Licking County Humane Society Executive Director Lori Carlson said the animals were stacked “bottom to top” in the van when it was discovered in the parking lot of a hotel in Hebron, east of Columbus, on Saturday afternoon.
Carlson said the dogs, some just a few weeks old, had coats covered with feces and urine.
The driver said he was taking 50 dogs and 12 puppies to an animal rescue in New Jersey. They were taken to animal shelters.
Authorities said the drivers were hired by the breeder. The county prosecutor’s office will consider charges in the case.