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Interbreeding. e.x siblings/offspring to parent
- Thread starter RO8 H
- Start date
Nanci
Alien Lover
This is a link to discussion of inbreeding, of all species. WARNING. There are swear words and NSFW comments. If you are easily offended, you won't like it. But it's got some really great discussion, too.
Snakes are inbred all the time. Sibling to sibling, parent to child. Less close matings are called line breeding. Most likely, because the really bad deformities have been bred out of the cornsnake population as a whole, you aren't going to have a problem. But sometimes you'll get a deformed hatchling, and then who is to say if it is a result of inbreeding aligning a bad mutation, or an incubation "accident," or a non-genetic developmental deformity? We just don't know.
If you want to be safest, breed unrelated snakes. If you breed _any_ snakes, you need to have a plan for what you will do with deformed hatchings. I have seen no more deformities with closely-related pairs than I have with unrelated pairs, but it's a relatively small sample size. If you inbreed, it's best to outcross as soon as possible, in the next generation. Then you can line breed back.
Snakes are inbred all the time. Sibling to sibling, parent to child. Less close matings are called line breeding. Most likely, because the really bad deformities have been bred out of the cornsnake population as a whole, you aren't going to have a problem. But sometimes you'll get a deformed hatchling, and then who is to say if it is a result of inbreeding aligning a bad mutation, or an incubation "accident," or a non-genetic developmental deformity? We just don't know.
If you want to be safest, breed unrelated snakes. If you breed _any_ snakes, you need to have a plan for what you will do with deformed hatchings. I have seen no more deformities with closely-related pairs than I have with unrelated pairs, but it's a relatively small sample size. If you inbreed, it's best to outcross as soon as possible, in the next generation. Then you can line breed back.
Nanci
Alien Lover
This isn't snakes, and isn't inbreeding. One of my sisters had a stroke a year ago, and it was discovered that she carried the Factor V Leiden blood clotting disorder, recessively. My other sister, a doctor, got tested, and learned that she too carried it, as a het. She speculated that our dad was homozygous, since they both had it. I got tested, and I don't carry it. So Dad is only het, as is Mom. (Cool side note- one of the methods of testing involves snake venom!) (The het version still affects blood clotting, just not as severely as the homo version, and it was discovered after my father's death, so he was never tested).