Do Sibling Animals Breed?

@Victoria7 (1242)
Spain
January 14, 2007 10:55am CST
I know if a brother and sister have a child between them they are risking all kinds of birth defects. Is it the same with animals? Do sibling cats for example risk having kittens with birth defects due to their parentsĀ“ close relationship? I just watched a 1944 documentary called "The Private Life of a Cat" and it got me wondering! By the way, you can see great movies and documentaries on www.jellotv.com also www.weeteevee.com is good. If you have a fast connection the movies download as you watch them! Cheaper than renting or buying anyway. So... back to the question...!! Anyone know?
2 responses
• United States
14 Jan 07
Yes, it is true for any mammal. I grew up on a farm and we bred sheep. My father would never breed his ewes to their father. What happens is the bad dominant and recessive genes do not stand a chance to escape or to be "beat out" by the good ones. Inbreeding can cause temperments in animals to be beyond control.
@sedel1027 (17851)
• United States
14 Jan 07
I am pretty sure that genetics work the same way with animals as in humans. I know that pure bred aniumals that come out of the same family tend to have defects and get sick a lot because of the interbreeding. I think that is normally a son and mother though.