Here is the best thing ever! (breeding)

reina__ · July 2009

I just realized something. Well there's this thing called "coefficient of inbreeding." It's a calculation of how inbred the dog is, or how related the dogs in its pedigree are to one another. 15% is the highest it SHOULD be, or at least as high as breeders should try to go. Anything above that, the dog is more inbred than what is healthy and will die sooner. Basically what that means, is if you outcross bloodlines there is around 0-1% COI (a.k.a. very very low coefficient of inbreeding) because there are little to no dogs related to the previous generations on each side. SO, mutts. Mutts' pedigrees have no related animals in previous generations (unless someone is breeding mutts in an established program or kennel), which is a HUGE reason why they live longer than purebreds. ON AVERAGE Also, that thing where people think mutts are healthier than purebreds. I think there are two sides to this. Breeders who breed pures for legitimate reasons to keep their health intact, and who weed out health problems in their stock, will create puppies (in general) who are very healthy. On the other hand, breeders who breed pures just for the sake of it and not keeping the breed's/dog's best interests in mind, will not produce 100% healthy dogs. Again, two purebreds of different breeds that breed on the street are outcrossing bloodlines and will produce pups of 0% COI (1/1000000 chance that they're related), therefore, these pups MAY or MAY NOT be healthier than their parents. If one parent carries recessive gene for, let's say, mutant deformity gene, and the other doesn't, they will not be deformed, but they'll carry it. The fact they're 0% COI will keep them living longer and there is less of a chance of the genes producing sick dogs because of their non-inbred DNAs. *sigh* Isn't that the best thing ever? This just occurred to me as I was talking to 3eagles. YES! I love dog genetics. Best!

3eagles · July 2009

I agree with you and inbreeding/linebreeding to an extent. I think as long as a person REALLY knows the good and bad qualities of their line than inbreeding is okay. It doubles up on the good AND bad genes. The thing with purposely breeding mutts though.. People are breeding purebred dogs that are very similar to each other. Like, Poodles and Labradors.. both share some of the same main health problems. When you breed them together you're doubling up on those problems and that causes the pups to have a higher chance of genetic issues. I'd never agree to random mutts or most dogs breeding, lmao. I will for the sake of this conversation though..I see what you're saying about the random mutt breeding. Two dogs that are totally different from a million different breeds have less of a chance of producing those bad genes therefore they live longer. BUT! Dogs that have been selectively bred and outcrossed when bad genes pop up still have just as good of a chance of a long life as a randomly bred mutt does.

reina__ · July 2009

Yeah, for example. Say we have a female German Shepherd and a male Presa Canario. The GSD carries demodectic mange, which means she won't have it, but she carries the gene for it. The Presa also carries demodectic mange. R demo x R demo = D demo. Recessive demodex + recessive demodex = dominant demodex = most if not all puppies in the GSD x Presa litter will have demodectic mange, even though they are mutts. The thing about dogs is that they are all mutts. A "mutt" is just a mixture between two or more human-established breeds. There are no "breeds" in nature, because really, dogs of different breeds don't produce infertile offspring. Zebra x horse would though.

reina__ · July 2009

Any thoughts/

ilyanthony1995 · July 2009

:? am i onyl one confused?

Berton · July 2009

Nope xD Rei and Eagles lost me after sentence one.

NickelbackLuver · July 2009

xDDD lol. I understood it... sort of xD

ilyanthony1995 · July 2009

Wheaton wrote:

Nope xD Rei and Eagles lost me after sentence one.

CallyKats Dachshunds · July 2009

I think I understood that right..and if I did then that is a great thing. -nods- ..... But if not..then oh well.

Hibachi · July 2009

I understood! xD I want to start a career in dog breeding [Great Danes] and this is quite interesting. Thanks for pointing it out, I never though of it like this. 8]

Verwirrung · July 2009

I get it! After rereading it twice.

NickelbackLuver · July 2009

Verwirrung wrote:

I get it! After rereading it twice.

Lol, I had to reread it too to understand it xD though, I normally only half pay attention the first time i read through things xD And yes, it is a good thing ^.^ Lol, I was going to breed Basset Hounds... but now I think Im gonna use the space in my house for rescuing dogs. :P Otherwise, I'd probably take this closer to heart. Thanks for the info though =D

lovefrompaige · July 2009

Oh wowzers! I understood everything you said! >.> Thats amazing!

I wonder if my terrier mix carries the recessive gene *looks down* :? You twos are ubber smrat

Zagari Wolf · July 2009

Interesting stuff! We had a unit of COI in my vet class last semester. I semi understand it.

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Here is the best thing ever! (breeding)

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