Linebreeding / Inbreeding / Tight Breeding or whatever you choose to call it NEVER CAUSES such things as pink noses, bobbed tails, rear dew claws or anything like that. BUT...by breeding tight you are essentially narrowing the gene pool which will result in recessive traits (already present in the dogs) becoming more common in the phenotype of the progeny.
You can cull for a specific trait and over time have that particular trait evident in all offspring, however that does not change the fact that the trait is either dominant or recessive.
I have formed an opinion about extreme breeding like the english bull dog or a real tight bred family of dogs for a particular trait or traits. Quite a bit of these traits usually are recessive because they are not what you call the norm because they have to be bred and selected for that purpose. This is why when bred to another breed or strain that is not tight bred for those traits that you lose quite a bit of those traits because other dominant traits will pop up.I am not saying this is fact just how I have understood or percieved when it comes to breeding dogs.
I have read enough about genetics to get confused...
;Dso I try to keep it simple. Stay within a breed and strain that is somewhat tight bred and breed for perfomance and function first and let color be further down the list.
It seems to me that once the traits are set to keep them that way we have to breed within that strain or breed or all can be lost if it is a small family of dogs. A good example would be by breeding a redbone hound with a blue brindle plott hound. The redbone comes in red, maybe different shades of red but red. After it is crossed with the plott...what color would the pups be???
I have seen quite a few red or liver colored cat curs with pink or liver colored noses as well as red dobermans.
I bred a real tight line of mtn curs and never bred for chocolate and I got 2 pups that were chocolate about 15 years apart...they had the liver or pink nose.
It is possible that when we see a black nose that it is really a dark dark pink nose even though it looks black to the average person but when it comes to genetics it is a pink nose.
I do know that a dog can appear to have a long tail but it can be missing one vertabrae and so it is really a bob tailed dog when we are talking about genetics...
