Tylosin containing antibiotic injection for animals

The present invention describes a composition and method for preparing an injection containing the tylosin antibiotic. 1. Preferred alkali tylosin antibiotic is tylosin, tylosin tartrate or phosphate, and salts of tilmicosin formed with an acid, acetyl isovaleryl tylosin with an acid and are formed . salts; 2 dispersion medium is preferably triacetin, benzyl benzoate, the formulation may also be added methylal glycerin, dimethylacetamide or N- methyl - pyrrolidone or non-ionic surfactant, prepared suspending agents may also be added during suspension. Tylosin base depot or tilmicosin or acetyl isovaleryl tylosin base active ingredient is prepared, injected subcutaneously to an animal, the first dose, duration of efficacy of up to 3 days or more, for control effect chickens, piglets, lambs, calves and other animals mycoplasma infections significantly.