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대구지역 도축장 출하가축의 도체에서 분리한 Staphylococcus aureus의 항생제 내성과 MRSA 검출에 관한 연구
임현숙 ( Hyun-sook Lim ),서동균 ( Dong-keun Suh ),김환득 ( Hwan-deuk Kim ),이혜화 ( Hye-hwa Lee ),김정미 ( Jeong-mi Kim ),임미하 ( Miha Im ),조재근 ( Jae-keun Cho ) 한국동물위생학회 2024 韓國家畜衛生學會誌 Vol.47 No.1
At the present study, it was aimed to explore the states of antimicrobial resistant Staphylococcus aureus isolates from 1,360 chickens, pigs and cattle carcass (400 chickens, 480 pigs and 480 cattle) in Daegu province from January 2022 to December 2022. Among 1,360 samples, 81 of S. aureus were isolated cattle (1.4%), pigs (7.7%) and chickens (9.2%). In antimicrobial susceptibility test, all of the isolates were demonstrated susceptibility to rifampin. But the isolates were showed resistance other antibiotics in order of tetracycline (62.9%), ciprofloxacin (62.9%), tobramycin (58.0%), gentamicin (51.8%), amikacin (40.7%), penicillin (39.5%), clindamycin (35.8%), enrofloxacin (33.3%), trimethoprim/sulfamethoxazole (30.8%), oxacillin (30.8%), minocycline (29.6%), erythromycin (25.9%), quinupristin/dalfopristin (20.9%), chloramphenicol (12.3%), cefoxitin (9.8%). Among the 81 S. aureus isolates, 25 (30.8%) methicillin-resistant staphylococcus aureus (MRSA) were observed. Seven (28.0%) of 25 MRSA harbored mecA gene. About 96% of MRSA were multidrug resistance to at least 3 more drugs. A continuous monitoring and surveillance program to prevent antimicrobial resistance in livestock products is demanded.
경승희 ( Kyung Seung-hui ),임현숙 ( Im Hyun-sook ),배정주 ( Bae Jung-ju ),안충원 ( Ahn Choong-weon ),박용순 ( Park Yong-soon ) 한국구조물진단유지관리공학회 2017 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.21 No.2
There are bolt tightening torque decision standards in KSB 0101 for high tension bolt(torque calculation method) and in KSB 0140 for general bolts(general rule for bolt tightening torque decision), But in bolt torque decision general rule method, using Stainless bolt, friction coefficients between bolt and to-be-bolted object will rule the calculated yielding contraction axle force and yielding contraction torque, making it hard to determine the contraction torque in the field. So in other to help determine the contraction torque for stainless bolts(STS304) in field using high tension bolt torque decision method, the needed torque for stainless bolt(STS304) is calculated referencing high tension bolt torque decision method. And the calculated torque is planned to be compared to field test results.