A responsible breeder is one that loves their breed and is committed to producing happy, healthy dogs with quality temperaments. Features of good breeder might include the following:
Does the breeder ask you a lot of questions about you, your family and how this puppy will fit into your lifestyle? Be very suspicious if they do not show concern over the well-being of their puppies.
Make sure the breeder has, or is willing to carry out all the relevant tests for hereditary problems.
Make sure the breeder allows you to see the puppies with their mother. Also, if possible, ask to meet the father, and other family members – this will help you assess the temperament and personality of the blood line.
Make sure the breeder’s facilities are clean and comfortable for the puppies. Notice whether they are isolated from human contact, or being reared in close contact with the breeder’s family or regular carers.
Is the breeder willing to accept the return of the puppy if its first veterinary visit reveals undisclosed health issues.
Does the breed have a Kennel Club Registration Certificate, or are they willing to forward it to you once it is received from the Kennel Club? Keep in mind that a pedigree document may not be the legal proof of registration and ownership you want and need.