M. Mekroud1, N. Arzour-Lakehal1, N.A. Ouchene-Khelifi1,2, N. Ouchene1,2*, A. Titi1, A. Mekroud1 1PADESCA laboratory, Institute of Veterinary Sciences, Road of Guelma 25100 El Khroub, University of Mentouri Brothers, Constantine 1, Algeria 2 Institute of Veterinary Sciences, University

K. Stankov Department of Management, Faculty of Economics, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscript received 22 August 2020; accepted for publication 16 October 2020) Abstract. A study was conducted on the effect of clinical mastitis at Holstein-Friesian cows on the

D. Dimov Department of Applied Ecology and Animal Hygiene, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria (Manuscript received 1 September 2018; accepted for publication 16 January 2019) Abstract. The aim of the present study was to perform a zoo-hygienic asses

D. Dimov1*, Tch. Miteva1, I. Marinov2, Zh. Gergovska2, Т. Penev1, A. Enchev3 1Department of Applied Ecology and Animal Hygiene, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria 2Department of Animal Science – Ruminants and Dairy Farming, Faculty of Agriculture, T

D. Dermendzhieva1*, G. Kostadinova1, G. Petkov1, D. Dimov1, T. Dinev2, T. Penev1, Tch. Miteva1, J. Mitev1 1Department of Applied Ecology and Animal Hygiene, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria 2Department of Biochemistry, Microbiology and Physics, Fa

D. Dimov1*, Ch. Miteva1, Zh. Gergovska2 1Department of Applied Ecology and Animal Hygiene, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria. 2Department of Animal Science – Ruminants and Dairy Farming, Faculty of Agriculture, Trakia University, 6000 Stara Zagora,

D. Dimov* Department of Applied Ecology and Animal Hygiene, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria Abstract. The welfare and comfort of dairy cows is of particular importance and therefore, would become an issue of increasing interest for dairy farmers.

T. Penev1*, Zh. Gergovska2, I. Marinov2, V. Kirov3, K. Stankov4, Y. Mitev1, Ch. Miteva1 1Department of Applied Ecology and Animal Hygiene, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria 2Department of Animal Science, Faculty of Agriculture, Trakia University, 6

Tch. Miteva, T. Penev, Zh. Gergovska, J. Mitev, N.Vasilev, V. Dimova Abstract. The study was performed at three dairy cattle farms from three districts in the country: Plovdiv, Bourgas, and Veliko Tarnovo. The cows housed at all three farms were of the Holstein-Friesian breed. A total

T. Penev Abstract. Dairy cow locomotion and its correct interpretation are extremely important for assessment of normal locomotion and lameness. In the literature, cattle lameness is often described as deviation from the normal locomotion due to pain or discomfort in the region of fee