In Holland the dairy farmers project Home Made Protein shows that feeding cows more than 25 kilogram concentrates per 100 kilogram produced milk is less profitable. This because feeding more concentrates displaces the protein produced on the farm. The project also shows that the feed balance, which is the difference between feed costs and milk yields, does not standard increase with a higher milk production. When the feed balance is expressed per 100 kilograms of standard milk there is no relationship between milk production and the feed balance.