以生物相色析法（Bioautography）與圓筒平板法（Cylinder-plate Method）測定市售瓶裝或鋁箔裝牛奶中抗生素殘留情形如下：檢驗七家廠牌計1069件樣品發現20.86％含有殘留抗生素，其中43.8％遠超過F.A.O/W.H.O. 最高容許量甚鉅。殘留抗生素種類以Penicillin居首；含Penicillin（PC），Tetracycline（TC）group及其他抗生素之比率分別為9.64％，6.46％及11.04％；所有樣品測出之力價（Potency）範圍：PC，0.01~0.203 u/ ml；TC group，0.02~0.46 μg/ ml；其他抗生素0.01~0.258 u/ ml。 After having determined 1069 marketable bottled or wrapped in aluminium foil milk products with Bioautography and Cylinder-Plate Method, we discovered that 20.86% contained the residual antibiotics, and out of which 43.8% exceeded the maximam permissible level suggested for milk by the F.A.O./W.H.O.
The percentages of the antibiotics including in these inspected samples are: penicillin 9.64%, TC group6.46%, others 11.04% respectively. The detectable potencies are penicillin0.01~ 0.203 u/ml, TC group0.02~0.46μg/ml, others 0.01~0.258u/ml.
