Use of estrogens or antiandrogens or estrogens in...

Details Use of estrogens or antiandrogens or estrogens in... Use of estrogens or antiandrogens or estrogens in...

A - Human Necessities

61

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A61K 31/565 (2006.01) A01K 67/00 (2006.01) A61K 31/00 (2006.01) A61K 31/05 (2006.01) A61K 31/085 (2006.01) A61K 31/56 (2006.01)

Patent

CA 2067839

JLT28Y 18391Y TITLE OF THE INVENTION USE OF ESTROGENS OR ANTIANDROGENS OR ESTROGENS IN COMBINATION WITH ANTIANDROGENS FOR REVERSAL OF MALE SEXUAL PHENOTYPE IN POULTRY ABSTRACT OF THE INVENTION Fertilized poultry embryos are treated with estrogens or antiandrogens or estrogens in combination with antiandrogens during a period of embryonic development when the gonads are bipotential. This treatment causes genetic males to exhibit a female phenotype. When sex reversed male birds are crossed with normal male birds all offspring will be genotypically male.

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