Open AccessEffects of Dietary Chlorella ellipsoidea Supplementation on Growth, Blood Characteristics, and Whole‐Body Composition in Juvenile Japanese Flounder Paralichthys olivaceus
Author(s) -
Kim KangWoong,
Bai Sungchul C.,
Koo JaWan,
Wang Xiaojie,
Kim SeKwon
Publication year - 2002
Publication title -
journal of the world aquaculture society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.655
H-Index - 60
eISSN - 1749-7345
pISSN - 0893-8849
DOI - 10.1111/j.1749-7345.2002.tb00021.x
Subject(s) - paralichthys , biology , olive flounder , juvenile , feed conversion ratio , zoology , flounder , protein efficiency ratio , composition (language) , body weight , weight gain , food science , fishery , fish <actinopterygii> , endocrinology , ecology , linguistics , philosophy
The study was conducted to investigate the effects of dietary Chlorella powder (C) supplementation on growth performance, blood characteristics, and whole‐body composition in juvenile Japanese flounder Paralichthys olivaceus . Four experimental diets were supplemented with C at 0, 1, 2 and 4% (C 0 , C 1 , C 2 , and C 4 ) on a dry‐weight basis. Three replicate groups of fish averaging 1.13 ± 0.02 g (Mean ± SD) were randomly distributed in each aquarium and fed one of four experimental diets for 12 wk. After 12 wk of the feeding trial, fish fed C 2 diet had higher weight gain (WG), feed efficiency (FE), and protein efficiency ratio (PER) than did fish fed C 0 and C 1 diets ( P 0.05); however, there was no significant difference among fish fed C 1 and C 4 diets, and among fish fed C 2 and C 4 diets ( P > 0.05). Fish fed C 2 and C 4 diets had a lower serum cholesterol level than did fish fed C 0 and C 1 diets ( P 0.05). Fish fed C 2 and C 4 diets had a lower body fat than did fish fed C 0 ( P 0.05). These results indicate that dietary supplementation of 2% Chlorella powder in the commercial diets could improve growth, feed utilization, serum cholesterol level, and whole‐body fat contents in juvenile Japanese flounder.