Taken orally via drinking water:-Chickens: 100 gm of ATCO-AMPICIN 20% / 1000 kg b.wt. indrinking water once daily for 3 - 5 days(eq. to 1 gm of ATCO-AMPICIN 20% / 1 Liter drinking water).Pre-ruminant Calves & Pigs: 0.87 gm of ATCO-AMPICIN 20%/ 20 kg b.wt. in drinking water twice daily for 3 - 5 days.