ITS A NEWCOMER BREED REGISTRY IN CBKC-BRAZIL THE OFFICIAL CLUB ....ITS A FCI SAME TYPE OF CLUB. SERRANOS IS A BREED SPLIT FROM CAMPEIRO. ACTUALLY THE BREED ARE THE SAME AND SOME OF THE BREEDERS CHANGE THE STANDARD TO FIT IN WORKING SO SERRANOS WILL BE THE CAMPEIRO WORKING DOGS. MOST OF SERRANOS LINES DERIVED FROM CAMPEIRO DIDNT HAVE ENGLISH BULLDOG ON THEM OF HAVE LESS (USED IN THE RESCUE OF THE BREED MANY YEARS AGO) AND HAVE BEEN BREED FOR WORKING SPECIALLY WITH CATTLE DRIVES -BULLBATING PLAY.