Ive read both to put in the muscle and not to put in the muscle because is causes permenant muscle damage. Ive read to inject in the neck, into the leg, and into the breast. Seems the breast would be best, but where? which side? What kind of muscle damage? Ive also read its best to put the injectable into the mouth. Im asking because around here they dont carry anything for poultry, but Tylan-50 and Tylan-200 injectable and Duramycin-10 (goes in the water). Help please!! My birds are getting pretty sick!