Inbreeding Guiena Pigs

[Chinchi]

Quote: Originally Posted by LuvMeBre I've heard that inbreeding Guiena Pigs will make them retarded just like human brother + sister that...

Where did you get this?
Because this is not true at all...

But most rodents will be okay, if you inbreed about 20 generations. But thats mostly mice, rats, and other fast breeding rodents.
There is a longer explanation behind this, but it will take me like forever to explain, because I'm not all that good at english...

But you should rather put together sister and brother, than parent ans son/daughter, because of the... ehm... Do you call it gene pool? (And this is why I would have problems explaining in english!)

I do not like inbreeding. I do not think of is as a responsible way of breeding.
I belive you should always try to get new blod into the line... You could call it "outbreeding" I guess.

In the nature, most animals will inbreed sometimes, but not all the time, and most certanly not to find any flaws withing the line. I know most our pet animals are tame, and can not be compared with wild animals. But I think it's stupid to inbreed nowadays. People used to inbreed to get new mutations, but why do this now? We should be happy about the animals we'v got now, and not try to do anything to them, to get new colours or what ever.

I only get the idea of inbreeding, if your trying to save some animal species...
Some other times I guess it can be okay too. Like apes (think you call them squrril monkeys). We are may keep them, but we may not import any new monkeys to Denmark, and one of the 3 species of monkeys that are kept private in Denmark, there's only about 10 or something like that, of one of the species...

[Kendalle]

normally genetic problems don't serface for a few generations in several animals, including people, brothers and sisters can have perfectly normal healthy babies. It's just frowned upon and most find it groddy. i agree. but anyway... people accidently have imbred animals often and they are ok, most of the time.. its just a better chance of problems.


Line breding and inbreding are almost totally different. we line breed our sheep sometimes.

basics of line breeding are male(1) bred to the females... they have kids. those kids are bred to a new male(2) they have babies that are bred to a new males (3) & (4) those babies are bred to new males (5) & (6) that are then bred to 7 & 8 and those to 9 & 10 So all the babies have lines of 1 and 2 but not of 3,4,5,6.7,8,9 but maybe you saved a male from 3,5,7 and 9 lines and you breed them to females of 4,6,8, and 10 keeping the good lines but not really inbreding... This isn't done with as many always but not directly inbred. It's not good for farmers for live stock to be inbred (mom & dad have boy and girl girl mates with dad or brother or boy with mom or sister) It increases issues and no one wants it you don't make money..

I hope that all makes sence. Farmers line breed for several reasons... Maybe a male has higher tendencies of having 3 babies instead of 1 or 2. or Large babies.. or stalky.. or better mothers.

[Jennicat]

Human inbreeding sister to brother carries with it a 2-4% (IIRC) higher risk of having children with severe problems like Down Syndrome, etc.

[Skratikans]

yes, and still....down syndrome significantly increases as the woman ages...the risk really goes up there past 30 yrs...so inbreeding isnt just that...in this example anyway

[candyraver]

Quote: Originally Posted by Chinchi I do not like inbreeding. I do not think of is as a responsible way of breeding. I belive you should always try to get new blod into the line... You could call it "outbreeding" I guess. In the nature, most animals will inbreed sometimes, but not all the time, and most certanly not to find any flaws withing the line. I know most our pet animals are tame, and can not be compared with wild animals. But I think it's stupid to inbreed nowadays. People used to inbreed to get new mutations, but why do this now? We should be happy about the animals we'v got now, and not try to do anything to them, to get new colours or what ever. I only get the idea of inbreeding, if your trying to save some animal species... Some other times I guess it can be okay too. Like apes (think you call them squrril monkeys). We are may keep them, but we may not import any new monkeys to Denmark, and one of the 3 species of monkeys that are kept private in Denmark, there's only about 10 or something like that, of one of the species...

I feel that way ^.
But I honestly know nothing about breeding guinea pigs to answer what will happen to the young.

[Jennicat]

Quote: Originally Posted by Skratikans yes, and still....down syndrome significantly increases as the woman ages...the risk really goes up there past 30 yrs...so inbreeding isnt just that...in this example anyway

Definitely, sorry, wasn't suggested that inbreeding was the only way that problems like that happened, just that they added a risk, like many other things, including age, diet, etc.