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2 347 362

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IPC

A01K67/00(2006-01-01)

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Application

2007117067/13, 2007-05-07

(24)

Start date

2007-05-07

(22)

Actual filing date

2007-05-07

(45)

Published

2009-02-27

(72)

Inventor

Egorova Anna Vasil'EvnaElizarov Evgenij StepanovichShakhnova Ljudmila Vasil'EvnaKarpenko Ljudmila SergeevnaManukjan Vardges AgavardovichAmelina Ol'Ga LeonidovnaKholodkov Vitalij Aleksandrovich

(73)

Holder

Gnu Vserossijskij Nauchno-Issledovatel'Skij I Tekhnologicheskij Institut Ptitsevodstva

METHOD OF SELECTING AUTOSEXING MEAT CHICKENS BY SEX Russian patent published in 2009 - IPC A01K67/00

Abstract RU 2347362 C1

FIELD: agriculture.

SUBSTANCE: 24-hour chickens are examined with regard to their live weight, exterior, visual assessment of wing for development of tectrix and flight feather. Notably selection by sex is carried out at 2-3-d day of age on base of feather index, which is determined by ratio of length of tectrix and the fourth flight feather by expression: I_feather= L_t/L_f×100%. Also feather index of slowly feathered male chickens is 115% and more, while for fast feathered female chickens this index is less 60%.

EFFECT: upgraded accuracy of selection by sex, increased preservation and live weight of chickens selected and raised by sex.

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RU 2 347 362 C1

Authors

Egorova Anna Vasil'Evna

Elizarov Evgenij Stepanovich

Shakhnova Ljudmila Vasil'Evna

Karpenko Ljudmila Sergeevna

Manukjan Vardges Agavardovich

Amelina Ol'Ga Leonidovna

Kholodkov Vitalij Aleksandrovich

Dates

2009-02-27—Published

2007-05-07—Filed