) Administer to fresh cows or heifers before and after calving as a source of energy or for ketotic symptoms. Provides propylene glycol, Niacin and other B-vitamins to lower the incidence of ketosis, boost energy and stimulate appetite. Give one tube at the first sign of freshening then another 6-12 hrs. post calving. Repeat as needed. Requires 3-tab dosing gun for administration.