Birds intramuscular injection

Spectinomycin is an aminocyclitol antibiotic produced by Streptomyces spectabilis. It is indicated for use via the oral and intramuscular or subcutaneous routes in the treatment of a variety of enteric, respiratory, and other infections of cattle, sheep, swine and poultry. Recommended dosages are 7.5-12.5 mg/kg bw for intramuscular injections and 1-5 mg/bird for subcutaneous injections in poultry. Spectinomycin is frequently combined with lincomycin and administered either intramuscularly at 15 mg/kg bw to calves, sheep, and swine (15), and at... 

The experiments of Dixon and Thayer indicate that intramuscular injections of aureomycin and procaine penicillin G are effective in enhancing growth, possibly by gaining access to the bowel, and that functional caeca are not essential for the growth-promoting action in the bird. 

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