FIELD: animal breeding.
SUBSTANCE: invention relates to poultry breeding, in particular to breeding of poultry. Eggs are sampled by the weight and the average weight of yolk, without breaking the wholeness of eggshell. Selection of eggs is performed at the age of 30 weeks of hen’s life with an egg’s weight of 62–68 g and yolk’s weight of not more than 20 g. Weight of the yolk is determined by the formula y = -0.93 + 0.33*x, where y is the yolk’s weight, g; x is the weight of the egg, g.
EFFECT: higher efficiency of selecting young stock of meaty hens.
1 cl, 4 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR SELECTION OF POULTRY MEAT DIRECTION OF PRODUCTIVITY | 2018 |
|
RU2716083C1 |
| MEAT BIRD SELECTION METHOD | 1999 |
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| METHOD FOR EARLY SELECTION OF LAYING HENS | 2021 |
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RU2761354C1 |
| METHOD OF WEIGHING EGG YOLK WITHOUT BREAKING SHELL | 2007 |
|
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| METHOD FOR SELECTION OF QUAIL HATCHING EGGS | 2021 |
|
RU2757231C1 |
| METHOD FOR PREDICTING HATCHABILITY AND PRESERVATION OF CHICKENS | 2017 |
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| METHOD FOR IMPROVING POULTRY EMBRYOS VIABILITY | 2015 |
|
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| METHOD FOR SELECTING HENS OF BROWN-SHELL CROSSES | 2003 |
|
RU2248124C2 |
| METHOD FOR INCREASING RESISTANCE, MEAT AND EGG PRODUCTIVITY OF POULTRY HEAD, IN PARTICULAR BROILER CHICKENS AND LAYING HENS IN INDUSTRIAL POULTRY BREEDING | 2018 |
|
RU2706550C1 |
| METHOD FOR GROWING REARING STOCK FOR PARENTAL CHICKEN FLOCK | 2011 |
|
RU2495588C2 |
