Authors
Pavlina Ivanova Hristova
Department of Anatomy, Physiology and Animal Science, Faculty of Veterinary Medicine, University of Forestry, Sofia, Bulgaria
Iliana Stefanova Ruzhanova-Gospodinova
Department of Anatomy, Physiology and Animal Science, Faculty of Veterinary Medicine, University of Forestry, Sofia, Bulgaria
Mihail Stoyanov Chervenkov
Department of Anatomy, Physiology and Animal Science, Faculty of Veterinary Medicine, University of Forestry, Sofia, Bulgaria
Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, Sofia, Bulgaria