127 / 148
Молочнохозяйственный вестник, №4 (16), IV кв. 2014
127
favourable as well as autumn-winter, but summer are aimless. To determine the most
favourable season for cows’ calving per milk yield the comparison property of two
breeds, Kholmogory and Black-and-White along with the separation factor, has been
made. According to the research the influence of cow’s calving season on the milk
yield has been determined as well as the best results have been obtained in spring
period. However, it is necessary to determine the reasons of milk yield decrease and to
eliminate them in other season periods. It will help to obtain equal milk yields during
the year. The determination of the calving season influence is actual for any milk farm,
because it can help to detect the reserves of studs’ productivity increase.
Электронная Научная СельскоХозяйственная Библиотека