The use of frozen sperm of elite roosters for inseminating hens reduces egg fertilization rate, but increases livability,
live weight, average daily gain of offspring, dressing percentage, and European efficiency index. A cryopreserved rooster
sperm bank has been created.
Original Russian Text © A.B. Mal’tsev, A. B. Dymkov, 2008, published in Doklady Rossiiskoi Akademii Sel’skokhozyaistvennykh
Nauk, 2008, No. 2, pp. 50–52.
Presented by V.I. Fisinin, Academician of the Russian Academy of Agricultural Sciences