posted 10 years ago
Howdy Lizabeth,
I don't feed goats and sheep Comfrey in replace of grain, however, they do consume a large portion of comfrey (Symphytum × uplandicum hydrid and just Symphytum officinale ). Our pigs, ducks, and chickens also eat quite a lot of it too, especially the ducks.
That being said, I would not recommend comfrey as a primary ration for any animal. It has ill effects as a sole ration, primarily the deterioration of liver tissue. I would not recommend a sole ration of anything to any animal, it is simply unatural.
I would not go over 1/3 the volume of roughage for animal livestock. Comfrey is also not a nutritional replacement for grain. Grain is a hi-energy food, comfrey is a protein rich food.
A mix of alfalfa, grass, cut tree forages, comfrey/wild lettuce/lambsquarters, and sprouted grains is a what we have worked out. for our goats and sheep.
hope this helps you make your decisions. I am happy to answer more questions if you have them.