1 Department of Biology, Faculty of Veterinary Medicine, University of Belgrade, Bul. oslobodjenja 18, 11000 Belgrade, Serbia. Electronic address: vdraskovic@vet.bg.ac.rs.
2 Patent Co. DOO, Vlade Ćetkovića 1a, 24211 Mišićevo, Serbia.
3 Department of Nutrition and Botany, Faculty of Veterinary Medicine, University of Belgrade, Bul. oslobodjenja 18, 11000 Belgrade, Serbia.
4 Department of Parasitology, Faculty of Veterinary Medicine, University of Belgrade, Bul. oslobodjenja 18, 11000 Belgrade, Serbia.
5 Department of Veterinary Pathology, Faculty of Veterinary Medicine, University of Belgrade, Bul. oslobodjenja 18, 11000 Belgrade, Serbia.
6 Department of Biology, Faculty of Veterinary Medicine, University of Belgrade, Bul. oslobodjenja 18, 11000 Belgrade, Serbia.