tissue growth rate ranged from b=0·62 (rind of belly) to 1·79 (backfat). For organs, allometric growth rate ranged from b=0·61 (liver) to 0·90 (spleen). For the entire empty body, allometric accretion rate was 1·01, 1·75, 1·02 and 0·85 for protein, lipid, ash and water, respectively. Extreme increase in lipid deposition was obtained during growth from 120 to 140 kg growth. This was strongly associated with an increase in backfat and leaf fat in this period. Interestingly, breeds selected for high leanness such as Piétrain sired progeny showed an extreme increase in lipid accretion at a range of LW from 120 to 140 kg, which indicates that selection has only postponed the lipid deposition to an higher weight compared with the normally used final weight of 100 kg on the performance test. The estimates obtained for allometric growth rates of primal carcass cuts, body tissue and chemical body composition can be used to predict changes in weight of carcass cuts, determine selection goals concerning lean tissue growth, food intake capacity, etc. and generally as input parameters for pig growth models that can be used to improve the efficiency of the entire pig production system for pigs highly selected for lean content.

Keywords

allometrybody compositioncarcass compositiongrowthorganspigs
Type
Research Article
Information
Animal Science , Volume 82 , Issue 6 , December 2006 , pp. 889 - 899
Copyright
Copyright © British Society of Animal Science 2006

