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방류용 넙치, Paralichthys olivaceus의 표지방법 연구
권문경 ( Mun Gyeong Kwon ),서정수 ( Jung Soo Seo ),황지연 ( Jee Youn Hwang ) 한국어병학회 2014 한국어병학회지 Vol.27 No.2
넙치에 적합한 표지방법을 조사하기 위하여 표지 후 누적폐사율, 혈액생화학적 성상과 조직병리학적 조사를 하였다. 본 연구에서는 아가미뚜껑 절단, 배지느러미50%와 100% 절단 방법을 사용하였다. 누적폐사율은 아가미뚜껑 절단구가 가장 높았다. 배지느러미 100% 절단구와 아가미뚜껑 절단구는 절단 후13일 째 조직병리학적 변화를 나타내었다: 간에서 화농성 염증반응, 체신에서 섬유성 염증반응이 관찰되었다. 본 연구결과 50% 배지느러미 절단구가 가장 효과적인 표지방법인 것으로 판단된다. The suitable tag was investigated based on the cumulative mortality, blood chemistry and histopathology of olive flounder, Paralichthys olivaceus. The dissection of opercle, 50% dissection of pelvic fin and 100% dissection of pelvic fin was used in the experiment. Cumulative mortality of dissection of opercle group was high. The dissection of opercle and 100% pelvic fin dissection groups was showing histological changes after 13days of tagging: purulent inflammation in the liver, fibrous inflammation in the body kidney, hyperplastic ellipsoide capillary in the spleen. As the results, 50% pelvic fin cutting group is the most effective out of them.
Photobacterium damselae의 디스크 확산법 결과에 대한 Epidemiological Cut-off Value의 결정
권문경 ( Mun-gyeong Kwon ),임윤진 ( Yun-jin Lim ),김명석 ( Myoung-sug Kim ),서정수 ( Jung-soo Seo ),김도형 ( Do-hyung Kim ) 한국수산과학회(구 한국수산학회) 2016 한국수산과학회지 Vol.49 No.6
In this study, epidemiological cut-off values were estimated for 44 Photobacterium damselae isolates, since clinical breakpoints have not been established for this pathogenic bacterium. The susceptibility of the isolates to 10 antibiotics was evaluated using internationally standardized disc diffusion protocols. Normalized resistance interpretation was used to generate statistically valid epidemiological cut-off values for the susceptibility data. There were not enough strains exhibiting full sensitivity to ampicillin and amoxicillin to allow analysis of these antibiotics. Because there were only a marginally sufficient number of strains exhibiting full sensitivity to oxytetracycline, the cut-off value generated provided only a provisional estimate. The valid wild-type cut-off values were <13, 13, 9, 22, 25, 27, and 28 mm for gentamicin, cephalexin, erythromycin, oxolinic acid, flumequine, florfenicol, and sulfamethoxazole/trimethoprim, respectively. The application of these cut-off values should greatly facilitate the rational selection of antibiotics for use in commercial fish farms.