Broiler parent birds are feed-restricted throughout their lives to prevent the metabolic diseases that affect their fast-growing offspring. This creates chronic hunger that is one of the most significant welfare issues in commercial poultry.
Broiler breeder feed restriction is widely considered one of the most ethically problematic practices in commercial animal production because it creates chronic, unrelenting hunger in fully sentient birds throughout their productive lives. Controlled studies demonstrate that feed-restricted breeders given choice repeatedly seek additional food beyond their ration, confirming that hunger motivation remains chronically unsatisfied. The welfare harm is not incidental to production - it is fundamental to the genetic architecture of broiler production: selecting for rapid growth in progeny creates birds whose parents cannot be fed ad libitum without welfare and reproductive consequences. The ethical solution requires changing the underlying genetics through adoption of slower-growing breeds, which is occurring slowly through the European Broiler Ask commitments but remains far from universal. Industry acknowledgement of the problem has grown but concrete action remains limited.