Broiler breeder chickens experience chronic hunger from feed restriction programs that create one of the most severe welfare harms in commercial poultry.
Broiler breeder feed restriction is among the most ethically troubling routine practices in commercial poultry because it deliberately creates chronic hunger in animals whose genetic potential for food consumption far exceeds what their reproductive health can accommodate. The welfare science is unambiguous: feed-restricted broiler breeders experience genuine hunger as evidenced by their extreme motivation to seek food in behavioral tests, their stereotypic vacuum feeding behaviors, and the physiological indicators of food deprivation. Unlike feed restriction in other contexts, this hunger is structural and unrelenting, occurring daily throughout the breeding life of the animal. The solution exists in breeding: developing slower-growing lines that can reproduce without feed restriction eliminates the welfare problem entirely. Some genetics companies have developed and commercially released alternative broiler breeder lines specifically to reduce feed restriction welfare harm, and industry adoption of these alternatives represents the most impactful welfare improvement available.