Crop Comments: Heavy Forage Diets May Spawn Phosphorus Deficiency

My classic 1959 copy of “Morrison’s Feeds and Feeding” (22nd edition) comes in quite handy in balancing livestock rations. That hardcover book was a relatively new text when I took basic livestock nutrition at Cornell under Professor Richard Warner in 1966. Dietary energy need was expressed in TDN (total digestible nutrients). There was almost no