Clavet powder is effective against broad spectrum of aerobic and anaerobic Gram-positive and Gram-negative organisms. Gram Positive Bacteria: Streptococci species, Staphylococci species, Clostridia species, Actinomyces species and some Bacillus anthracis Gram Negative Bacteria: Escherichia coli, Salmonella species, Campylobacter species, Klebsella species and Pasteurella multocida. Clinically, Clavet powder is effective against wide range of infections like Fowl Typhoid, Fowl Cholera, Pullorum Disease, Necrotic Enteritis, Peritonitis, Salpingitis, delayed absorption of Egg Yolk, Endocarditis, Omphalitis, Lameness due to infected Hock and Stifle joint, Bumble Foot, Actinomycosis, Cellulitis, Decreased Hatching, Embryo and early Chick Mortality.