I. Varlyakov*, V. Radev, Т. Slavov, R. Mihaylov Departmet of Morphology, Physiology and Animal Nutrition, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria Abstract. A physiology experiment was conducted to evaluate the effects of diet supplementation with non-pro

I. Varlyakov, V. Radev, Т. Slavov, N. Grigorova Abstract. Milking behaviour of 102 dairy, cows (Brown cattle breed – imported from Austria) was studied by computer monitoring system in 3 periods: Period 1(P1) – 60 days after the group formation, Period 2 (P2) – 120 d