This year, Iowa and Nebraska have both ranked in the nation's top 10 problematic puppy mills, according the Humane Society of the United States Horrible Hundred list .
Topping the list of the Horrible Hundred for the sixth year in a row is Missouri with the largest number of issue puppy mills.
Iowa ranks as third. Nebraska tied New York for sixth.
The report details a kennel in Ackworth, Iowa , where, "dogs had live maggots crawling in their food; dog’s feet were falling through gridded flooring; licensee received prior official warning from the USDA."
In Cincinatti, Iowa , USDA documents show, a kennel had a "Yorkie had foot swollen to twice its normal size; puppy had swollen eyelids with yellow discharge; bichon had open wound on her neck."
Documents show a breeder in Fort Calhoun who, "failed state inspection after inspector found rodent and insect infestations; feces not cleaned for five to seven days; dogs were only given fresh water “about twice a week.”
In Newport, Neb ., the report says, inspectors at one breeding facility found "one puppy had a leg torn off, according to state report; owner euthanized 14 unwanted dogs and puppies, refusing offer to send them to rescues; some were euthanized only because of burrs stuck in their fur."
The organization says there are as many as 10,000 puppy mills in the U.S. and about a third of breeders listed in the Humane Society's report are "repeat offenders."