Authors
Dimirtinka Zapryanova
Trakia University, Faculty of Veterinary Medicine, Student’s campus, 6015, Stara Zagora, Bulgaria
Teodora Mircheva
Trakia University, Faculty of Veterinary Medicine, Student’s campus, 6015, Stara Zagora, Bulgaria
Tsanko Hristov
Trakia University, Faculty of Veterinary Medicine, Student’s campus, 6015, Stara Zagora, Bulgaria
Lazarin Lazarov
Trakia University, Faculty of Veterinary Medicine, Student’s campus, 6015, Stara Zagora, Bulgaria
Aleksander Atanasov
Trakia University, Faculty of Veterinary Medicine, Student’s campus, 6015, Stara Zagora, Bulgaria
Yoana Petrova
Trakia University, Faculty of Veterinary Medicine, Student’s campus, 6015, Stara Zagora, Bulgaria
Damyan Lalev
Research Institute of Mountain Stockbreeding and Agriculture,, Troyan, Bulgaria