Taken orally via drinking water:-Broiler chickens: 40 gm of ATCO-AMPICIN 50% / 1000 kgb.wt. once daily for 3 days (0.4 gm / 1 Liter ).Calves: 1 gm of ATCO-AMPICIN 50% / 50 kg b.wt. twice dailyfor 3 -5 days.