Effects of Size Variation and Stocking Density on the Growth and body composition of the Mandarin Fish, Siniperca scherzeri

Title
Effects of Size Variation and Stocking Density on the Growth and body composition of the Mandarin Fish, Siniperca scherzeri
Author(s)
김이오; 오승용; 이상민
KIOST Author(s)
Oh, Sung Yong(오승용)
Publication Year
2017-11-09
Abstract
This study investigated the effect of size variation and stocking density on the growth and body composition of mandarin fish, Siniperca scherzeri, in two size groups: small size group(50.2g/fish) and large size group (173.1g/fish). Small size group and large size group were fed one of the experimental diets twice daily for 10 weeks and 15 weeks respectively. At the end of the feeding trial in small size group, weight gain and specific growth rate of fish density 4kg/m3 were lower than those of fish density 3kg/m3, fish density 2kg/m3 and fish density 1kg/m3 . Daily feedintake and daily protein intake of fish density 4kg/m3 were lower than those of fish density 3kg/m3, fish density 2kg/m3 and fish density 1kg/m3. Protein efficiency ratio of fish density 4kg/m3 were higher than those of fish density 3kg/m3, fish density 2kg/m3 and fish density 1kg/m3. At the end of the feeding trial in large size group, weight gain of fish density 6kg/m3 were higher than those of fish density 4.5kg/m3, fish density 3/m3 and fish density 1.5kg/m3 in 5 weeks, weight gain of fish density 4.5kg/m3 and 6kg/m3 were higher than those of fish density 3kg/m3 and fish density 1.5/m3 in 10 weeks. Based on these results, the optimum stocking density for mandarin fish size(50g) is 3kg/m3, the optimum stocking density for mandarin fish size(173g) is 4.5kg/m3.ize group and large size group were fed one of the experimental diets twice daily for 10 weeks and 15 weeks respectively. At the end of the feeding trial in small size group, weight gain and specific growth rate of fish density 4kg/m3 were lower than those of fish density 3kg/m3, fish density 2kg/m3 and fish density 1kg/m3 . Daily feedintake and daily protein intake of fish density 4kg/m3 were lower than those of fish density 3kg/m3, fish density 2kg/m3 and fish density 1kg/m3. Protein efficiency ratio of fish density 4kg/m3 were higher than those of fish density 3kg/m3, fish density 2kg/m3 and fish density 1kg/m3. At the end of the feeding trial in large size group, weight gain of fish density 6kg/m3 were higher than those of fish density 4.5kg/m3, fish density 3/m3 and fish density 1.5kg/m3 in 5 weeks, weight gain of fish density 4.5kg/m3 and 6kg/m3 were higher than those of fish density 3kg/m3 and fish density 1.5/m3 in 10 weeks. Based on these results, the optimum stocking density for mandarin fish size(50g) is 3kg/m3, the optimum stocking density for mandarin fish size(173g) is 4.5kg/m3.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/23598
Bibliographic Citation
2017년도 한국수산과학총연합회 국제학술대회, pp.299, 2017
Publisher
한국수산과학총연합회
Type
Conference
Language
English
Publisher
한국수산과학총연합회
Related Researcher
Research Interests

Fish aquaculture,Aquacultural engineering,Environmental physiology,어류 양식,양식 공학,환경생리학

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