The rest of the pets, which were predominantly a standard dachshund breed, were taken to Ardmore Animal Shelter where they were later euthanised, KTEN reported. Reports indicated that the dogs' bodies were then sent to Ardmore Animal Shelter for cremation.
None had legs longer than an adult human hand or weighed more than 18kg.
The attack occurred on a rural road near the town of Ardmore, in the southern part of the state. Six of them were about a year old while a seventh - likely the mother - was three-years-old. Six of the dogs were a dachsund/terrier mix and she thought one was a border collie mix.
"A predominant breed in these dogs is definitely standard dachshund", technician Amanda Dinwiddie told KXII. All animals were heavily infested with fleas and ticks.
A report that one of the pit bulls was inaccurate, according to Carter County Sheriff Chris Bryant. "This is just a bad deal all the way around".
Dinwiddie said all the dogs had characteristics of a dachsund, such as their "knobby legs, knees, very short-legged dogs and their coats".
"We were cleaning ticks off ourselves all day", she told the station.
"Unfortunately, yes, we had to shoot one dog", Bryant told local news outlet Oklahoma News 4. Dinwiddie said it was apparent that the dogs have been living in the woods. However, KXII reported that vet hospital officials have decided that the dogs won't be tested.
The sheriff said he hopes to have the autopsy results and other relevant information ready for the district attorney's office by Tuesday morning.