We bought an new Angus Bull last Feb. , when we only had 33 head of cattle. This year we have doubled the herd and that was with bred heifers. Now we are in full calving and need to add another bull. Can we run 2 bulls together with this many cows in the same area or will they fight ? That puts us up at 72 head of females with the heifers we held back this last year. Thanks for any info.