Make a summary: Purpose poisons the agile experiment does engineered resistance analysis together to Chongqing area part dairy milk cow mammitis patho...poiesia sex staphylococcus being in progress with the streptococcus, the antibiotic and prevention and cure that disease provide a basis to clinical rational use. Method follows the agile experiment carrying out medicine according to Kirby-Bauer that WHO (WHO) recommends. Originally inferior test result indicates result , the staphylococcus poisons rates to different oxazole of sulfanilamide being able to bear being 100% , the penicillin poisons rates with the illotycin being able to bear approaching 100% equally , the streptococcus poisons rates most highly , is 61.11% to the penicillin being able to bear, being able to bear to streptomycin , illotycin , Achromycin etc. poisons rates exceeding 50% without exception ,become the lurking danger treating clinically , point out that safety applies the significance curing medicine's.