A puppy mill or puppy farm is a large dog breeding facility created to mass produce puppies for profit.
Likened to battery hens, the breeding dogs are kept in cages or pens for their entire life with the sole purpose of producing puppies for the pet shop, internet and overseas markets.
Pet shops require a constant supply of cute, young puppies and individual shops can take more than 20 a week. Multiply that by the number of pet shops found in shopping centres throughout America, China, Australia and other countries and you have the perfect distribution network for an industry producing hundreds of puppies with little concern paid to quality, health or temperament.
In Australia these farms have anything from 20 to 1000 breeding females who are kept constantly pregnant or lactating in order to keep up with demand. The health, behaviour and temperament problems found in puppies from puppy mills are well documented and for each cute, fluffy litter of puppies seen in a pet shop window their mother is likely to be suffering the fate of a puppy mill dog.
Puppies from puppy farms often have severe genetic disorders. They are sometimes impossible to housebreak. They are sometimes impossible to train. They are often aggressive, shy, anti-social and have severe behavioural problems.