Growing demand from his buyer for milk quality has led Andrew Jennings to change his breeding policy and use embryo transfer (ET) to make faster changes in milk constituents. Conventional ET can speed up genetic production rate fourfold compared with artificial insemination, by allowing specific cow genetics with desirable traits to be multiplied in the herd. The ET process involves programming a cow with fertility medicines to produce more oocytes, artificially inseminating, collecting the embryos and transferring into a recipient dam […]