FIELD: animal science, cattle reproduction, cattle selection. SUBSTANCE: genetically valuable donor cow of embryos is inseminated with mixed sperm taken from several improver bulls. Then immunogenetical analysis is conducted to determine an origin of transplant calves according to parental blood groups. EFFECT: higher intensity in using donor cows of embryos, accelerated terms to obtain transplant calves of different genotypes according to male's line from one donor cow. 2 tbl
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