Pennfield's Pennchlor 50G® is a Type A Medicated Article that contains
50 grams chlortetracycline as the calcium complex and calculated as
hydrochloride per pound. Chlortetracycline is a broad spectrum
antibiotic cleared for use in livestock and poultry feeds.
Chlortetracycline is used in livestock and poultry to treat disease,
and as an aid to increase weight, and improve feed/gain ratio.
Chlortetracycline is effective against strains of both gram-positive
and gram-negative organisms. Chlortetracycline is indicated to increase
the rate of weight gain and improve feed efficiency in cattle, swine,
chickens, turkeys and sheep.