in america the dogo is cropped to stop boars from ripping the ear off ive seen a dogo with the ear and surrounding fur ripped off so on a boar dog it is prefered the boar made a right mess of the dogos ear
i only ever have two dogs together at anytime its bad enough when my bitch gets agitated and trys to attack my male it dont happen often but with bull breeds they react quickly if you dont know what your doing youd have all sorts of problems