One Dairy Cow produces 120 pounds (15 gallons) of manure each day. Over
one year's time, this could be a fertilizer resource worth $3,600 (100
animal units) or $36,000 (1000 animal units) for solid waste. For liquid
waste, over one year's time, $10,000 (100 animal units) or $100,000
(1000 animal units).