Cross Breeds

What effects do inbreeding have on dogs/cats?

I'm trying to do a little report on inbreeding with dogs/cats, and i have heard that inbreeding causes agression. is this true? if so, can someone please give me a credible (not wikipedia) source that says this? thanks!

Public Comments

1. No, although it can cause mental instability. Basically, it comes down to genetics. Many traits are either dominant or recessive. BB, Bb or bb. When you line breed, you can highlight and bring out good features of a dog. But you can also bring up hidden recessive traits. Having Bb Bb parents could produce bb offspring, which could end up resulting in genetic diseases appearing in the line
2. http://www.dogbreedinfo.com/inbreeding.htm http://www.dogplay.com/Breeding/inbreeding.html
3. inbreeding or linebreeding?? inbreeding like a brother and sister not very good but linebreeding although sounds really sick like a second cuz! can be healthy and better if your trying to keep the bloodline stronger then a lot of outcrossing
4. It can cause hip disfunctions. Google it. I know it is common in Labradors.
5. You end up with the animal equivalent of a red neck. Cheers Lisa
6. Inbreeding can cause Major health problems and mental and physically disability.
7. Thi gives a little info. It may be somewhat helpful. http://www.dogbreedinfo.com/inbreeding.htm
8. effects of inbreeding. Limits genetic pool of breed/area/population Can cause recessive genes to become dominante Can cause mental/ emotional/ physical impairments Can increase susceptability to disease Eventually causes impaired fertility and if continued long enough sterility ( so it is self limiting after a fashion) Mortality.. death http://www.dogbreedinfo.com/inbreeding.htm http://cc.ysu.edu/~helorime/inbred.html http://cal.vet.upenn.edu/index.php?page=effects-of-inbreeding
9. I agree with everything Toy Fox Terrier stated. I suggest that you browse breeder's websites who have their pedigrees posted. If the dogs are champions, or extensive champion lines, you will find line breeding occures in all of them. If done correctly, line breeding can have amazing results. It can either double up on the good genes, or double up on the bad. To sum it up, if you take the best of the best, and breed it to a certain relative who is also best of the best, you will get amazing results. That's how dogs become champions. All of these show dogs that we see on tv, have line breeding in their background. I have been a breeder for over 10 years of AKC Champion line hounds. The most amazing dogs that I've owned, have been line bred. It usually shows as Grandfather being bred to grandaughter, or something similar. You don't want to go any closer than that, like brother to sister.