The serum alkaline phosphatase activity was determined with 64 Korean cattles in different sexe and age groups, using p-nitrophenylphosphate as the substrate. The results obtained were as follows: 1. The mean value of serum alkaline phosphatase activi...
The serum alkaline phosphatase activity was determined with 64 Korean cattles in different sexe and age groups, using p-nitrophenylphosphate as the substrate. The results obtained were as follows: 1. The mean value of serum alkaline phosphatase activity in Korean cattle was $1.78{\pm}0.21$ Bessey-Lowry units/ml, and $1.71{\pm}0.21$ units/ml. in female and $1.86{\pm}0.21$ units/ml. in male, respectively. 2. The serum alkaline phosphatase activity decreased with age from 4 years group. 3. No statistical significance was recognized among the sexes, but difference among the age groups was found to be highly significant.