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题名: Compared to fish oil alone, a corn and fish oil mixture decreases the lipid requirement of a freshwater fish species, Carassius auratus gibelio
作者: Zhou, J. C.1, 2; Han, D.1, 3; Jin, J. Y.1; Xie, S. Q.1; Yang, Y. X.1; Zhu, X. M.1
通讯作者: Zhu, XM (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China.
关键词: Plant oil ; Lipid concentrations ; Growth ; Fatty acid composition ; Gene expression ; Carassius auratus gibelio
刊名: AQUACULTURE
发表日期: 2014-05-20
DOI: 10.1016/j.aquaculture.2014.03.029
卷: 428, 页:272-279
收录类别: SCI
文章类型: Article
部门归属: [Zhou, J. C. ; Han, D. ; Jin, J. Y. ; Xie, S. Q. ; Yang, Y. X. ; Zhu, X. M.] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China ; [Zhou, J. C.] Univ Chinese Acad Sci, Beijing, Peoples R China ; [Han, D.] Freshwater Aquaculture Collaborat Innovat Ctr Hub, Wuhan 430070, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: Natural Science Foundation of China [31123001]; Modern Agro-industry Technology Research System [CARS-46-19]; Special Fund for Agro-scientific Research in the Public Interest [201003020]; National Key Basic Research Program [2014CB138602]
类目[WOS]: Fisheries ; Marine & Freshwater Biology
研究领域[WOS]: Fisheries ; Marine & Freshwater Biology
摘要: Numerous studies have investigated the use of plant oil to replace fish oil in the formulation of aqua-feeds; however, it is unknown, in general, whether the previously obtained lipid requirement concentrations based on fish oil require adjustments in view of the replacement of fish oil by plant oil. The present study tested the hypothesis that the appropriate dietary lipid concentration for gibel carp, Carassius auratus gibelio may change after fish oil is partially replaced by corn oil in the diet. Seven isonitrogenous diets were formulated using a mixture of fish oil and corn oil as the lipid source, with lipid concentrations ranging from 10 to 213 g kg(-1). A 70-day growing trial was conducted to evaluate the effects of dietary lipid concentrations on the growth performance, fatty acid changes of the muscle/liver, and mRNA relative expression levels of genes involved in lipogenesis. The results showed that the specific growth rate (SGR) increased markedly with dietary lipid concentrations from 10 to 81 g kg(-1), then decreased and got a no statistical change in the 119 to 213 g kg(-1) groups. In the liver and muscle, 16:0 and 18:0 relative contents exhibited a quadratic regression trend associated with dietary lipid concentrations. MUFA content displayed a logarithmic decrease with increasing dietary lipid concentrations, but a logarithmic increase was observed for LC-PUFA content, with 18:2n-6 and 18:3n-3 contents increasing linearly with dietary lipid concentrations. In the liver, the relative mRNA expression levels of ACC1 and FAS decreased with increasing dietary lipid concentrations. In conclusion, based on a broken-line analysis of the SGR, the recommended dietary lipid concentration for juvenile gibel carp fed with an equal mixture of corn oil and fish oil was found to be 73.2 g kg (1)(,) which represented a 47.9% decrease compared to the value obtained using fish oil as the lipid source. Our results indicate that dietary lipid requirement for freshwater fish species might change markedly when fish oil is replaced by plant oil in the diets. (C) 2014 Elsevier B.V. All rights reserved.
英文摘要: Numerous studies have investigated the use of plant oil to replace fish oil in the formulation of aqua-feeds; however, it is unknown, in general, whether the previously obtained lipid requirement concentrations based on fish oil require adjustments in view of the replacement of fish oil by plant oil. The present study tested the hypothesis that the appropriate dietary lipid concentration for gibel carp, Carassius auratus gibelio may change after fish oil is partially replaced by corn oil in the diet. Seven isonitrogenous diets were formulated using a mixture of fish oil and corn oil as the lipid source, with lipid concentrations ranging from 10 to 213 g kg(-1). A 70-day growing trial was conducted to evaluate the effects of dietary lipid concentrations on the growth performance, fatty acid changes of the muscle/liver, and mRNA relative expression levels of genes involved in lipogenesis. The results showed that the specific growth rate (SGR) increased markedly with dietary lipid concentrations from 10 to 81 g kg(-1), then decreased and got a no statistical change in the 119 to 213 g kg(-1) groups. In the liver and muscle, 16:0 and 18:0 relative contents exhibited a quadratic regression trend associated with dietary lipid concentrations. MUFA content displayed a logarithmic decrease with increasing dietary lipid concentrations, but a logarithmic increase was observed for LC-PUFA content, with 18:2n-6 and 18:3n-3 contents increasing linearly with dietary lipid concentrations. In the liver, the relative mRNA expression levels of ACC1 and FAS decreased with increasing dietary lipid concentrations. In conclusion, based on a broken-line analysis of the SGR, the recommended dietary lipid concentration for juvenile gibel carp fed with an equal mixture of corn oil and fish oil was found to be 73.2 g kg (1)(,) which represented a 47.9% decrease compared to the value obtained using fish oil as the lipid source. Our results indicate that dietary lipid requirement for freshwater fish species might change markedly when fish oil is replaced by plant oil in the diets. (C) 2014 Elsevier B.V. All rights reserved.
关键词[WOS]: MONOUNSATURATED FATTY-ACIDS ; TURBOT SCOPHTHALMUS-MAXIMUS ; RAINBOW-TROUT ; ONCORHYNCHUS-MYKISS ; GROWTH-PERFORMANCE ; FEED-UTILIZATION ; RISK-FACTORS ; METABOLISM ; DISEASE ; LEVEL
语种: 英语
WOS记录号: WOS:000335816400036
ISSN号: 0044-8486
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/20007
Appears in Collections:淡水生态学研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Freshwater Aquaculture Collaborat Innovat Ctr Hub, Wuhan 430070, Peoples R China

Recommended Citation:
Zhou, J. C.; Han, D.; Jin, J. Y.; Xie, S. Q.; Yang, Y. X.; Zhu, X. M..Compared to fish oil alone, a corn and fish oil mixture decreases the lipid requirement of a freshwater fish species, Carassius auratus gibelio,AQUACULTURE,2014,428():272-279
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