Studies on embryo transfer in multiparous sows, 2. Recovery and transfer of embryo.
1988
Lee K.W. | Son D.S. | Kim S.C. | Kim H.I. | Jeon D.K. | Ryu I.S. | Lee J.K. | Chee S.H. | Park C.S. | Seok H.B.
This study of embryo transfer was carried out to investigate the possibility of introducting new genetic material into closed herds for disease control and of transporting embryos between countries. On the basis of the number of ovulation points counted, 69.1% of embryos were recovered. A very high proportion (86.6%) of 1-cell embryos were recovered from the oviducts of donor sows at 37 to 41 hours after first mating. Sixty-seven embryos were transferred to 5 recipients. Four recipients farrowed a total of 18 pigs, giving a survival rate of 26.9%. Average pig weight at birth was 1.46kg.
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