This is an interesting link .... it is good to think of 'what ifs'. My husband works for a local fire & rescue unit and they do major natural disaster drills quite frequently. These drills include personal/family contact info, etc., so we are frequently reminded that these situations are real and could happen. We live in the country, quite a remote location, really. Occasionally, we have family/friends remark on how much non-perishable food we have on hand. For us, there is only one road out, which has (upon occasion) been blocked by high water or fallen trees during a severe weather situation. There is a lot of non-perishable food that can be stored, and it seems prudent that we should all have some sort of stores on hand. We frequently lose electricity during severe weather events, so we prepare for that by having wood heat, a propane bbq, water storage, etc.
As for our animals/livestock, we purchase in bulk as much as we can. Partly because a trip to town is expensive for us (what with the price of fuel), but also because we could run into a period of time that a quick trip to town isn't possible/feasible/economical. I like to hear from others on how they store their feed (and the methods they use to extend the storage life).
We are lucky; we have 10 acres+ that could be used for a free-range environment, if needed. However, then we have to deal with the predator environment that we have planned so carefully to reduce/eliminate.
Thanks to everyone who has contributed to this thread; we look forward to other ideas for storage techniques and shelf life for feed & supplies for the brood.