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07-14-04, 08:32 PM
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#1
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Member
Join Date: Jun-2004
Posts: 23
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inbreeding...
new to breeding, so forgive my ignorance.
i have a pair of baby garters from the same mother. if i keep them and breed them later on, will there be complications or any problems from them mating?
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07-14-04, 08:38 PM
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#2
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Member
Join Date: Apr-2003
Location: Toronto, Ontario
Age: 36
Posts: 5,322
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From what i understand no. Thats how they come up with morphs and all that. Their are arguments that in the long run their can be signs but i doubt that. The other side of the argument suggests that this happens in the wild all the time.
When I get a pair I try to get them from different lines, but if they happened to be siblings I wouldnt pay much attention. But thats just me.
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Adam
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07-15-04, 01:31 AM
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#3
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Former Moderator no longer active
Join Date: Feb-2002
Location: Christchurch
Posts: 10,251
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Yes and No. In the wild, animals become stronger and evolve through inbreeding due to natural selection. The problems in captivity that arise with inbreeding is that we are no longer breeding the strongest specimens with the strongest specimens since natural selection is not in play. Animals with weak genes are unable to be successfully weeded out. So all in all, it may work to your advantage, but there is no real way of knowing ahead of time. If they are both outwardly strong, healthy, trouble-free specimens, I would say go ahead and pair them up in the future. However, if they produce offspring with undesirable qualities, you shouldn't continue to breed them in the future.
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07-15-04, 08:46 AM
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#4
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Member
Join Date: Mar-2002
Location: Shawville, Quebec
Age: 52
Posts: 52
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From what I understand, it takes repeated generations of inbreeding to cause problems in snakes. One generation of hot sweaty sibling sex isn't going to irrevocably blow up the gene pool.
But . . .
Let's say you breed your siblings and have offspring. Then you sell or give your offspring to someone else, who decides he has a male and a female and decides to breed them. After all, one generation of inbreeding won't hurt. So he breeds them. Then he sells his offspring to someone else, who decides to breed the siblings, because, after all, one generation of inbreeding won't hurt . . .
Somewhere along the line some fresh genetics will have to be added. If people always assume that it'll be someone else, we'll end up with lots of inbred bloodlines.
My take on this subject -- make of it what you will -- is that while a generation or two of inbreeding probably won't hurt, it's probably a <em>very</em> good idea to get unrelated breeding stock wherever possible -- especially if it's not that hard to find another unrelated bloodline, and even if it takes a little work.
Especially with captive bred stuff, it might not be a bad thing to assume that their ancestors might be a little inbred, and that their offspring will might be inbred once they leave your hands, so it just might be up to you to make sure that inbreeding doesn't go too far out of hand.
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07-15-04, 04:08 PM
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#5
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Veteran Member
Join Date: Oct-2002
Location: Calgary, Alberta
Age: 57
Posts: 4,080
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I would recomend breeding stock from different sources. Read above post & think about how many times they may have been inbred prior without your knowledge or that of the person you recv. them from. I have worked with snakes that have been inbred too much before with very poor results, resulting in eggbinding, large infertile clutches & screwed up malformed babies. Why risk it when there are unrelated specimens available to you? I wouldn't, but heck if you want to breed brothers & sisters that came from brothers & sisters go hard, but don't be too disappointed when things don't work out in your favour. IMHO why risk it? Mark
P.S. there are differences between line breeding & just inbreeding also. Line breeding is usually done with say an Albino male & a bunch of unrelated common females & then the female het offspring may be bred back to their father or better yet their het 1/2 brothers from another clutch to create Albinos & more hets (66% pos hets if it was from het to het). Inbreeding is usually done by people too cheap to buy some unrelated stock that just keep using all their own offspring over & over.
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Mark's GONE SNAKEE! working with select Colubrids (Corns, GB Kings, EIs) and Woma Pythons
All stock parasite free and established on F/T prey. No PMs please email at gonesnakee@shaw.ca
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07-15-04, 04:22 PM
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#6
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Member
Join Date: Jun-2003
Location: Calgary, AB
Age: 48
Posts: 5,638
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If you CAN outcross, do it. But with some species, it's hard if not impossible to get unrelated stock because of their rarity, CITES classification, etc. Line breeding as Mark mentioned above in order to produce hets that eventually produce certain morphs can be ok. But, sometimes you won't get the results you want. By the same token though, I agree with what Linds said as well about natural selection. If you have tough, hardy, superior specimens, you may be doing them a FAVOR by inbreeding.... the strong produce more of the strong, kinda deal.
Bottom line - tough decision. If you find it works for you, great. If you don't get the results you should, outcross or stop breeding that pair entirely.
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- Ken LePage
http://www.invictusart.com
http://www.invictusexotics.com
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07-15-04, 05:00 PM
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#7
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Member
Join Date: Jan-2003
Location: Boston, MA
Posts: 240
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Inbreeding can't introduce anything new to the gene pool, it merely reinforces what's already there. In more intense cases of inbreeding (like when establishing a recessive trait) everything in the original animal's genes is essentially compounded exponentially. If there IS a negative trait inherent in the source animals, it WILL eventually surface, usually not until long after it's too late to contain (example being bug eyes in leucistic texas rats) but if there are no negative traits, you won't have any problems. No matter how many times you inbreed.
