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gotpointers wrote: I am going to breed my direct HTA littermates
ultracarry wrote:codym wrote:I recently heard about a litter that was the result of an accidental breeding between litter mates. The results were not good with almost all having to be culled immediately. I have often wondered about this as line breeding is a synonym for inbreeding. I know the reason for line breeding and know it can produce great dogs, but how close is too close? When is the gene pool to shallow? I'm just looking for what most of you consider to be ethical.
Are you talking about dogs, because I herd they have been doing this in the south to make the family tree taller....
Ron R wrote:gotpointers wrote: I am going to breed my direct HTA littermates
You're crazy...How are thay bred on bottom?
RayGubernat wrote:Folks need to understand that canine genetics and human genetics are different. The additional chromosomes in the canine genome allow for much closer breedings, which are quite common and typical in pack animals.
RayG
tn red wrote:ultracarry wrote:codym wrote:I recently heard about a litter that was the result of an accidental breeding between litter mates. The results were not good with almost all having to be culled immediately. I have often wondered about this as line breeding is a synonym for inbreeding. I know the reason for line breeding and know it can produce great dogs, but how close is too close? When is the gene pool to shallow? I'm just looking for what most of you consider to be ethical.
Are you talking about dogs, because I herd they have been doing this in the south to make the family tree taller....
You care to elaborate more on this statement ? Im sure im taking it wrong.
BigShooter wrote:RayGubernat wrote:Folks need to understand that canine genetics and human genetics are different. The additional chromosomes in the canine genome allow for much closer breedings, which are quite common and typical in pack animals.
RayG
This could be a bit misleading, Parker et al. (2004) showed that humans and dogs have similar levels of overall nucleotide diversity, which represent the overall number of nucleotide substitutions per base/pair. It is true canines clearly demonstrate more diversity as evidenced by the variations in size, coats, etc.
cjhills wrote:Generally, in grey wolf packs a younger outside male runs off the old Alpha male and either takes up with the Alpha bitch or sometimes kills off the Alpha bitch and starts with a younger one. Sometimes the bitches kill off the old Alpha bitch and a new one takes the position. Also sometimes entire litters die for no explicable reason. When pack populations get low more than one female may have pups. But , inbreeding is quite strictly controlled by nature.
CJ
ElhewPointer wrote:http://erinkennels.com/pedigrees/30.pdf
This answers the question to me.
RayGubernat wrote:BigShooter wrote:RayGubernat wrote:Folks need to understand that canine genetics and human genetics are different. The additional chromosomes in the canine genome allow for much closer breedings, which are quite common and typical in pack animals.
RayG
This could be a bit misleading, Parker et al. (2004) showed that humans and dogs have similar levels of overall nucleotide diversity, which represent the overall number of nucleotide substitutions per base/pair. It is true canines clearly demonstrate more diversity as evidenced by the variations in size, coats, etc.
I am not a geneticist, so the relative significance of that particular piece of data is lost on me. In other words, I have no clue what you just said and have no idea if it has any significance in this context.
But I kinda think that there just might be several reasons why dogs evolved to have more chroomosomes than humans and have litters of (on average) 5-8, while people evolved to have (on average) one offspring at a time. One of those reasons(I think) just might be the likelihood of extremely close breeding that typically occurs in a pack environment with an alpha female and alpha male doing virtually all the breeding until they are replaced by a new alpha , which would typically be a son or daughter. In packs, this type of inbreeding occurs, generation after generation.
RayG
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