Differentiated influence of heating and certain chemical agents on serum alkaline phosphatase activity in pigs.

The effect of heating, urea and L-homoarginine on the total activity of serum alkaline phosphatase was investigated in pigs of Akp B, Akp BC and Akp A phenotypes. Each of these factors decreased the activity of the enzyme, but under the experimental conditions applied the effect exerted by L-homoarginine was weakest. Statistically significant differences were demonstrated in the degree of action of each factor in different phenotypes of the animals. It was observed that urea as well as heating decreased the total activity of serum alkaline phosphatase in B-phenotype animals more than in animals of BC and AB phenotypes.