It does promise a huge change though. Ideally, you keep a few cows and bulls reproducing, making tastier stem cells for further replication. In essence, you co

It does promise a huge change though. Ideally, you keep a few cows and bulls reproducing, making tastier stem cells for further replication. In essence, you could feed a huge population of humans using only a few individuals, although it would still be wise to keep those "stem" cows in case sickness or something else strikes them. That being said, I'm afraid at some point the economic incentives will just go onto making a bunch of embryos mature and harvesting them completely for stem cells.