지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
Shrimps infected with WSSV (White Spot Syndrome Virus) generally exhibit white spots in their inner space of carapaces as an acute clinical sign. In an effort to identify the correlation between this acute clinical sign and the condition, the index factors (RNA/DNA concentration and ratio, trypsin activity) were analyzed. A total 580 farmed Fenneropenaeus chinensis and 130 Lithopenaeus vannamei were collected from western and southern fifteen outdoor ponds in Korea. The status of the white spot pathology was divided into four stages (stage 0, stage I, stage II, and stage III), in accordance with the clinical signs as to the size and area of white spots. A significant decrease in RNA concentration and RNA/DNA ratio for multi-infected fleshy prawn (WSSV and vibrio sp.) occurred during the stage III (the whole carapace is covered with a white spot). In particular, RNA/DNA ratio was significantly lower as 1.47±0.04 than other groups. A similar trend was also found in the single infection (WSSV), but the decrease was less than the multi-infection. In the species comparison, both species were vulnerable to the multi-infection, but L. vannamei was more sensitive than F. chinensis (ANOVA, p<0.05): A significant decrease in RNA concentration and RNA/DNA ratio was first found in stage II for the former species, while it was found in stage III for the latter species. Trypsin activity was also showed a similar tendency with nucleic acid variation. Multi-infected shrimp showed drastically decrease of trypsin activity. According to the results, clinical signs of the white spot under carapace have an only physiological effect on shrimp if they covered entirely with white spots.
목차
등록된 정보가 없습니다.
참고문헌 (24)
참고문헌 신청
Briggs M / 2004 / Introductions and movement of Penaeus vannamei and Penaeu stylirostris in Asia and the Pacific / FAO Regional Office for Asia and the Pacific : 1 ~ 92
Buckley L. / 1984 / RNA : DNA ratio and index of larval fish growth in the sea / Mar. Biol 80 : 291 ~ 298
Bulow JF / 1987 / The Age and Growth of Fish / The Iowa State University Press : 45 ~ 64
Chang PS / 1996 / Identification of white spot syndrome associated baculovirus (WSBV) target organs in shrimp, Penaeus monodon, by in situ hybridization / Dis. Aquat. Org 27
Chen LL / 2000 / Natural and experimental infection of white spot syndrome virus (WSSV) in benthic larvae of mud crab Scylla serrata / Dis. Aquat. Org 40 : 157 ~ 161
Buckley L. / 1984 / RNA : DNA ratio and index of larval fish growth in the sea / Mar. Biol 80 : 291 ~ 298
Bulow JF / 1987 / The Age and Growth of Fish / The Iowa State University Press : 45 ~ 64
Chang PS / 1996 / Identification of white spot syndrome associated baculovirus (WSBV) target organs in shrimp, Penaeus monodon, by in situ hybridization / Dis. Aquat. Org 27
Chen LL / 2000 / Natural and experimental infection of white spot syndrome virus (WSSV) in benthic larvae of mud crab Scylla serrata / Dis. Aquat. Org 40 : 157 ~ 161
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