Puppy Mill Dogs Available for Adoption August 25, 2011 Chihuahuas, Shih Tzus, Maltese, Dachshunds, Westies and Poodles are among the many breeds of dogs recently rescued by the Humane Society of Missouri from substandard puppy mills and now available for adoption. The dogs were rescued by HSMO’s Animal Cruelty Task Force in cooperation with the Missouri Department of Agriculture and the Office of the Missouri Attorney General.