FIELD: animal farming. SUBSTANCE: method involves selecting cows by mean value of total evaluation factor values: quantity of fat, protein, sugar in milk for 305 days of the first lactation on the basis of unit of live weight, and by effective usage of exchange energy consumed for milk synthesis and stress resistance coefficient. EFFECT: increased efficiency in precise determination of dairy cattle rating and simplified method. 2 tbl
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Authors
Dates
1998-01-20—Published
1996-04-09—Filed