So I was breeding allows for mutations and combined stats and when a baby doesn't have the desired stat I killed them. I then harvested with metal pick and got 40 to 60 prime meat per juvenile I killed. This may work with other creatures that you get prime meat from such as mammoth or dire bear. So just breed some of those and kill the juveniles an you will have tons of prime meat. Not that my harvests rates are at 4.0.I also have pretty good maturation mating and egg hatch rate too.
People need to talk about mobile more.I’m on mobile and what I find best is to tame two turtles and go after some arges.But you can build some spike walls( wood or metal) and lead some “NON AGGRESSIVE” massive claw butchering Dino to them and wait until dead to harvest. (If u do this make sure to have a bed to respond in)
How to get a shitload of prime: Use a flyer (preferably an argent) and pick up an ant. Then drop the ant next to a megatherium. It will go on a killing spree but never harvest the bodies. Once it has finished, go down an collect your prizes. This works best near the redwoods as the most creatures live there that will drop prime.