Breeding systems are useful tools. They are a guideline , particularly for novice breeders, to get started. The problem comes from not having a very clear picture in the breeder's mind of exactly what they are trying to produce. I cannot tell you how many breeders I have known who have kept critters who bear no resemblance to that ideal, but are some rich and famous chicken's, horse's, dog's, cat's,or goat's brother. The odd ball critter stays in the breeding program even though it bears no resemblance to the ideal. The closer you breed to tighten up your genotype, the harder you must cull !This is the hardest thing for me. I wrestle with it everyday. The hardest thing or me is to see the value of crossbred stock. Am a huge fan of breeding systems. Not necessarily because I would use that plan, but because they show the general and specific principals behind concentrating virtue in a line or strain. Yet when many of breeders are using these systems, they are doing it with a single breed or variety of creature. Once I can get past this mental roadblock, I think I will be a better poultry breeder.
Best,
Karen
Bellwether Collies ( 1995 -2009 , retired)
Poultry since 2009.