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바이오플락과 유수식 시스템에서 메기(Silurus asotus) 배합사료내 단백질 함량에 따른 성장도 및 수질 비교 연구

Comparison of Dietary Protein Levels on Growth Performance of Far Eastern Catfish Silurus asotus and Water Quality in Biofloc Technology and Flow-through Systems

김형수|이동길|황주애|박준성|정해승
한국수산과학회 (The Korean Society of Fisheries and Aquatic Science)|2022.10|한국수산과학회지 (Korean Journal of Fisheries and Aquatic Sciences)|제55권 제5호|pp. 541-548|DOI https://doi.org/10.5657/KFAS.2022.0541

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참고문헌

키워드

Water qualityFresh waterFar Eastern catfishProtein levelsBiofloc technology
주제분류수산학

초록

Biofloc technology (BFT) systems provides an additional protein source for fish by converting waste in microbial flocs. Therefore, we aimed to determine the difference in the protein levels of the diet of Far Eastern catfish Silurus asotus reared in BFT and FW systems. We applied a two-way (six protein levels × two aquaculture systems) ANOVA design. We formulated six experimental diets to contain different protein levels (CPs)– 20%, 25%, 30%, 35%, 40% and 45%–referred to as the CP20, CP25, CP30, CP35, CP40 and CP45 diets, respectively. We randomly distributed 900 fish into 36 (18 each for BFT and FW), 300 L tanks (25 fish/tank) with three replications of each diet for 4 weeks. The weight gain (WG) and specific growth rate (SGR) considerably improved as the dietary protein level increased in the formulated diets. The BFT fish showed higher growth performance with any experimental diet than the FW fish. The growth performance of the fish fed the BFT-CP35 diet was higher than that of the fish fed the FW-CP45 diet. In conclusion, the cultivation of Far Eastern catfish (S. asotus) in BFTs can be carried out under reduced dietary protein levels.

Abstract

Biofloc technology (BFT) systems provides an additional protein source for fish by converting waste in microbial flocs. Therefore, we aimed to determine the difference in the protein levels of the diet of Far Eastern catfish Silurus asotus reared in BFT and FW systems. We applied a two-way (six protein levels × two aquaculture systems) ANOVA design. We formulated six experimental diets to contain different protein levels (CPs)– 20%, 25%, 30%, 35%, 40% and 45%–referred to as the CP20, CP25, CP30, CP35, CP40 and CP45 diets, respectively. We randomly distributed 900 fish into 36 (18 each for BFT and FW), 300 L tanks (25 fish/tank) with three replications of each diet for 4 weeks. The weight gain (WG) and specific growth rate (SGR) considerably improved as the dietary protein level increased in the formulated diets. The BFT fish showed higher growth performance with any experimental diet than the FW fish. The growth performance of the fish fed the BFT-CP35 diet was higher than that of the fish fed the FW-CP45 diet. In conclusion, the cultivation of Far Eastern catfish (S. asotus) in BFTs can be carried out under reduced dietary protein levels.

참고문헌 (39)

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관련 논문AI추천

Dietary Protein Requirement for Young Far Eastern Catfish Silurus asotus김강웅, 김경덕, 김진도, 손맹현, 이봉주, 한현섭한국수산과학회 · Fisheries and Aquatic Sciences2014 · 제17권 제4호사료 내 일인산칼륨(MKP) 수준이 Hybrid 바이오플락(BFT) 아쿠아포닉 시스템 내 메기(Silurus asotus) 및 엽채류 4종의 생산성과 수질변화에 미치는 영향김달영, 김정대, 김주민, 김진영, 신승준, 이동훈, 임성률한국수산과학회 · 한국수산과학회지2019 · 제52권 제2호Fish farm monitoring report for outdoor aquaculture of far eastern catfish Silurus asotus in KoreaBokki Choi, Hyeongsu Kim, Jongsung Park한국수산과학회 · Fisheries and Aquatic Sciences2023 · 제26권 제11호메기(Silurus asotus) 및 엽채류의 성장과 생산을 위한 Hybrid BFT 아쿠아포닉스(HBFT-AP), 반순환 양식(Semi-RAS) 및 수경재배 (Hydroponics)의 비교 연구김광배, 김달영, 김정대, 김주민, 김진영, 이동훈, 임성률한국수산과학회 · 한국수산과학회지2019 · 제52권 제5호메기 Silurus asotus용 실험 배합사료와 상품사료의 사육효능 비교강용진, 김강웅, 김경덕, 김광석, 김응오, 손맹현, 안철민, 임상구, 조용철한국수산과학회 · 한국수산과학회지2012 · 제45권 제2호메기, Silurus asotus 사료의 어분 대체 단백질원으로 대두박 및 실용사료 사육효능 평가강용진, 김경덕, 김진도, 임상구, 황주애한국수산과학회 · 한국수산과학회지2009 · 제42권 제4호

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