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-Seamus Haley
"Genes, Like Leibnitz's monads, have no windows; the higher properties of life are emergent... And once assembled, organisms have no windows." - Edward Wilson, Sociobiology
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07-16-04, 08:16 PM
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#8
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Veteran Member
Join Date: Oct-2002
Location: Calgary, Alberta
Age: 57
Posts: 4,080
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Good Points! Mark
__________________
Mark's GONE SNAKEE! working with select Colubrids (Corns, GB Kings, EIs) and Woma Pythons
All stock parasite free and established on F/T prey. No PMs please email at gonesnakee@shaw.ca
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07-18-04, 12:12 AM
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#9
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Member
Join Date: Sep-2003
Location: Southern Ontario
Posts: 318
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I'm not sure if this is a valid point, but...
Aren't all living things "related" if you go back far enough in time...?
Cheers,
Simon R. Sansom
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"PEARL - The best reason to play drums"
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06-04-10, 08:30 AM
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#10
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Moderator
Join Date: May-2008
Location: Central New York State
Age: 60
Posts: 16,534
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Re: inbreeding...
I found this old thread and thought it was still a valid discussion, so here it is.
I have a few snakes that I know for a fact are inbred, some as much as F5.
Even though there is money to be made, I will not breed my albinos without first out-crossing to prevent any further deterioration of the gene pool.
One set I have I tracked backward, the guy I got mine from purchased a pair of siblings and bred them, going back one more generation that pair was born to siblings.
So I won't breed the ones I have, since it is impossible to go back any further and find out if there is deeper inbreeding or not.
My albino red sided garters are very pretty, but have bug eyes that anyone can spot without even trying.
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"Where would we be without the agitators of the world attaching the electrodes
of knowledge to the nipples of ignorance?"
Savannahmonitor.net
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06-04-10, 08:51 AM
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#11
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Member
Join Date: Dec-2009
Location: Peterborough/Oshawa
Age: 33
Posts: 776
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Re: inbreeding...
ive always wondered if there were any implications to do with inbreeding snakes, is this what causes the head wobble and neurological problems for the most part in many morphs?
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Sean
“If I found in my own ranks that a certain number of guys wanted to cut my throat, I'd make sure that I cut their throats first.” - Pierre Elliott Trudeau
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06-04-10, 08:54 AM
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#12
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slainte mhath
Join Date: Nov-2009
Location: kelty,fife
Age: 58
Posts: 8,509
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Re: inbreeding...
imo the general accepted rule with carpet breeders is breeding up to f3 is acceptable.f4 an beyond is generally frowned upon.unless your line breeding for a specific result.this imo would be acceptable if there wasnt loads of hatchlings born mutated etc,etc.like you say wayne its really hard to go all the way back and check how many generations of siblings have been bred together.i wish there were more people like yourself.people who will oubreed rather than just fling the siblings together and think what the heck we'll get loads of cash for all the albino's we produce.i think this post is a very valid and interseting one indeed.
cheers shaun
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ALWAYS judge a person by the way they treat someone who can be of NO POSSIBLE USE TO THEM !
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06-04-10, 08:58 AM
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#13
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Moderator
Join Date: May-2008
Location: Central New York State
Age: 60
Posts: 16,534
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Re: inbreeding...
Quote:
Originally Posted by emseeKAY
ive always wondered if there were any implications to do with inbreeding snakes, is this what causes the head wobble and neurological problems for the most part in many morphs?
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If the inbreeding is many generations, I would wager yes.
Even though the morph is virtually guaranteed, so are any problems.
I have a double het snake with a deformity, I will never breed her, I don't want to produce a litter of deformed snows, not enough money to even tempt me.
__________________
"Where would we be without the agitators of the world attaching the electrodes
of knowledge to the nipples of ignorance?"
Savannahmonitor.net
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06-04-10, 10:42 AM
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#14
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slainte mhath
Join Date: Nov-2009
Location: kelty,fife
Age: 58
Posts: 8,509
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Re: inbreeding...
id say its pretty much the same over here with the jaguar gene mutation.theres a lot more jun/jags and coastal jags on the go with mild to severe head wobbles to full corkscrewing around their tank.i personally would not breeed any jag showing signs of a neuro issue.glad to say my jags wobble free.but he's been my most treated snake out of all ive kept.he keeps having re occuring ri's.yet all my other carpets dont.since the original jag gene come from a single hatchling bred back to the parent then imo the jag bloodline is way too inbred.
cheers shaun
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ALWAYS judge a person by the way they treat someone who can be of NO POSSIBLE USE TO THEM !
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06-04-10, 12:13 PM
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#15
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Member
Join Date: Dec-2009
Location: Peterborough/Oshawa
Age: 33
Posts: 776
Country:
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Re: inbreeding...
sorry for this stupid question, but what does f1,f2,f3,f4 mean? Is that the number of the generation?
__________________
Sean
“If I found in my own ranks that a certain number of guys wanted to cut my throat, I'd make sure that I cut their throats first.” - Pierre Elliott Trudeau
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