Thinking of putting some weight on a cull cow and selling her and a beefy bull I have as hamburger. I have had success at selling a few sides of grass fed beef and the auction price for the animals is about .50/lb liveweight. What can I expect for flavor and quality if I grind the whole animal? Not opposed to giving corn to the cow as I could sell her meat as naturally raised. What percent of liveweight could I expect? Thanks in advance. Any other thoughts on marketing cull animals appreciated.