My wife milks cows at a small organic farm near us twice a week. It's on a share system where at the end of the year they add up what the total cost to care for the cows and devide that by the gallons of milk produced to come up with a per gallon cost. She makes yougurt, kiefer, cheese, butter, cottage cheese to name a few and we get the raw milk and cream. They use DE as their dewormer when needed and no antibiotics. The best part of this deal for me, besides the killer cheeses, is she brings home about two wheel barrels of a mixture of cow manure, alfalfa and hay each time she milks. I mixed that all up with lots of leaves and compost it. This compost comprises half of the humus portion in my mix. The other half is from my worm castings. Makes a great canna soil!