Question: how much hay will a cow eat in the winter?
Answer: ASSESS HAY NEEDS Allow about 25 to 30 pounds of hay per cow unit. Count each 1000 pounds of cattle as a "unit," or count each cow as a unit, each calf as about one-half unit and each bull as 2 units. Decide how many days you will be feeding hay (120 to 150 days would be typical).