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Embryo production of donors of the Kostroma breed in response to different FSH preparations


Biotekhnol metody v selektsii Vseros NII plem dela: 53-57
Embryo production of donors of the Kostroma breed in response to different FSH preparations
In Kostroma cows, a superovulatory response occurred in 80% of animals. However, the percentage of ova fertilized was only 55-57, approx. one quarter less than in Kholmogory and Russian Black Pied cows. This was attributed to poor fertilizing ability of the semen of inbred Kostroma bulls. When the dose of FSH for superovulation was lowered from 50 to 32 mg, the yield of embryos suitable for transfer decreased.


Accession: 002095586



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