FIELD: agriculture.
SUBSTANCE: method involves determining type of milk productivity from formula T=D/K, where D is age (days) at which animal reaches economic maturity; K is reduction coefficient of relative growth rate of animals. Calves having T=8.3 and less are considered as high milk productivity animals, with T=38.1 and more calves are considered as low milk productivity animals and calves with T=8.4-38.0 are considered as average milk productivity animals.
EFFECT: increased efficiency in determining formation of milk type animals and provision for reliable forecasting of animal's milk productivity.
1 tbl, 1 ex
Title | Year | Author | Number |
---|---|---|---|
METHOD TO ESTIMATE FUTURE MILK PRODUCTIVITY OF HEIFERS | 2006 |
|
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CATTLE GROWTH RATE FORECASTING METHOD | 0 |
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RU2688336C2 |
METHOD OF EVALUATION OF MEAT PRODUCTIVITY OF CATTLE YOUNG STOCK IN SUCKLING PERIOD | 2011 |
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RU2763349C1 |
Authors
Dates
2006-03-10—Published
2004-05-06—Filed