Usefulness of pH1 and EC50 values, glycogen, glucose and lactic acid content in biopsy samples taken from pigs of different RYR1 genotypes for meat quality prediction
2000
Krenkova, L. | Urban, T. | Kuciel, J. (Mendelova Zemedelska a Lesnicka Univ., Brno (Czech Republic))
The aim of this study was to compare the values of pH1, electrical conductivity, muscle glycogen, glucose and lactic acid content in the commercial hybrid pigs with different RYR1 genotypes and the prediction of meat quality from biopsy samples of Musculus longissimus lumborum et thoracis taken in vivo, approximately at 80 kg live weight. RYR1 genotypes influence the values of meat quality both after slaughter and from biopsies. The occurence of PSE meat ranged in biopsy samples according to pH from 10.16 to 14.58 % but after slaughter from 9.47 to 54.35 %. The levels of muscle glycogen, glucose and lactic acid did not differentiate between the RYR1 genotypes. The values of pH1, electrical conductivity, glycogen, glucose and lactic acid in biopsy samples were not useful for prediction of meat quality after slaughter.
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