Anyone else had trouble breeding son back to mama? Made a cross like this a few years ago. Pups met all expectations in regard to hunting, but had one with a terrible immune system that got sick and died at about 15 months and two others in the litter that were just poor-doers (fed well and had wormer running out of their ears but always looked underweight and had rough hair coats). I've been told that a mother-son cross is harder on the gene pool than a father-daughter cross, aka more likely to have unwanted effects.
cant say ive done son to mom, but have done several daughter to father no problem, dogs lived long healthy life. That said there is a difference in F1 vs F2,3... crosses going this tight. Culling hard in F1 crosses that tight is normal but needed much less F2 out. Basically at the first tight cross all the good and bad rise to the surface and once you cull that out the good is much more concentrated making for significant less culling. Lots of easy to understand books on this in the Lab world, I really like Dr Long from Texas A&M's research articles on line breeding, plus hes been doing it with BMC's not labs but same concept
Dr. Long is a personal friend of one of my very best and dearest friends, and he has sent him several dogs over the years, can you post the links to some of the articles you've read and share them with us...
