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NTIS 바로가기한국수산과학회지 = Korean journal of fisheries and aquatic sciences, v.47 no.6, 2014년, pp.810 - 817
김강웅 (국립수산과학원 사료연구센터) , 이진혁 (국립수산과학원 사료연구센터) , 배기민 (국립수산과학원 사료연구센터) , 김경덕 (국립수산과학원 사료연구센터) , 이봉주 (국립수산과학원 사료연구센터) , 한현섭 (국립수산과학원 사료연구센터) , 김성삼 (국립수산과학원 사료연구센터)
Two consecutive feeding trials were conducted to evaluate the effects of extruded pellet (EP) and raw fish-based moist pellet (MP) in the juvenile (experiment I) and sub-adult (experiment II) stages of olive flounder, Paralichthys olivaceus. The fish were distributed randomly to three aquarium tanks...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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넙치 양식에서 배합사료로부터 습사료로 전환하는 이유는 무엇인가? | 주로 치어기에는 배합사료를 사용하고 100-300 g 크기에서 습사료로 전환을 하기 때문이다. 이렇게 습사료로 전환하는 것은 여러 이유가 있지만, 가장 큰 원인은 습사료가 배합사료 보다 성장이 빠르다고 인식하기 때문이다. 따라서 성장이 습사료에 뒤지지 않는 고효율 배합사료의 개발 및 현장 비교 실험이 수행되어야 한다. | |
우리나라 넙치 양식에 사용되는 사료는 무엇인가? | 우리나라 넙치 양식에는 배합사료(extruded pellet, EP)와 습사료(moist pellet, MP)가 혼용되어 사용되고 있으며, 2013년 전체 넙치 사료 사용량인 225,331톤에서 91% 이상을 습사료가 차지하고 있는 실정이다(Statistics Korea, 2014). 주로 치어기에는 배합사료를 사용하고 100-300 g 크기에서 습사료로 전환을 하기 때문이다. | |
Cho et al.의 연구와 Lee et al.의 연구에서 치어기 넙치의 성장에 대한 배합사료와 습사료의 차이가 다르게 나타난 이유는 무엇인가? | (2005)의 연구에서도 치어기 넙치를 대상으로 배합사료와 습사료를 비교한 결과 배합사료와 습사료가 대등한 성장결과를 보였다. 이처럼 여러 연구에서 서로 다른 결과를 보인 것은 실험어류의 종묘, 실험환경(수온, 밀도, 용존산소 등), 사료의 성분 및 조성 등의 차이와 사료공급량, 공급방법, 공급횟수 및 사육관리 방법 등 여러 가지 요인이 복합적으로 영향을 미쳤을 것으로 판단된다. 본 연구에서 배합사료가 습사료 보다 유의적으로 높은 성장률을 보인 것은 위에서 언급한 여러 가지 복합적인 영향과 더불어 실험 기간 중 습사료 실험구에서 수온이 가장 높은 9월에 질병이 발생하여 10월까지 꾸준히 폐사가 발생하여 생존율이 유의적으로 감소하였기 때문으로 판단된다. |
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Kim SS, Jang JW, Song JW, Lim SJ, Jeong JB, Lee SM, Kim KW, Son MH and Lee KJ. 2009. Effects of dietary supplementation of alga mixtures (Hizikia fusiformis and Ecklonia cava) on innate immunity and disease resistance against Edwardsiella tarda in olive flounder (Paralichthys olivaceus). Kor J Fish Aquat Sci 42, 614-620.
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