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Fish farm monitoring report for outdoor aquaculture of far eastern catfish Silurus asotus in Korea

Hyeongsu Kim|Jongsung Park|Bokki Choi
한국수산과학회 (The Korean Society of Fisheries and Aquatic Science)|2023.11|Fisheries and Aquatic Sciences|제26권 제11호|pp. 660-668

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키워드

MonitoringGrowth performanceFish farmSilurus asotusFar eastern catfish
주제분류수산학

초록

This study aimed to investigate the growth performance of far eastern catfish (Silurus asotus) on outdoor fish farms to obtain basic data for the domestic eastern catfish aquaculture industry. An outdoor fish farm was directly monitored from June 2018 to October 2019 to determine the farming conditions, growth performance, and water quality. The growth performance in 2017 was analyzed using data from the same fish farm. Three years of monitoring showed that the fish farm required approximately 5–6 months between stocking, harvesting, and selling an S. asotus batch. The growth parameters, namely, the weight gain rate (WGR), specific growth rate (SGR) for culture periods, SGR for feeding periods, and feed coefficient rate (FCR), were 4,664.7%, 1.27%, 2.43%, and 1.25 in 2017; 6,452.0%, 1.52%, 2.79%, and 1.42 in 2018; and 3,270.0%, 1.11%, 2.12%, and 1.38 in 2019, respectively. Moreover, the WGR was two-fold higher in 2018 than 2019, whereas the FCR was more effective in 2019 than 2018, presumably because of the stocking density. No mass mortality was observed during the water quality analysis. The results of this study provide basic data for the development of the catfish industry.

Abstract

This study aimed to investigate the growth performance of far eastern catfish (Silurus asotus) on outdoor fish farms to obtain basic data for the domestic eastern catfish aquaculture industry. An outdoor fish farm was directly monitored from June 2018 to October 2019 to determine the farming conditions, growth performance, and water quality. The growth performance in 2017 was analyzed using data from the same fish farm. Three years of monitoring showed that the fish farm required approximately 5–6 months between stocking, harvesting, and selling an S. asotus batch. The growth parameters, namely, the weight gain rate (WGR), specific growth rate (SGR) for culture periods, SGR for feeding periods, and feed coefficient rate (FCR), were 4,664.7%, 1.27%, 2.43%, and 1.25 in 2017; 6,452.0%, 1.52%, 2.79%, and 1.42 in 2018; and 3,270.0%, 1.11%, 2.12%, and 1.38 in 2019, respectively. Moreover, the WGR was two-fold higher in 2018 than 2019, whereas the FCR was more effective in 2019 than 2018, presumably because of the stocking density. No mass mortality was observed during the water quality analysis. The results of this study provide basic data for the development of the catfish industry.

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관련 논문AI추천

바이오플락과 유수식 시스템에서 메기(Silurus asotus) 배합사료내 단백질 함량에 따른 성장도 및 수질 비교 연구김형수, 박준성, 이동길, 정해승, 황주애한국수산과학회 · 한국수산과학회지2022 · 제55권 제5호메기 Silurus asotus용 실험 배합사료와 상품사료의 사육효능 비교강용진, 김강웅, 김경덕, 김광석, 김응오, 손맹현, 안철민, 임상구, 조용철한국수산과학회 · 한국수산과학회지2012 · 제45권 제2호Dietary Protein Requirement for Young Far Eastern Catfish Silurus asotus김강웅, 김경덕, 김진도, 손맹현, 이봉주, 한현섭한국수산과학회 · Fisheries and Aquatic Sciences2014 · 제17권 제4호뱀장어(Anguilla japonica) 적정 사육관리를 위한 양식기술 현황김강웅, 김경덕, 김신권, 손맹현한국수산과학회 · 한국수산과학회지2011 · 제44권 제4호메기(Silurus asotus) 양어 순환식 아쿠아포닉스와 수경재배 엽채류의 생육 및 수질의 비교김민정, 박원성, 심창기, 이재형, 허정욱한국환경농학회 · 한국환경농학회지2023 · 제42권 제4호메기, Silurus asotus 사료의 어분 대체 단백질원으로 대두박 및 실용사료 사육효능 평가강용진, 김경덕, 김진도, 임상구, 황주애한국수산과학회 · 한국수산과학회지2009 · 제42권 제4호

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