PROFITABILITY ALGORITHM FOR MILK YIELD FROM COWS, WITH BUTTERFAT CONSIDERED
It is common knowledge that long-lasting use of cows in a herd is believed economically feasible. However, milking ability throughout the period of use of a cow is of essence, which reasonable terms can be determined at early stages by calculating BV by CP1l (breeding value according to profitability of milk yield from a cow for one lactation) The article provides selective efficiency according to this index. However, value of a cow is determined not only by amount of the milk produced, but also by its qualitative performances. We propose an improved formula of CP, with butterfat considered, and have developed an algorithm of calculation of butterfat for a computer program SGS-VNIIGRZH).