If you are looking for a Farming Simulator game where you can raise cows, you might be thinking of a later installment like Farming Simulator 17, 19, or 22. In those games, you can:
* Buy cows: Purchase cows from the market and place them in your barn.
* Feed them: Use various types of feed, like hay, silage, and grain, to keep your cows healthy and producing milk.
* Milk them: Use a milking machine to collect the milk your cows produce.
* Sell the milk: Sell the collected milk to make a profit.
If you're playing Farming Simulator 2011, you can still enjoy the game with other features like planting and harvesting crops, raising sheep and chickens, and managing your farm.