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.
How Much Feed Will My Cow Eat - Frequently Asked Questions. Cows will consume between 1.8% and 2% of their body weight on a dry basis of a low quality feed. Cows will consume between 2.0% and 2.2% of their body weight on a dry basis of an average quality feed.