The effect of paragenetic factors on body development of Simmental bull dams

Body development and type are very important indices of production ability of cows, their capacity to consume sufficient quantity of food, produce technologically high quality milk, reduce the energy consumption in production of milk, remain in exploitation as long as possible and give more progeny. This research included 278 cows of Simmental breed selected into the category of bull dams on the territory of Republic of Serbia. By application of method of least squares following average values of exterior measures were obtained: height to withers 136,04 cm; carcass length 165,81 cm; breast depth 73,61 cm; breast girth 201,12 cm; body mass 695,29 kg. Regions influenced statistically highly significantly all investigated exterior traits (P<0,01). Year of measuring had no statistically significant effect (P>0,05) on body development of Simmental bull dams. Obtained values were considerably uniform without any greater oscillations.