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The present study was aimed at evaluating – for the domestic meat industry – the crosses of Danish pig breeds, originating from mating Landrace‑Yorkshire (LY) sows with Duroc or Duroc-Pietrain (DP) boars, as regards their burdening with RYR1 gene, as well as meat quality and technological value (including hot carcass weight). The studies were conducted on 64 porkers from two genetic groups: LY×D and...
The purpose of the studies was to demonstrate to what degree genotypes of calpastatin (CAST/RsaI) and myogenin (MYOG) genes as well as the interaction between them may affect the carcass and meat quality of pigs. The investigations were conducted on 397 stress resistant pigs (free of RYR1 T allele). It was demonstrated that the favourable effect of the variants of CAST and MYOG genes on carcass...
The study aimed at determining whether the quality traits of pork are related to the genotype at loci CAST/MspI and MYOG and whether an interaction exists between them, affecting the pork quality traits. The analyses were conducted on 397 porkers free of gene RYR1T of the five following purebred and crossbred groups: Landrace, Landrace × Yorkshire, Landrace × Duroc, (Landrace × Yorkshire) × Duroc,...
The study aimed at determining whether pig carcass traits are significantly related to the genotypem at loci CAST/MspI and MYOG and whether an effect exists of interaction between them as regards muscling and morphological traits of carcass. The analyses were conducted on 397 porkers free of gene RYR1T of the five following purebred and crossbred groups: Landrace, Landrace × Yorkshire,Landrace × Duroc,...
The aim of this review was to present the basic meat quality deviations, criteria and methods identifying quality of meat as well as to define their outside values for selection in breeding herds and for classification of meat quality for the meat processing industry. Over the years 1988-2004, the research team of the Chair of Pig Breeding and Meat Science elaborated (determining the criteria and...
The review is aimed at presenting the state of current knowledge into the structure of a glycogen molecule as well as its synthesis and degradation during post mortem changes in muscle tissue. Currently-accepted model of the structure of glycogen molecule is that suggested by Whelan [Immonen, 2000; & Pösö Puolanne. 2005]. It has been demonstrated that the structure of a molecule is very well adjusted...
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