Originally Posted by Zeke
No, selective breeding does not mean in breeding. It means that these animals have been selected due to a certain characteristic and then bred. Any animal in a breedin program is being selectively bred for certain traits. In this case the extra muscle is why these animals have been bred. Maybe somewhere there has been in inbreeding but I highly doubt all of these cows are that closely related.
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I was halfway
joking ... :) that's why I said hehe
But I just wondered that since it is a mutation or whatever you want to call it... I'm sure it's not that common and it had to have been a bit inbred at least in the beginning. You know what I mean? I'm not sure how to put my thoughts into words..