I hate to think about all of the obstacles in front of such an endeavor. All of the testing...of the cows and the manure and the farm. I assume that your herd is totally drug free and many consumers will want manure that does not contain manure loaded with GMO corn and soy products.

I'd think it would be very hard to accomplish what you need to and have it packaged to sell for a price that could compete with Black Kow, the bagged manure already on the market and on shelves everywhere.

I don't know many consumers who would insist that manure be from drug-free and GMO-feed-free cows. I suppose there is a segment of consumers, but I don't think it's at the top of your list of issues.

You'll need turning, sifting and bagging equipment, shipping, and customers. Where are you going to sell the product? Wholesale or retail? Who are your competitors? Will you sell it in bulk as well as bagged? If so will you deliver or sell bulk only onsite? What state and local permits will you need for a commercial composting operation?

Obviously some people are doing it so it's not impossible, but there are a lot of things to consider.