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Effects of extruded pellet and moist pellet feed on health conditions of olive flounder Paralichthys olivaceus  

Cho, Mi-Cho (Aquatic Animal Disease Control Center, National Fisheries Research and Development Institute)
Oh, Yun-Kyeong (Aquatic Animal Disease Control Center, National Fisheries Research and Development Institute)
Park, Shin-Hoo (Aquatic Animal Disease Control Center, National Fisheries Research and Development Institute)
Lee, Hae-Young (Aquafeed Research Center, NFRDI)
Kang, Yong-Jin (Aquafeed Research Center, NFRDI)
Park, Myoung-Ae (Pathology Division, National Fisheries Research and Development Institute)
Publication Information
Journal of fish pathology / v.22, no.3, 2009 , pp. 283-291 More about this Journal
Abstract
This study was conducted to evaluate the effects of a commercial extruded pellet (EP) and raw fish moist pellet (MP) diet on disease prevalence and serum chemistry of olive flounder Paralichthys olivaceus grown in two commercial-scale aquaculture farms from July to December in 2008. The contents of serum GOT, GPT and glucose in fish fed EP diet (EP group) were higher than those of fish fed the MP diet (MP group). There were no distinct differences in survival rates and mean detection rates of fish pathogens among fish group fed the experimental diets. However, the mean detection rate of fish pathogens in MP group was higher than that of EP group from July to October which are high water temperature season. The dominant pathogens isolated in EP group were Dactylogyrus sp., E. tarda and red sea bream iridovirus (RSIV). On the other hand, Trichodina sp., Streptococcus spp., viral nervous necrosis virus (VNNV) were dominant in MP group.
Keywords
Olive flounder; Extrude pellet; Moist pellet; Disease prevalence; Serum chemistry;
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Times Cited By KSCI : 4  (Citation Analysis)
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