Whether putting food in the refrigerator, the freezer, or the cupboard, you have plenty of opportunities to prevent foodborne illnesses. One of the basics of food safety is cooking food to its proper temperature.
I personaly always figured around 25lbs of hay per day for a average size cow when i was putting up hay. Alot of that of course they can get if pasture is available/accessable. Multiply that by your number of cows x average days you actually have to feed.
Typically, a beef animal will consume three percent of its weight in dry matter. So for 1,000 pound beef cow that is 30 lbs. of dry matter a day. On average, dry hay is 88% dry matter, which means that the beef cow needs 34 lbs. of baled hay as fed per day to meet her intake. If we look at feeding our cow herd winter feed October through March, which would be about 180 days, each cow will consume about 3.06 tons of hay during that time period.