We are preparing our home for any future catastrophe. We're prepared for the humans but I don't know exactly how to prepare to care for my three chickens. I called the local feed store and they told me that feed will only keep for 3-4 months. Is there some product out there that can be vacuum sealed and stored for emergencies? Also, if I were to grow their food. What type of things should I plant? Thank you for any advice you may have for me!