A week or so ago, FarmVille introduced Dairy Farms, which let busy farmers milk 20 cows at once. At the time, the powers behind the game promised that those cow factories were just the beginning of utilitarian buildings in the game.
They made good on that promise because starting today, FarmVille includes new Chicken Coops, which will allow you to collect eggs from 20 hens as once. The new Chicken Coops can be received as a gift or purchased from the FarmVille Market for 5,000 coins. The Coops can be harvested on one day and sold for 250 coins. Note: you're only allowed one Chicken Coop on your farm at once; if you receive more than one, the additional Coops will magically transform into chickens once placed on the farm.
Once you buy a Chicken Coop, you'll occasionally find mystery eggs that you can share with your FarmVille buddies. More on that here. Keep farming that chicken!