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References

Akridge, J.T.Brorsen, B.W.Whipker, L.D.Forrest, J.C.Kuei, C.H.Schinckel, A.P. (1992) Evaluation of alternative techniques to determine pork carcass value Journal of Animal Science 70: 18–28.Google Scholar
Berg, R.T.Andersen, B.B.Liboriussen, T. (1978) Growth of bovine tissues. 1. Genetic influences on growth patterns of muscle, fat and bone in young bulls Animal Production 26: 245–258Google Scholar
Brody, S. (1945) Bioenergetics and growth Reinhold Publishing Corp. New York.Google Scholar
Cole, D.J. A.White, M.R.Hardy, B.Carr, J.R. (1976) Tissue growth in the pig Animal Production 22: 341–350Google Scholar
Davis, A.S. (1974) A comparison of tissue development in Piétrain and Large White pigs from birth to 64 kg live weight 2. Growth changes in muscle distribution Animal Production 19: 377–387Google Scholar
Davis, A.S. (1983) Growth and development in pigs: a reanalysis of the effects of nutrition on body composition Journal of Agricultural Science, Cambridge 100: 681–687Google Scholar
Davis, A.S.Kallweit, E. (1979) The effect of body weight and maturity on the carcass composition in pig Zeitschrift für Züchtungskunde und Züchtungsbiologie 96: 6–17CrossRefGoogle Scholar
Davis, A.S.Pryor, W.J. (1977) Growth changes in the distribution of dissectable and intramuscular fat in pigs Journal of Agricultural Science, Cambridge 89: 257–266Google Scholar
De Lange, C.F. M.Morel, P.C. H.Birkett, S.H. (2003) Modeling chemical and physical body composition of the growing pig Journal of Animal Science 81: (suppl. 2) E159–E165Google Scholar
Doedt, H. 1997. Qualitative und wirtschaftliche Aspekte der Schweineproduktion unter Berücksichtigung von Handelswert und Gesundheitsstatus. Doctoral thesis, University Kiel, GermanyGoogle Scholar
Doornenbal, H.Tong, A.K. W. (1981) Growth, development and chemical composition of the pig. IV. Relative growth of visceral organs Growth 45: 279–285Google ScholarPubMed
Evans, D.G.Kempster, A.J. (1979) The effect of genotype, sex and feeding regimen on pig carcass development. 1. Primary components, tissues and joints Journal of Agricultural Science, Cambridge 93: 339–347CrossRefGoogle Scholar
Fortin, A.Wood, J.D.Wehlehan, O.P. (1987) Breed and sex effects on the development and proportions of muscle, fat and bone in pigs Journal of Agricultural Science, Cambridge 108: 39–45CrossRefGoogle Scholar
Fortin, A.Wood, J.D.Wehlehan, O.P. (1985) Development of carcass tissues in entire male and female Large White, Piétrain and Iron Age pigs Animal Production 40: 541–542 (abstr.)Google Scholar
Fujii, J.Otsu, K.Zorzato, F. de Leon, S.Khanna, V.K.Weiler, J.E.O'Brien, P.J.Maclennan, D.H. (1991) Identification of a mutation in porcine ryanodine receptor associated with malignant hyperthermia Science 153: 448–451Google Scholar
Gu, Y.Schinckel, A.P.Martin, T.G. (1992) Growth, development and carcass composition in five genotypes of swine Journal of Animal Science 70: 1719–1729CrossRefGoogle ScholarPubMed
Huxley, J.S. (1932) Problems of relative growth London MethuenGoogle Scholar
Kempster, A.J.Evans, D.G. (1979) The effects of genotype, sex and feeding regimen on pig carcass development. 2. Tissue weight distribution and fat partition between depots Journal of Agricultural Science, Cambridge 93: 349–358Google Scholar
Ketels, O. 1997. Zerlegekalkulation bei Jungbullen und ökonomische Bewertung der Schlachtnebenprodukte bei Jungbullen und Mastschweinen. Doctoral thesis, University Kiel, GermanyGoogle Scholar
Knap, P.W.Roehe, R.Kolstad, K.Pomar, C.Luiting, P. (2003) Characterization of pig genotypes for growth modeling Journal of Animal Science 81: (suppl.2) E187–E195Google Scholar
Landgraf, S.Susenbeth, A.Knap, P.W.Looft, H.Plastow, G.S.Kalm, E.Roehe, R. (2006) Allometric association between in vivo estimation of body composition during growth using deuterium dilution technique and chemical analysis of serial slaughtered pigs Animal Science 82: 223–231Google Scholar
Möhn, S.De Lange, C.F. M. (1998) The effect of body weight on the upper limit to protein deposition in a defined population of growing gilts Journal of Animal Science 76: 124–133Google Scholar
Mohrmann, M.Roehe, R.Knap, P. WLooft, H.Plastow, G.S.Kalm, E. (2006a) Quantitative trait loci associated with AutoFOM grading characteristics, carcass cuts and chemical body composition during growth of Sus scrofa Animal Genetics In pressGoogle Scholar
Mohrmann, M.Roehe, R.Susenbeth, A.Baulain, U.Knap, P.W.Looft, H.Plastow, G.S.Kalm, E. (2006b) Association between body composition of growing pigs determined by magnetic resonance imaging, deuterium dilution technique, and chemical analysis Meat Science 72: 518–531Google Scholar
Moughan, P.J.Verstegen, M.W. A. (1988) The modelling of growth in the pig Netherlands Journal of Agricultural Science 36: 145–166Google Scholar
Pomar, C.Kyriazakis, I.Emmans, G.C.Knap, P.W. (2003) Modeling stochasticity: dealing with populations rather than individual pigs Journal of Animal Science 81: (suppl.2) E178–E186Google Scholar
Rook, A.J.Ellis, M.Whittemore, C.T.Phillips, P. (1987) Relationship between whole-body chemical composition, physically dissected carcass parts and backfat measurements in pigs Animal Production 44: 263–273Google Scholar
Scheper, J.Scholz, W. (1985) DLG-Schnittführung für die Zerlegung der Schlachtkörper von Rind, Kalb, Schwein und Schaf. Arbeitsunterlagen DLG, Frankfurt am Main.Google Scholar
Schinckel, A.P.de Lange, C.F.M. (1996) Characterization of growth parameters needed as inputs for pig growth models Journal of Animal Science 74: 2021–2036Google Scholar
Seebeck, R.M. (1968) Developmental studies of body composition Animal Breeding Abstracts 36: 167–181Google Scholar
Statistical Analysis Systems Institute (1992) SAS user's guide, version 6. SAS Institute Inc. Cary, NC.Google Scholar
Susenbeth, A. 1984. Berechnung der Körperzusammensetzung von Schweinen aus dem mit Hilfe von D2O bestimmten Körperwassser. Doctoral thesis, University Hohenheim, GermanyGoogle Scholar
Tess, M.W.Dickerson, G.E.Nienaber, J.A.Ferrell, C.L. (1986) Growth, development and body composition in three genetic stocks of swine Journal of Animal Science 62: 968–979Google Scholar
Tholen, E.Baulain, U.Henning, M.D.Schellander, K. (2003) Comparison of different methods to assess the composition of pig bellies in progeny testing Journal of Animal Science 81: 1177–1184CrossRefGoogle ScholarPubMed
Wagner, J.R.Schinckel, A.P.Chen, W.Forrest, J.C.Coe, B.L. (1999) Analysis of body composition changes of swine during growth and development Journal of Animal Science 77: 1442–1466Google Scholar
Whittemore, C.T. (1993) Growth and body composition changes in pigs. In The science and practice of pig production, 2nd ed. pp. 53–86. Blackwell Science Ltd, Oxford.Google Scholar
Whittemore, C.T.Fawcett, R.H. (1976) Theoretical aspects of a flexible model to simulate protein and lipid growth in pigs Animal Production 22: 87–96Google Scholar
Whittemore, C.T.Tullis, J.B.Emmans, G.C. (1988) Protein growth in pigs Animal Production 46: 437–445Google Scholar