FIELD: agriculture. SUBSTANCE: method involves selecting hens by productivity of maximum intensity at peak egg yield period of 27-30 weeks. Method allows earlier evaluation of most productive hens to be effectuated and breeder flock to be formed four weeks earlier. EFFECT: increased efficiency in early evaluation of hens for productivity and prolonged usage of method. 3 tbl
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LAYING HEN SELECTING METHOD | 2000 |
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METHOD OF SELECTING PULLETS OF EGG LAYERS FOR SELECTION | 0 |
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Authors
Dates
1996-04-10—Published
1994-06-10—Filed