Moozipan
From PinataIsland.info, the Viva Piñata wiki
Statistics
Animal: Cow
Candy: Marzipan
Likes: Buttercup, Daisy, Grass
Provides: Milk
Attack: ???
Disposition: Peaceful, Friendly
Eats: Flowers
I've seen more than one flower bed reduced to a sad state by these docile bovines. Of course, anyone looking for a reliable supply of calcium goodness has little choice - there don't seem to be regular milk deliveries to Piñata Island...