台灣地區豬呼吸道疾病綜合症相關病原之分析

Study of Infectious Agents Involved in Porcine Respiratory Disease Complex in Taiwan

楊程堯(Cheng-Yao Yang) ； 張聰洲(Tsung-Chou Chang) ； 林昭男(Chao-Nan Lin) ； 蔡敬屏(Ching-Ping Tsai) ； 邱明堂(Ming-Tang Chiou)

《臺灣獸醫學雜誌》 33卷1期 (2007/03) Pp. 40-46

https://doi.org/10.7009/TVJ.200703.0040

摘要

收集台灣地區57個一貫化商業養豬場，共222個豬隻呼吸道檢體，針對豬呼吸道疾病綜合症(Porcine respiratory disease complex; PRDC)之相關病原進行檢驗分析，結果發現呈現PRDC者共有136例(61.3%)。136個PRDC病例中，以第二型豬環狀病毒(porcine circovirus type 2; PCV2)的檢出率最高，佔90.4%，其次依序為巴斯德桿菌(Pasteurella multocida; PM) （115例，84.6%）、黴漿菌(Mycolpasma hyopneumoniae; MH) （113例，83.1%）、沙氏桿菌(Salmonella enterica serotype Choleraesuis; SC) （61例，44.9%）、豬生殖與呼吸綜合症病毒(porcine reproductive and respiratory syndrome virus; PRRSV) （28例，20.6%）、放線桿菌胸膜肺炎(Actinobacillus pleuropneumoniae; AP) （28例，20.6%）及鏈球菌(Streptococcus suis; SS) （13例，9.6%），而豬流行性感冒病毒(swine influenza virus)僅佔1.5%。在PCV2混合感染部份，以PCV2及PM混合戚染比率最高（102例，75%），其次為PCV2及MH混合感染者有101例(74.3%)，PCV2及SC混合戚染者有58例(42.6%)，PCV2及AP混合戚染者有27例(19.9%)。上述調查結果顯示，PRDC為台灣地區豬隻之重要疾病，而感染PRDC的病例中以PCV2的檢出率最高，且PCV2常與其他病原混合感染，其在PRDC的致病機制上應扮演著重要角色。

關鍵字

豬呼吸道疾病綜合症 ； 肺炎 ； 病原 ； 調查

並列摘要

This study investigated the prevalence of porcine respiratory disease complex (PRDC) and its infectious agents in Taiwan. Two hundred and twenty-two cases collected from 57 commercial pig herds were analyzed. Histopathological examination, isolation and polymerase chain reaction indicated that 61.3% (136/222) of collected cases had PRDC. Among the 136 PRDC cases, 123 were positive for porcine circovirus type 2 (PCV2), 115 were positive for Pasteurella multocida (PM), 113 were positive for Mycoplasma hyopneumoniae (MH), 61 were positive for Salmonella enter/ca serotype Choleraesuis (SC), 28 were positive for porcine reproductive and respiratory syndrome virus (PRRSV), 28 were positive for Actinobacillus pleuropneumoniae (AP), 13 were positive for Streptococcus suis (SS), and 2 were positive for swine influenza virus. Among those cases infected with PCV2, PM (102/136, 75%) was most prevalent followed by MH (101/136, 74.3%), SC (58/136, 42.6%), and AP (27/136, 19.9%). Based on analytical data, PRDC is an important disease in weaning, growing and finishing pigs. Of the infectious agents present in PRDC, PCV2, the most common pathogen, is frequently concurrent with other pathogens. Thus, PCV2 infection may play an important role in the pathogenesis of PRDC.

並列關鍵字

porcine respiratory disease complex ； pneumonia ； pathogen ； survey