For example, Smart Farmer Kenya states that the standard conventional two-string hay bale should measure 90 cm x 45 cm x 35 cm and weigh a minimum of 15 kilograms (18–22 kgs optimal conditions).

This also assumes the cows consume 2.5% of their body weight per day on a dry matter basis, and each bale of hay weighs 1,000 pounds and is 15% moisture. Every storage method will have some hay loss.

Using current nutrient values, hay has a fertilizer value of $25.30 per dry ton. Assuming a 1200lb round bale is 15% moisture, the nutrient value per bale is $12.91. If you are figuring what it ...