·46· 中国兽药杂志 2022 年 3 月第 56 卷第 3 期 Chinese Journal of Veterinary Drug doi: 10． 11751 /ISaracteristics of dry powder Martin agar，fresh Martin agar and swine triplex vaccine chromogenic medium were compared in parallel，and the antigen content of Swine Erysipelas live vaccine，Swine Pasteurella multocida live vaccine and Combined Classical Swine Fever － Swine Erysipelas and 作者简介: 韩美珍，研发工程师，生物工程专业，从事培养基研究与开发工作。E － mail: 1101590538@ qq． com中国兽药杂志 2022 年 3 月第 56 卷第 3 期 Chinese Journal of Veterinary Drug ·47· Pasteurella multocida live vaccine，were compared in parallel by bacteria plate counting． The study results showed that the accuracy and repeatability of the bacteria plate count of swine triplex vaccine chromogenic medium were consistent with that of dry powder Martin agar，and the colony recovery rate of both bacteria was above 0． 9． Therefore，the swine triplex vaccine chromogenic medium in this study can replace Martin agar as a counting agar to detect the content of antigen bacteria of Swine Erysipelas and Swine Pasteurella multocida，and monitor the quality of vaccine in the production process of Combined Classical Swine Fever － Swine Erysipelas and Pasteurella multocida live vaccine． Key words: Combined Classical Swine Fever － Swine Erysipelas and Pasteurella multocida live vaccine;
