FIG. 13. Immediate effect of the buccal administration of magnesium bicarbonate on the excretion of magnesium in the urine and on the level of magnesium in the blood serum
N.B. 1. The arrow indicates commencement of the daily administration of magnesium bicarbonate (50 gm. per cow per day), given buccally.
        2. ENDER estimates that a normal cow excretes 3-20 gm. magnesium per day in the urine.
From ENDER