Today I found some old notes I made up for my Production Red flock I used to have so I thought I would post them. Hopefully someone can find these useful. Feel free to add things and/or change any mistakes I may have made. What to look for when breeding. Overall: This very first one is very important and I feel stupid listing it because it is so basic but: Lack of vigor, health, and fertility should be culled. Female size controls adult size of offspring. Pullets that begin to lay at 6 months are typically healthier and more productive than those that start to lay at 8 or 9 months. Look for long, deep, and broad bodied cocks with large, smooth combs. Large comb size indicates good egg production. Look for large feet with thick shanks. This is a sign of vigor and good health. Law of Ten. Keep only most productive offspring to breed for future stock. Look for fertility in old age to increase fertility in flock. Also, breeding from hens that are at least 2 years old with increase longevity. Breed hens that lay before 10 a.m. This is a sign of good health and very good productivity. Laying: Look for large moist vent. Look for hens with very quick molts that seem to drop feathers all at once and grow feathers back quickly. Also you want your hens to molt around September or October. Width between legs. With all that said, the one thing that I consider to be most important is keeping VERY DETAILED production records. I would only breed to the hens who were my very best layers. Hope this can come in handy for someone. Like I said, feel free to add to this and make changes to any mistakes I made.