사육밀도와 먹이 공급 횟수가 대구 (Gadus macrocephalus)의 성장에 미치는 영향 KCI

Title
사육밀도와 먹이 공급 횟수가 대구 (Gadus macrocephalus)의 성장에 미치는 영향
Alternative Title
Effects of Stocking Density and Feeding Frequency on the Growth of the Pacific Cod, Gadus macrocephalus
Author(s)
최영웅; 박흥식; 오승용
KIOST Author(s)
Park, Heung-Sik(박흥식)Oh, Sung Yong(오승용)
Publication Year
2011-02
Abstract
This study investigated the effects of stocking density and feeding frequency (three and five times per week) on the growth of Pacific cod, Gadus macrocephalus. In the first experiment, experimental groups of fish (mean weight 167.8±41.4g ) were reared at three stocking densities (4, 8 and 12 kg/ m3 ) for 16 weeks. The total weight gain was 17.8, 17.1 and 35.4% at 4, 8 and 12 kg/ m3 , respectively. The specific growth rates, survival rates and feeding efficiency increased with the density, but there were no significant differences (P>0.05). The daily feed intake decreased as the stocking density increased, whereas the condition factors increased with the stocking density (P 194.1±68.3g ) were fed either three or five times a week. The total wight gain was 14.4 and 18.5% for the fish fed three and five times per week, respectively. The specific growth rates of Pacific cod fed to satiation increased with the feeding frequency, although the difference was not significant (P>0.05). The survival rates, daily feed intake, feed efficiency, and condition factors of the Pacific cod were not significantly different (P>0.05). Based on these results, the optimum stocking density for juvenile cod is above 12 kg/ m3 , and the best feeding frequency is three times a week, under the conditions used in this experiment.
ISSN
0374-8111
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/3657
Bibliographic Citation
한국수산과학회지, v.44, no.1, pp.58 - 63, 2011
Publisher
한국수산과학회
Keywords
Pacific cod; Gadus macrocephalus; Stocking density; Feeding frequency; Growth
Type
Article
Language
Korean
Publisher
한국수산과학회
Related Researcher
Research Interests

Marine ecology,Marine biology,Marine living resources,해양생태,해양생물 생리,해양생물자원

Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse