Antibiotic growth promoters (AGPs) in poultry feed are used to improve growth and feed efficiency by suppressing subclinical infections and reducing nutrient competition from gut bacteria. AGPs can inhibit the growth of certain gut bacteria, reducing the amount of nutrients they consume and making more available for the bird. It is the best combination for controlling the e coli & salmonella infections. This product works against gram positive and gram negative bacteria. It is very effective against prevention of early chick mortality, e coli, CRD, salmonella infections.