It is a great way to feed animals but I found that is gets to pretty difficult to find a good place to grow large amounts due to how much room it takes up and the environment it needs to be in.
I tried it in the house at first and it was working great (other than the fruit flies) for a while until the weather started to really cold and we had the house warmer than usual... Then came the mold! When you have a ton of fruit flies in your room it tends to get very annoying! So I thought that I would try putting then inside of a hoop house with hot horse manure on the bottom creating what they call a hot house and it seemed to work for a bit until I cut one up for the rabbits that was in there for about 2 weeks and there was a TON of mold! So, although the rabbits really liked it I have finally given up the hopes for greens ALL throughout the year.
Thank God things are growing back or I would have some really unhappy bunnies on my hands! :)