N. Groseva1, I. Valchev2*, Ts. Hristov2, L. Lazarov2, D. Kanakov2, R. Binev2 1Department of General and Clinical Pathology, Faculty of Veterinary Medicine, Trakia University, 6000 Stara Zagora, Bulgaria 2Department of Internal Non-Infectious Diseases, Faculty of Veterinary Medicine, T

I. Valchev, N. Grozeva, D. Kanakov, Ts. Hristov, L. Lazarov, R. Binev, Y. Nikolov Abstract. Changes in blood concentrations of some biochemical indices (alpha amylase, lipase, insulin and blood glucose) as well as in pancreas morphology were monitored in mulard ducks with experimental