Preliminary study on the influence of age and body mass on serum enzyme activity

摘要

Due to an intensive growth and development of newborn animals, not only the concentration of metabolites and biocatalysts, but also the serum enzyme activity during the suckling period have a wider range than the referent values reported in the literature for pigs. The objective of this study was to compare the enzyme activity in the serum of two piglet groups: a group with a small birth mass and a group with a normal birth mass, related to their growth. The serum analysis was carried out on the 7th and 14th day of life. In the seven-day-old piglets, a higher activity of alanine aminotransferase (p<0,01) was determined in the group with a small birth mass. Within the group of piglets with a small birth mass, a significantly lower activity of alkaline phosphate (p<0,01) was determined on the 14th day of life related to the value on the 7th day. In the serum of the piglets with a normal birth mass, on the 14th day, a statistically higher activity was determined for alanine aminotransferase (p<0,01) and lactate dehydrogenase (p<0,05), and a significantly lower activity of alkaline phosphatase (p<0,01) and gamma-glutamyltransferase (p<0,05) related to the value on the 7th day.