FIELD: stock-raising. SUBSTANCE: cattle females receive with sperm an extrauterine body (catgut 0.8+/-0.1 cm in length) into uterine corn corresponding to ovary with preovulation follicle. EFFECT: increased productivity due to increased percent of incalvers achieved by prevention of embryonic mortality. 2 tbl
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Authors
Dates
2001-06-20—Published
1999-08-02—Filed