Have four mixed heifers (1 char 1 angus hereford 1beefmaster 1limo) averageing about 325 lbs. How big do they need to be before i can breed them. And any suggestions on what i should breed them to would be greatly appreciated. Am thinking of using artificial insim rather than stud. Would like to keep any heifers that drop to increase heard size and possible any bull that drops if it looks good enough and sell its mother. Been raiseing feedlot calves for years, just starting on breeding. thanks in advance.