Production of monozygotic twins by micromanipulation and cervical transfer in the cow.

Abstract

To develop the practical production of monozygotic twins in cattle, the ability of day 6 to 7 cow embryos to survive after they were split into two halves was tested. Day 6 to 7 embryos were recovered by the cervical method from superovulated Charolais heifers. Only normal embryos were selected at the advanced compaction stage when the cavity appears. Each… (More)

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