Puppy mills are high-volume commercial breeding operations where welfare standards are chronically inadequate. Understanding the puppy mill supply chain helps consumers make more informed decisions.
Puppy mills represent a systematic welfare failure where breeding dogs spend their entire lives in small wire cages, producing litter after litter without meaningful social contact, exercise, or enrichment. Breeding females experience repeated pregnancies until they are discarded when no longer productive. Puppies separated too early and transported under stress arrive at pet stores with compromised immune systems and behavioral foundations. The welfare harms are not limited to production — buyers of mill puppies often face years of behavioral and health challenges reflecting poor early development.