순환여과 양식시스템 내 무지개송어(Oncorhynchus mykiss)의 적정 용존산소 농도평가
(주)코리아스칼라
- 최초 등록일
- 2023.12.18
- 최종 저작일
- 2023.11
- 12페이지/ 어도비 PDF
- 가격 4,300원
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서지정보
ㆍ발행기관 : 한국수산해양기술학회(구 한국어업기술학회)
ㆍ수록지정보 : 수산해양기술연구 / 59권 / 4호
ㆍ저자명 : 박근홍, 최진서, 이영훈, 박정환
목차
서 론
재료 및 방법
사육 시스템
실험 어류 및 실험 조건
수질 분석
혈액학적 분석
통계 분석
결 과
어류의 성장 및 생존율
수질 분석
혈액학적 분석
고 찰
결 론
사 사
영어 초록
Conventional aquaculture faces declining productivity, shifting to recirculating aquaculture system (RAS), known for minimizing water usage and maintaining consistent water temperatures for year-round fish growth. Rainbow trout (Oncorhynchus mykiss), a globally important cold-water species and the third most farmed fish in inland waters of Korea, valued for its fecundity and rapid growth. Dissolved oxygen, an important environmental factor affecting fish production and economics, highlights the need for smart aquaculture practices. Since 2018, the rise of intelligent aquaculture platforms, incorporating information and communications technology (ICT), emphasizes the essential role of RAS implementation. This eight-week study aimed to determine the optimal dissolved oxygen concentration for rainbow trout in RAS, utilizing a device for continuous monitoring, control and record. Dissolved oxygen concentrations were set at 5-6 mg/L, 9-10 mg/L, 14-15 mg/L and 17-18 mg/L. The growth rate significantly decreased at 5-6 mg/L, with no significant differences in other experimental groups. In hematological analysis, growth hormone (GH) was significantly highest at 5-6 mg/L, followed by 9-10 mg/L while Insulin-like growth factor-1 (IGF-1) was significantly lowest at 5-6 mg/L. In conclusion, the optimal dissolved oxygen concentration for rainbow trout in RAS is approximately 9-10 mg/L. Higher concentrations do not contribute to further growth or profitability.
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