Inbreeding?

Looking forward to Animal Husbandry, but while discussing it with my wife she had an interesting question: Can the animals become in-bred and suffer from undesireable mutations? Hilarious discussions about 5-legged horses followed.
In my opinion, turkeys should also have this potential, making it important to bring in a new Gobbler once in a while.
Any other thoughts?
In my opinion, turkeys should also have this potential, making it important to bring in a new Gobbler once in a while.
Any other thoughts?