Study and complex assessment of cattle farms which different in capacity
2008
Russev, N., Institute of Animal Science, Kostinbrod (Bulgaria) | Gajdarska, V., Institute of Animal Science, Kostinbrod (Bulgaria)
The objective of the present investigation was to assess dairy farms with different capacity in different regions in the country according to preliminary methods (Russev, 2003). The study comprised data from 25 farms with different capacity, generally 1313 cows from different breeds and at different lactations. Bulgarian Dairy breeds and the evaluated relationship between milk production and reproductive traits – open days, protein yield, and protein content in milk were studied. The estimation of the milk productivity, reproductive traits, open days, health condition, feeding and management of the farms was performed on the basis of the statistical analysis. The average value of cows milk production from the studied farms was within 3890 kg to 7200 kg, for the small, middle as well as the big farms. The study is part of a larger research project to account for the effect of the dairy farms. The results demonstrated a good milk yield – the mean milk yield in the investigated herds varied between 3890 and 7200. A high milk yield was obtained in all farms – small, middle and large scale farms. The higest value of the average milk yield was achieved in the large scale farms.
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