Effect of total replacement of fish oil with tallow and emulsifier in diet on growth, feed utilization, and immunity of olive flounder (Paralichthys olivaceus)
Nalin Medagoda , Min-Gi Kim, Buddhi E. Gunathilaka, Seung-Hwan Park, Kyeong-Jun Lee
언어
영어(ENG)
URL
https://www.earticle.net/Article/A406942
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원문정보
초록
영어
The supplementary effects of an emulsifier mixture (polyoxyethylene (20) sorbitan monolaurate and distilled monoglycerides) were investigated on feed utilization, growth performance, and immunity of olive flounder, Paralichthys olivaceus, replacing fish oil with beef tallow. A fish oil containing diet was considered as positive control (PC) and a diet containing beef tallow instead of fish oil was considered as negative control (TW). Two other diets (EM01 and EM02) were prepared by adding 0.01 and 0.02% of the emulsifier into the TW diet. After 8 weeks of a feeding trial, growth performance and feed utilization were significantly higher in fish fed EM01, EM02, or PC diets compared to those fed the TW diet. Dry matter digestibility was higher in EM01 and EM02 diets than the TW diet and comparable to PC diet. Lipid digestibility was significantly higher in PC diet compared to TW diet. Liver EPA and DHA levels were lower, and oleic acid level was higher in fish fed diets containing tallow compared to PC group. Significantly increased aspartate aminotransferase and triglyceride levels were observed in TW group. Dietary supplemented emulsifier restored the reduced performance of olive flounder fed diets containing tallow instead of fish oil. However, the optimum inclusion level of the emulsifier should be elucidated in future studies.
목차
Abstract 1. INTRODUCTION 2. MATERIALS AND METHODS 2.1 Experimental diets 2.2 Fish and feeding trial 2.3 Sample collection and analysis 2.4 Digestibility test 2.5 Lipase activity 2.6 Statistical analysis 3. RESULTS 4. DISCUSSION REFERENCES
Nalin Medagoda [ Department of Marine Life Sciences, Jeju National University, Jeju, South Korea ]
Min-Gi Kim [ Department of Marine Life Sciences, Jeju National University, Jeju, South Korea ]
Buddhi E. Gunathilaka [ Department of Marine Life Sciences, Jeju National University, Jeju, South Korea ]
Seung-Hwan Park [ SNH Biotech Co., Ltd., Daejeon, South Korea ]
Kyeong-Jun Lee [ Department of Marine Life Sciences, Jeju National University, Jeju, South Korea; Marine Science Institute, Jeju National University, Jeju, South Korea ]
Corresponding Author
제주대학교 해양과학연구소 [Marine Science Institute Jeju National University]
설립연도
1968
분야
농수해양>수산학
소개
해양의 실체와 그 자원의 합리적 이용과 관리방법을 규명하기 위하여 해양물리, 화학, 생물, 지질, 공학등 여러 관련분야에 관한 다양한 연구를 수행하며, 환경의 보전과 보호를 위해서 수질, 대기, 상·하수도, 폐기물, 사회적 환경 등의 연구를 통하여 쾌적하고 청정한 환경을 보전하기 위한 다양한 연구를 수행하고, 또한 해양 및 환경분야의 우수한 인력양성, 국내외 학술교류의 증진, 학·산 협동체제의 확립 등을 통하여 해양과 환경에 관한 기초 및 응용적 학술연구를 종합적으로 수행함을 목적으로 한다.
간행물
간행물명
해양과학연구소 연구논문집 [Bulletin of the Marine Science Institute]