[Biochemical and biophysical indicators in muscle biopsies (m. longissimus dorsi) in relation to the halothane and creatine kinase test in pigs].

The largest differences in the studied biophysical (pH value, R-value, water-binding capacity) and biochemical (adenosine triphosphate, creatine phosphate, glucose-6-phosphate, glucose, lactate, glycogen) parameters of the biopsy of m. longissimus dorsi between the hal+ (8 pigs) and hal- (4 pigs) groups were found at weights above 80 kg. The hal- pigs showed an increase in the anaerobic nature of metabolism in m. longissimus dorsi, in relation to weight. The activity of creatine kinase in the blood of 43 pigs showed only low or medium correlations with the quality of meat after slaughter.