A genetically modified livestock animal, and methods of making and using the same, the animal comprising a genetic modification to disrupt a target gene selectively involved in gametogenesis, wherein the disruption of the target gene prevents formation of functional gametes of the animal. Animals that create progeny with donor genetics, and methods of making and using the same. Cells, and methods of making and using the cells, with a genetic modification to disrupt a target gene selectively involved in gametogenesis.
