Canneloni beans are grown for human consumption; often used in baked beans and such. Like a navy bean. Not as much protein as say soybeans, but a perfectly okay bean to feed. I have grown them and used them in the chicken feed before. So I would say mixing some in a cattle ration should not be a big deal. Ask at your feed mill sometime and see if they would give you an amount to just add to any feed you are feeding in the case you get some more down the road.