FIELD: agriculture.
SUBSTANCE: method involves evaluating a biological object through biochemical analysis. Litter is used as a biological object. Wherein, chickens and cockerels are preliminary separately placed in cages. At the young age of 7-28 days fresh litter per day is selected and the mass fraction of nitrogen is determined in the average sample. With a mass fraction of nitrogen in litter, 6.12-6.55% chickens are selected for the breeding group.
EFFECT: use of invention allows to increase the accuracy of selection of young chicken meat breeds by productivity.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR EVALUATING ONE-DAY YOUNG BIRDS | 1996 |
|
RU2121268C1 |
| METHOD FOR SELECTION OF MEAT-TYPE CHICKEN YOUNG STOCK IN CASE OF MASS SELECTION | 2009 |
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| METHOD FOR MATCHING PARENTAL PAIRS ON INCREASED NATURAL RESISTANCE, STRESS-RESISTANCE AND PERFORMANCE QUALITIES IN OFFSPRING | 2003 |
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| METHOD FOR EARLY PREDICTION OF EGG PRODUCTIVITY IN HENS | 2016 |
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| METHOD FOR GROWING AND MANAGEMENT OF PARENT POULTRY OF EGG PRODUCTION | 2013 |
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| METHOD TO COMPLETE A FLOCK OF LAYING HENS | 1999 |
|
RU2177687C2 |
| METHOD FOR CHOOSING YOUNG MEAT CHICKEN HEN FOR SELECTION | 1994 |
|
RU2057439C1 |
| METHOD FOR COMPLETING HEN BREEDER FLOCK | 1998 |
|
RU2141197C1 |
| METHOD OF EARLY ASSESSMENT OF LAYING HENS IN BREEDING | 2012 |
|
RU2507739C1 |
| METHOD FOR GROWING PARENTAL FLOCK EGG-LAYING HENS | 2012 |
|
RU2503250C2 |
