Me, being me, went ahead and got the silly cow even though I already have at least two of each item on offer this month. Players like me are clearly who they're hoping to snare with this new system, lol! I can admit that I went ahead and got it on the off chance that it would drop energy like most of the other monthly animals.
So you can imagine my dismay to find out that the cow has a 1 Hour timer and has dropped standard cow stuff thus far including milk, hide, fertilizer and prime cut. Booo! What a waste of my time.