Influence of the variety and harvesting stage of corn for whole crop silage on the excretion of indigestible grain by the dairy cows

animals artiodactyla bovidae bovines cattle cereals crops cultivars dairy cattle digestion domestic animals economic plants excretion feed crops feed grasses feeds glumiflorae grain crops gramineae grasses harvesting industrial crops livestock mammals meat animals methods monocotyledons oil crops physiological functions physiology plants ruminants silage starch crops sugar crops vertebrates zea mays