The hidden welfare crisis in broiler breeder flocks, where parent birds are feed-restricted to prevent health problems caused by their own genetic makeup.
Broiler parent flock welfare represents one of the most ethically troubling problems in modern animal agriculture. These birds carry genetics selected for extreme growth rates, but if allowed to eat freely they develop severe leg problems, cardiovascular disease, and reproductive failure. The industry solution - chronically restricting their feed intake - creates profound hunger and frustration. Research consistently demonstrates that restricted birds are in a state of chronic negative affect. Addressing this requires changes at the genetic level, selecting breeding lines that don't require restriction to remain healthy and fertile.