Commercial turkeys have been selectively bred to grow so fast they cannot reproduce naturally and suffer chronic health problems. Understanding turkey welfare reveals the cost of production-driven breeding.
The commercial turkey is perhaps the clearest example of how selection for production traits can create animals whose very existence involves chronic suffering. Rapid skeletal growth causes leg deformities that make normal locomotion painful; excess breast mass shifts the center of gravity forward, causing chronic postural stress. Mortality from cardiovascular failure (aortic rupture) is significant in older birds approaching slaughter weight. Crowded housing conditions trigger aggressive pecking, necessitating beak trimming — itself a painful procedure. These welfare problems are structural: they are built into the genetics of the bird and cannot be resolved through husbandry improvements alone without returning to slower-growing breeds.