Comparison of the embryo survival rate in heifers following artificial insemination, non-surgical blastocyst transfer or both

in Reproduction
Authors: J. M. Sreenan and T. McDonagh
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Summary. In Exp. 1, embryo survival rates of 45 and 47% were recorded after artificial insemination and ipsilateral transfer respectively. In Exp. 2, pregnancy rates of 62 and 60% were recorded after artificial insemination and contralateral transfer to inseminated recipients respectively. In this experiment the contralateral transferred embryo survival rate was 44%. Transferred embryo survival was lower overall when donors and recipients were out of phase by 1 day than when exactly synchronous.

 

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