Calves : On December 12, 2009, the baby calf was introduced to Farmville. These are very profitable animals.
Types of Calves : There are four types of calves. There's the Alien calf, the regular calf, the pink calf, and the brown calf.
How to Get Calves : When a user puts a bull in their dairy farm, there is a 50% chance that it will mate with another cow and make a calf when harvested. Note that there is a limit of 1 bull per dairy farm.
In this farm, either a regular calf, pink calf, or a brown calf can be produced.
If the Farmer is very lucky enough to get a baby calf, they can post it to on wall for friends to adopt.The calf can be adopted by clicking on the picture of the calf or the "Adopt the _______ Calf!" post in the corner of the post. When a user has adopted a calf, no other users can adopt the same one. To place the calf on a farm, open the gift box, find the calf, and click use. Note that calfs cannot be placed in dairy farms.
Benefits : The calf takes one day to harvest for an incredible 80 coins and sells for a whopping 120 coins. It is the most profitable animal in the game, surpassing the recently released Golden Chicken. They will never grow up to be a cow or a bull.