EFFECTS OF SURGICAL-CORRECTION OF LEFT AB OMASAL DISPLACEMENT ON SOMEPARAMETERS OF ENERGY-METABOLISM IN DAIRY-COWS

The objective of this study was to investigate whether the surgical re placement of left abomasal displacement (omentopexy) leads to typical stress changes in the energetic metabolism of dairy cows: twenty dairy cows, aged approximately 4.4 years were used. Six blood samples were collected in order to determine concentrations of cortisol, glucose, f ree fatty acids, L(+)-lactate, and beta-hydroxybutyrate once before, a nd five times after surgery. The surgical intervention led to a signif icant elevation in cortisol, glucose, FFA and lactate blood levels. Th ese stressrelated changes were observed over a 24 hour-period after su rgery. In contrast to these parameters, serum concentration of beta-hy droxybutayrate slowly decreased over the entire observation period (72 hours). The results show that surgical correction of left abomasal di splacement has a short-term stress effect on energy metabolism of dair y cows.