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.
A general rule is 30-40 pounds of hay per day, per cow. (And again, that number can vary greatly). In our area (depending on the year) hay goes for around $150-$200 per ton (2000 pounds).t depends on the cow and location, but dairy cows generally sell for $900-$3000 in our part of the country. The proven family cows cost more, while a first-calf heifer will cost less.