Record Details

Birth of live calves by in vitro embryo production of slaughtered cows in a commercial herd in South Africa

Journal of the South African Veterinary Association

Field Value
Title Birth of live calves by in vitro embryo production of slaughtered cows in a commercial herd in South Africa
Creator Arlotto, T. Gerber, D. Terblanche, S.J. Larsen, J.
Subject — Blastocyst; Bovelder; Bovine; Embryo; IVF; Oocyte
Description In vitro fertilisation (IVF) has become a useful breeding tool in most of the developed world. In this paper the success of bovine IVF and the birth of live calves under typical South African conditions is reported. Oocytes for IVF were collected from the ovaries of 6 slaughtered Bovelder beef cows. On average, 36.2 oocytes per donor were retrieved. From these oocytes, 43 blastocysts were produced from 5 of the donors by IVF with frozen Bovelder semen. The best 11 of these embryos were transferred into oestrous, synchronised Bovelder recipients in the same herd. As a result, 7 calves were born (a 64 %calving rate) from 4 of the original donors. The calves had a normal birth mass, but the mean gestation length of the male calves was significantly longer than the herd average (291.6 versus 285.2 days respectively). No calving difficulties were encountered. In summary, it was shown that IVF for bovine embryo production and transfer is possible on a commercial basis in South Africa.
Publisher AOSIS Publishing
Date 2001-07-09
Type — —
Format application/pdf
Identifier 10.4102/jsava.v72i2.620
Source Journal of the South African Veterinary Association; Vol 72, No 2 (2001); 72-75
Language en
Coverage — — —
Rights Copyright information Ownership of copyright in terms of the Work remains with the authors. The authors retain the non-exclusive right to do anything they wish with the Work, provided attribution is given to the place and detail of original publication, as set out in the official citation of the Work published in the journal. The retained right specifically includes the right to post the Work on the authors’ or their institutions’ websites or institutional repository. Disclaimer: The publisher, editors and title owner accept no responsibility for any statement made or opinion expressed by any other person in this Work. Consequently, they will not be liable for any loss or damage sustained by any reader as a result of his or her action upon any statement or opinion in this Work. In cases where a manuscript is NOT accepted for publication by the editorial board, the portions of this agreement regarding the publishing licensing shall be null and void and the authors will be free to submit this manuscript to any other publication for first publication. Our copyright policies are author-friendly and protect the rights of our authors and publishing partners.