A field study on embryo transfer in cattle
Drost, M.; Anderson, G.B.; Cupps, P.T.; Horton, M.B.; Warner, P.V.; Wright, R.W.
Journal of the American Veterinary Medical Association 166(12): 1176-1179
1975
ISSN/ISBN: 0003-1488 PMID: 1141035 Document Number: 86487
34 four-day-old embryos were collected surgically from 5 Simmental and 3 German Yellow heifers. The embryos were transported by air and were surgically transferred into recipient cows 4-121/2 h later. 19 recipient cows were diagnosed pregnant approx. 50 days after transfer. If embryos classified as abnormal were excluded, the pregnancy rate was 18/27 (67%).
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