[The age-related and genotypic variability of the blood serum enzymes in swine at an industrial farm complex].

Enzymes in pig blood serum have been studied for the dynamics of their activity as dependent on the breed peculiarities and production types. High correlations are revealed between the enzyme activity and the pig's fattening capacity as well as their stress-resistance. The use of the developed exponential functions makes it possible to achieve high probability (r = 0.88-0.89) in predicting meat and fattening capacities of pigs.