Induced molting in laying hens is used to extend productive life but involves food withdrawal that causes significant physiological and behavioral stress to the birds.
Induced molting by food withdrawal is one of the more extreme welfare compromises routinely applied in commercial egg production. Hens subjected to 5-14 days of complete food deprivation experience intense, prolonged hunger alongside physiological stress equivalent to severe fasting. The behavioral response — frenzied food-searching and increased aggression — demonstrates the acuteness of their suffering. Low-nutrition alternative feeds achieve the same productive outcomes without starvation. The continued use of food withdrawal molting in the US represents a significant, preventable welfare harm that could be eliminated through targeted regulation.