If you're low on prime meat and have a breeding pair, I highly recommend killing off the babies for prime. They give more than a Bronto. Run it up for others to utilize.
After getting stacked 4 mutations with heavily boosted rates I can confirm these guys cause internal suffering when your intentionally trying to mutate them
They do a good amount of damage per hit and they also have a very fast hit speed or attack recovery so they hit like 3 times in a second I had a level 50 that did 70 per hit thats a dps of about 210 !
Can I just say that this thing is the BEST meat harvester I have ever had. It can jump across the map to a Rex or brown to or whatever, then freeze it in place and kill it ez.