I have 25 chickens and 2 ducks. I have been feeding Flock Raiser to 20 of the chickens and the ducks, but I feel that I am waisting alot of food. A 50lb bag last those guys about 2 weeks. I do add in grass, fruits and veggies but am I offering to much feed. I dont want to be a bad mom and not offer enough feed but feel I am at the feed store all the time! Help would be appreciated!