Commercial turkeys have been so intensively bred for growth that many cannot reproduce naturally or support their own body weight, creating endemic welfare problems.
Commercial turkey breeding represents an extreme case of production-welfare conflict where selective pressure has created animals physically incapable of natural reproduction. This goes beyond husbandry welfare problems into fundamental biological compromise at the level of basic physical function. The welfare problems cascade: extreme muscle development causes cardiovascular strain, skeletal problems, and reduced mobility; dense indoor housing without enrichment causes behavioural frustration leading to injurious pecking requiring beak trimming as a symptom management rather than a solution. Heritage breeds demonstrate that production turkeys need not be biologically compromised, but market economics strongly favour fast-growing commercial breeds.