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공신국 ( Shin Koog Kong ),이건택 ( Gun Taek Lee ),이관복 ( Kwan Bok Lee ),홍준표 ( Jun Pyo Hong ),강수정 ( Soo Jeong Kang ),문순화 ( Sung Hwa Moon ) 한국가축위생학회 2003 韓國家畜衛生學會誌 Vol.26 No.3
The purpose of this study was sero-epidemiological survey of porcine reproductive and respiratory syndrom(PRRS) in Dangjin area. 411 samples from 26 pig farms were analyzed by enzyme linked immunosorbant assay (ELISA). The data indicate that 66% of the pigs and 92% of the farms showed sero-positives to the PRRS virus. Sows showed 58% of sero-positive rate and fattening pigs showed 85% of sero-positive rate. The rate of sero-positive in boars was 63%. No significant regional differences were detected in sero-epidemiological survey.
공신국 ( Shin Koog Kong ),이건택 ( Gun Taek Lee ),임종묵 ( Jong Mook Lim ),양승민 ( Seung Min Yang ),이요안나 ( Jho An Na Lee ),문순화 ( Sun Hwa Moon ) 한국가축위생학회 2002 韓國家畜衛生學會誌 Vol.25 No.2
The purpose of this study was to detect Mycobacterium bovis in cattle(serum, milk, lung, lymph node) by PCR. Nineteen samples from 7 skin test-positive cattle were analyzed. The amplified band of IS6110 by PCR was detected from 2 samples in lung and lymph node. But the sensitivities of the present methods for detecting M bovis in milk and serum are deficient. Because the PCR sensitivity has been shown to he hindered by the method used to isolate the nucleic acid target. PCR-based methods have the potential to be faster, more accurate, and the most efficient means of detecting M bovis. The detection of M bovis by PCR will contribute to the more efficient detection and control of tuberculosis.
공신국 ( Shin Koog Kong ),육심용 ( Sim Yong Yook ),이건택 ( Geon Taek Lee ),김소연 ( So Yeon Kim ),홍영운 ( Young Un Hong ),정윤택 ( Yoon Taek Jung ),이정화 ( Jung Hwa Lee ),김희정 ( Hee Jeong Kim ),황수명 ( Soo Myung Hwang ),장 한국가축위생학회 2010 韓國家畜衛生學會誌 Vol.33 No.3
Methicillin-resistant coagulase-negative staphylococci (MRCNS) were isolated from the respiratory sites of chickens in 4 farms and slaughter house located in Chungnam provinces. Isolation of coagulase-negative staphylococci (CNS) was positive for 61 (26.6%) of the 229 chickens tested, and isolation of MRCNS was positive for 17 (27.9%) of the isolated CNS. A total of 17 MRCNS isolates were selected and subjected to identification. Of the 17 MRCNS isolates selected, 6 were identified as Staphylococcus cohnii, 2 as S. saprophyticus, 3 as S. simulans, 3 as S. lentus, 2 as S. carnosus, and 1 as S. xylosus. The MRCNS isolates were resistant to many beta-lactam antibiotics, and some isolates were also resistant to macrolide and aminoglycoside antibiotics. The mecA gene was detected in some isolates of each MRCNS strains. The mecA-positive isolates were classified into five staphylococcal cassette chromosome mec (SCCmec). SCCmec types I to IV were detected in isolates from chickens.