Use to have lots of problems with bloat, would lost one or two a year feeding show an sale cattle . One of Mana-Pro rep sent a ration an I used it but they had a 1.5 lb of Mana- E to a ton an didn't use it because I didn't think it would do any good with that small amount. Lost another critter shortly after that an decided I better get some Mana-E an have been using it in every ton of feed fed for show cattle.... Never have a bloat or any problems ,but also believe that free choice of good prarie hay is a must , one of my friends was having trouble with fat steer an got him some good hay an fed him some an stopped his bloat ... Hope this helps but these are a couple things that have sure helped nme....They say those people that feed the carloads for Denver usually lose one or two a year getting them ready ...