Embryo transfer in pigs: a method for introducing genetic material into primary specific-pathogen-free herds
Curnock, R.M.; Day, B.N.; Dziuk, P.J.
American Journal of Veterinary Research 37(1): 97-98
1976
ISSN/ISBN: 0002-9645 PMID: 129018 Document Number: 99890
Fifty-five embryos were transferred from four Duroc donor sows into four crossbred recipient gilts. The embryonic survival rate was 66%; 53% of eggs ovulated by donors were represented by live pigs at term. Three of the litters were obtained by hysterectomy of the recipients and introduced into a primary specific-pathogen-free herd, thereby saving the donor sows for subsequent use. Embryo transfer provided a method for exploiting the genetic potential of superior females.