B. milk ducts C. cisterns D. constrictor muscle E. myoepithelial cells 30. E. mastitis 32. C. teat canal D. streak sphincter E. streak canal 33. Vitamins are broken into two classifications. Minerals are broken into two classifications.
Concentrates are usually low in energy, low in fiber, and highly digestible.
Roughages are high in fiber, less digestible and low in energy. The following are examples of concentrates. A. Concentrates B. Roughages 46. A. Esophagus B. Stomach C. Small Intestine D. Large Intestine E. Does not occur 54. Cows have a dietary requirement for B vitamins.