Abstract
The average plasma amylase activity in 716 healthy adult dogs examined by the PNP-7G method was found to be 2093.5±624.5IU/l with a range from 552.6IU/l to 3908.6IU/l. The levels in newborns and puppies were smaller than those in adult dogs. In adult dogs, age, sex, breed, estrus, pregnancy, lactation, feeding, starvation or obesity had no influence on the amylase results, and no daily or seasonal fluctuation was found. Elevation of the amylase activities was observed in dogs with renal diseases or upper intestinal lesions. Some conditions influencing the renal and/or pancreatic functions through direct or indirect effects affected the plasma amylase levels.
