Inbreeding, line breeding

What are your thoughts. You don't need to be a breeder to comment...... Just what are your thoughts

Based on genetics, based on medical knowledge or simply just an opinion.

When you might inbree

Instead of starting another topic...thought I'd piggy-back off this one, since it's along the same lines. I was on a pedigree forum, and the topic came up...Breeding Mom to Son. It was predominantly GSD people, but thought I'd poke my nose in, and read some of the responses. Holy shit...was I surprised. Most were completely against it, saying to run away....far away from a breeder who produced pups using this mixology. However, some, said, basically "ok...well, if the line can handle it, then fine", and "there must be a really good justification for doing this". Since I'm complete dumb when it comes to this topic, can someone shed some light on how this can be justified? I've always been led to believe, that this is a major offence in the dog breeding world.

Sorry it took me a couple of months to respond, but I had to really think about this. One because I'm not a breeder but know of some breeders who do line breed (ie. aunt with nephew, uncle with neice). But I don't know of any who have bred with mother and son, father with daughter, brother and sister.

If someone is an experienced breeder, REALLY knows their lines well and has a very good reason as to why they are line breeding / inbreeding. To me the only good reason I can see is that the lines are known to score high in conformation or working venues. If you walk into a show ring or working ring and you hear the dog's show name, you know you will not have a chance in heck of winning. A breeder who does it because they want to skip out on paying stud fees to use another stud, have not proven anything with their dogs but wants to do a line breeding / inbreeding, I would be against it in that situation.

Sorry guys....

First off.. the more genectics courses I study.. the more I am so against this..

The thoughts behind this-- is when doing this- you will enhance a certain phentype genectic trait.. or a desired trait in that generation. HOWEVER, which is very important.. You will also magnify and inhence genetic genes at the same time.

Oh I love how people say you need to know all the genectics of said animal.. and then it is okay.. IMPOSSIBLE to KNOW all genes in human or animal.
ALSO I will argue to I am blue in the face.. you may think you know your lines in and out. And you may Know alot. .but when talking about genes and mutations and chromosomal defects and how they arise. YOU DO NOT.
When crossing you have more chance of having more problems.. Maybe not in the offspring of the mating.. but down the line. THIS IS not the thing to do.

Mini wrote:

Sorry guys....

First off.. the more genectics courses I study.. the more I am so against this..

The thoughts behind this-- is when doing this- you will enhance a certain phentype genectic trait.. or a desired trait in that generation. HOWEVER, which is very important.. You will also magnify and inhence genetic genes at the same time.

Oh I love how people say you need to know all the genectics of said animal.. and then it is okay.. IMPOSSIBLE to KNOW all genes in human or animal.
ALSO I will argue to I am blue in the face.. you may think you know your lines in and out. And you may Know alot. .but when talking about genes and mutations and chromosomal defects and how they arise. YOU DO NOT.
When crossing you have more chance of having more problems.. Maybe not in the offspring of the mating.. but down the line. THIS IS not the thing to do.

My apologies for late reply to my Q. I think your response Mini, is solid. I would have to agree with everything you've stated above.