FarmVille Baby Animal Playpen guide

FarmVille released the Baby Animal Playpen to players on Tuesday afternoon. The feature is currently on a slow release, so if you don’t see it on your farm just yet, please be patient - you will have it soon.
The Baby Animal Playpen is a new storage building for your baby animals. You can place calves, foals, and several other baby animals inside of it once constructed. This building will not grow your babies up; it is simply a storage building for them. You can collect from it daily for Farm Coins, and you also have a chance of producing a baby from it that you can share with friends. The baby will be one of the animals you’ve already got inside.
When the building is fully upgraded, you can place up to 40 baby animals inside of it.
Once the feature is available to you, you will immediately go into placement mode on your farm. The Baby Animal Playpen takes up the same amount of room as other animal pens such as the Pet Run.

As with any constructable building, you’re going to need to collect some parts for it. For the first level, you will need to gather 10 Baby Blanket, 10 Salt Licks and 10 Brushes from friends. You can get these parts as free gifts, you can find them on your Facebook game feed, or you can purchase them with Farm Cash. At this time, Special Delivery Boxes are not giving out these parts.
With the release of this new building, we’ve also noticed the Nursery Barn is no longer available to purchase. If you’ve still got one on your farm and want to keep it, you’ll be able to, but you can no longer build any new ones.
One player in the Zynga Community Forums pointed out that this could be a profitable building if you place the right animals in it – filling it with Winged Unicorns Foals and Harvest Foals will net you 125K a day in Farm Coins. Remember, Baby Animals can now be mastered, so this is a good opportunity to get things rolling for those coveted signs.