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.
Kg per cow during spring 21 apr 2015 cattle will normally consume 1. 5 2kg less grass dm than mature cows, reducing average daily grass demand by around 0. Per kilogram of dry matter' (mj me kg dm, or simply m d).