To understand, one must first go back thousands of years to Phoenician times, when black-hooved pigs (another name for the breed is pata negra, or black hoof) were introduced to an oak-grove ecosystem in southwestern Spain known as the dehesa.
It is a division of Bio Pet Vet Lab, which first introduced DNA testing as a way for adopters or dog rescuers to establish the lineage and breed components of their dogs through DNA testing.