Press "Enter" to skip to content

Bull ‘super dads’ are being engineered to produce sperm from another father

Artificial insemination is used to improve the genetics of dairy cattle, like this bull. Reproductive biologists are developing an unusual way to produce farm animals with desirable traits: injecting surrogate fathers — whose own sperm production has been crippled by gene editing — with sperm-producing stem cells from another male that pass along ‘elite’ genes to offspring. From then on, the surrogate sire’s offspring will not be his own, but the donor’s. The goal is to spread genes for desirable traits, such as disease resistance or heat tolerance, through a population of animals in fewer generations than is possible […]

Be First to Comment

    Leave a Reply

    Your email address will not be published. Required fields are marked *