Breeding goes hand in hand with evaluating your herd. I think there is too much voodoo written about line breeding and inbreeding. Stop thinking of breeding in human terms! Line breeding and inbreeding is very important and is done in most herds that are successfully shown, those with excellent udders, very good milk production and just general good conformation.
True that this magnifies both the bad and the good in your herd but if you have a good foundation then it is my opinion that line breeding is the only way you will continue to produce those fine animals. This is done by many breeders of all other breeds. Since the Kinder is specifically from two major breeds it is of the up most importance to do everything possible to pass these good genes on down the generation lines of the Kinder goat.
I almost shudder any more when I hear a Kinder breeder say, “Oh, I have just got to get new blood in my herd, I need something entirely unrelated to my other goats”. I have seen Kinder herds go from a top notch herd, to much lesser than in a hurry, when just adding one new herd sire.
If you have a herd that has general good conformation, that are milking well anything from 4 pounds up per day and if those animals are truly dual purpose showing a good meat carcass, then why do you want to change that? If you have sold animals to other breeders then go buy something from their lines that also has your lines in it. In this way you will be adding back some of your own genetics. If you completely cross out of your line it is hard telling what you might get. Genetics is a wild and wonderful world and we as Kinder breeders by breeding 50/50 are trying to fool mother nature into producing a goat that will continue to produces animals that conforms to our breed standards