[Results of liver function tests in abomasal displacement and ketosis of cattle]

Totally 187 cows were used in this research, 101 of these had left and 60 right abomasal displacement. The rest of them had ketosis. Blood and urine samples were collected from all of the cows for laboratory analyses. The amount of bile acid and total bilirubin and activity of aspartate aminotransferases (AST) in blood samples and the amount of ketone in the urine samples were determined. The results obtained from this study were as follows: The mean value of bile acid, total bilirubin and AST-activity were 38.37 mumol/l, 13.06 mumol/l and 92.26 U/l in right abomasal displacement cows and 37.93 mumol/l, 14.39 mumol/l and 68.39 U/l in left abomasal displacement cows respectively. Although important differences (P less than 0.05) were detected in AST-values between these three groups of diseases, there was no significant differences in bile acid and total bilirubin. There was a correlation between total bilirubin and bile acid and total bilirubin and AST in the right and left abomasal displacement cows. Same correlation was determined between total bilirubin and AST in acetonemic cows. But there was no correlation between total bilirubin and bile acid in acetonemic cows and between bile acid and AST in abomasal displacement and acetonemic cows. A very important connection was determined between the amount of total bilirubin and degree of the acetone in the urine (P less than 0.001) of the left abomasal displacement cows. The same connection (P less than 0.05) was determined between the degree of the acetone in the urine and AST-activity in the same cows.(ABSTRACT TRUNCATED AT 250 WORDS)