Yes, cow fighting is a thing in Switzerland. Kelly DiNardo writes:
The ever-louder jangling of cowbells signalled the fighting would soon start and we hurried to get a good spot along the fence that formed the competition ring. The bigger matches take place in an arena with seats, but for this smaller local fight a make-shift ring had been created on a semi-flat area of the mountain.
The cows, marked with large white numbers scrawled on their sides, paraded, single-file into the ring with their owners. Heaving, snorting, slobbering, a few hundred cows stood along the inside edge of the fence, waiting to be unleashed.