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KMID : 1023520130360020139
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Korean Journal of Veterinary Service
2013 Volume.36 No. 2 p.139 ~ p.145
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Study on porcine respiratory disease complex from slaughtered pigs in Namwon, Korea
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Kang Mi-Seon
Kang Min-Woo
Jung Se-Ho
Lee Hee-Seon
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Abstract
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Porcine respiratory disease complex (PRDC) continues to be a significant economic problem to the swine industry. In order to elucidate the etiology of PRDC including porcine circovirus type 2 (PCV2), porcine reproductive and respiratory disease syndrome virus (PRRSV), swine influenza virus (SIV), Mycoplasma hyopneumoniae (MH), Pasteurella multocida (PM) and Actinobacillus pleuropneumoniae (APP) in Namwon, the 455 lung samples were randomly collected from slaughtered pigs, examined gross lesions indicative of respiratory disease of lung and classified the lung lesion according to the severity of lung lesions. Two hundred pigs lung tissues with pneumonic lesions were examined for pathogen by PCR. As a result, the numbers of pneumonic lesions were 357 (78.5%), mean pneumonic score (mean±SD) was 2.03±0.90 and the highest gross lesion according to stages was 1 (11∼20%). In detection of pathogens, PCV2, PRRSV, SIV, MH, APP and PM were positive in 76.5%, 5.0%, 6.0%, 9.0%, 4.5% and 6.0%, respectively and PCV2-MH was the most detected causative pathogens of PRDC in co-infection. In the serological test for PRRSV, PCV2, MH, APP2, APP5, HP and PM, showed high antibody positive rates 93% or more.
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KEYWORD
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Slaughtered pigs, Porcine respiratory disease complex, PCR
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