I would recommend feeding a premix ration other than your own. Companies like Purina, Cargill, etc do way more research than any of can afford to. Also, there results don't lie.
http://www.betteranimalsshowseries.com/winners_list.php?atype=cattle<ype=national
http://www.betteranimalsshowseries.com/winners_list.php?atype=cattle<ype=national
