“…It appears that, as with cereal grains, grain legumes should be ground or rolled before feeding to cattle. When lupin grain was fed as whole seed to cattle, an appreciable proportion (up to 0.26 in dairy cattle) escaped digestion and was excreted in faeces (May & Barker, 1984;. The observation of the latter authors that the decrease in digestibility could be attributed entirely to the whole grain recovered in faeces suggests that the grain need only be cracked to allow complete digestion by cattle.…”