Transfer of embryos from bovine leukaemia virus-infected cattle to uninfected recipients: preliminary results
Eaglesome, M.D.; Mitchell, D.; Betteridge, K.J.; Randall, G.C.; Singh, E.L.; Samagh, B.S.; Hare, W.C.
Veterinary Record 111(6): 122-123
1982
ISSN/ISBN: 0042-4900 PMID: 6289509 Document Number: 193170
150 embryos, in the 6th or 7th day of development, were collected from cattle infected with bovine leukaemia virus (BLV) and transferred to uninfected recipients. Thirty-two pregnancies resulted. Two animals aborted at seven months. Three sets of twins and one single calf were still-born. The remaining 26 pregnancies produced 27 live calves which were raised to six months of age. All of the recipients, pregnant and non-pregnant, and all of the calves remained serologically negative for antibodies to BLV-glycoprotein antigen.