Mr. Marcus McCabe:

That would be done by cutting the tops off and making silage out of it. That would be the simplest thing because you would get the leaf and the seed together and then make silage out of it. That would be great fodder for a dairy farmer, for example and you would still have the straw as well. To be honest, however, the tops are probably too valuable to be used as an animal feed at the moment. If the processing was taking place, the tops would go into the human food chain.