I may be able to get a couple hundred pounds of feed, but I was wondering how long it would last. They would be in a the sealed bag that they come in, then put into a plastic trash can in my shed. The place I can get them is $19 for a 100 pounds, which I am right now paying $16 for 50 pounds. It is kinda far, so I don't want to have to make the trip more times that I have to. Will chicken feed last up to 6 months? Or is it only good for 2 months? Or maybe just 1?