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.: Home > Animal Science Papers and Reports > 2004 > Volume 22 Number 4 > El؟bieta Krzêcio1, Maria Koوwin-Podsiad³a1, Jolanta Kury³2, Katarzyna Antosik1, Andrzej Zybert1, Halina Sieczkowska1, Edward Pospiech3, Andrzej £yczyٌski4, Bo؟ena Grzeœ3

An association between genotype at the CAST locus (calpastatin) and meat quality traits in porkers free of RYR1T allele

El؟bieta Krzêcio1, Maria Koوwin-Podsiad³a1, Jolanta Kury³2, Katarzyna Antosik1, Andrzej Zybert1, Halina Sieczkowska1, Edward Pospiech3, Andrzej £yczyٌski4, Bo؟ena Grzeœ3
1 Department of Pig Breeding and Meat Evaluation, University of Podlasie, Prusa 14, 08-110 Siedlce, Poland 2 Polish Academy of Sciences Institute of Genetics and Animal Breeding, Jastrzêbiec, 05-552 Wَlka Kosowska, Poland 3 Institute of Meat Technology, Agricultural University of Poznaٌ, Wojska Polskiego 27, 60-637 Poznaٌ, Poland 4 Department of Animal Origin Raw Materials, Agricultural University of Poznaٌ, Wojska Polskiego 27, 60-637 Poznaٌ, Poland
Abstract :

The study aimed at determining whether parametres describing the quality of pork and its basic
composition are significantly related to the genotype at locus CAST (calpastatin). Calpastatin is
a calpain inhibitor and the proteolytic system calpain/calpastatin plays an important role in the
growth and development of muscles, as well as in the processes of post mortem degradation of muscle proteins. The investigations covered 397 porkers free of the RYR1T gene, of which 91 were purebred Landrace and the remaining were crossbreds: 65 Landrace × Yorkshire, 129 Landrace × Duroc, 83 [(Landrace × Yorkshire) × Duroc] and 29 [(Landrace × Yorkshire) × (Duroc × Pietrain)]. The results obtained indicate that the value of a series of parametres characterizing the quality of pork is significantly dependent on the animal’s genotype at locus CAST. Selecting animals for a favourable CAST genotype would render it possible to control not only the quality of fresh mebut also lower the losses occurring during storage (natural drip) and processing (curing and thermal
processing – the TY indicator).at (tenderness),

Keywords :
calpastatin gene / candidate gene / gene polymorphism / pig / pork

Date Deposited : 11 Aug 2011 13:00

Last Modified : 11 Aug 2011 13:00

Official URL: http://www.ighz.edu.pl/

Volume 22, Number 4, - 2004

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