Yes, which is a shame, because they could do a lot better if they took the time to have someone knowledgeable evaluate their stock and kept better birds for breeding. Just by carefully selecting sires and dams you can have a big impact within a few generations. Think of what they have done with Holstein dairy cows - years a go a great cow produced 40# milk a day. After the widespread use of Artificial Insemination, a great cow on any farm now produced over 100# of milk a day - simply by being able to select excellent sires, and without the need to keep dangerous bulls on the farm.