That is probably one of the best ways as well. 3-in-ones from reputable breeder. mamas that are sound and easy to handle will teach you a lot of what there is to know about cattle. herd dispersals are also good sales to find cows that aren't necessarily culls. If you know someone who knows cattle, and you don't--enlist them, beg them, pay them for some help in chosing your stock (if you don't know cattle). Buy QUALITY not QUANTITY--there's all kinds of this breed and that breed to be had, but in the long run--you'll be better off to buy the best you can afford over the most you can get for your $.