Effects of totally replacing dietary fish oil by linseed oil or soybean oil on juvenile hybrid sturgeon, Acipenser baeri BrandtfxA.schrenckii Brandto

文献类型： 外文期刊

第一作者： Liu, C.

作者： Liu, C.;Wang, J.;Ma, Z.;Li, T.;Xing, W.;Jiang, N.;Li, W.;Luo, L.;Li, C.

作者机构：

关键词： fish oil replacement;hybrid sturgeon (Acipenser schrenckii BrandtfxA;baeri Brandto);linseed oil;postprandial lipid metabolite;soybean oil

期刊名称：AQUACULTURE NUTRITION （ 影响因子：3.497； 五年影响因子：3.78 ）

ISSN： 1353-5773

年卷期： 2018 年 24 卷 1 期

页码：

收录情况： SCI

摘要： The growth performance, body composition, fillet fatty acid content, serum hepatic enzymes and postprandial changes in serum lipid metabolism of hybrid sturgeon (70.8 +/- 0.5g) were investigated to determine the effects of total replacement of 80 gkg(-1) fish oil (diet A) with linseed oil (diet B) and soybean oil (diet C), respectively. No significant differences in weight gain rate and specific growth ratio were observed among all fish groups (p>.05). Diet A fish group had the highest, but diet B fish group had the lowest feed intake (p<.05). Feed efficiency of fish fed diet A was significantly lower than the other two fish groups (p<.05). Fish fed diet A had the lowest fillet and liver lipid contents (p<.05). Serum lactate dehydrogenase, alanine aminotransferase and aspartate aminotransferase activities of fish fed diet A were significantly lower than those of fish fed diets B and C (p<.05). The contents of linoleic acid (C18:2n6) and linolenic acid (C18:3n3) in fillets showed a significantly positive linear correlation with the diets. Serum glucose and non-esterified fatty acid were just affected by the time point (p<.05). The lipid source, time point and interaction of both factors had significant effects on serum triglyceride, high-density lipoprotein cholesterol and low-density lipoprotein cholesterol (p<.05). Serum total cholesterol was only affected by interaction of time point and lipid source (p<.05), and ketone body was not affected by lipid source, time point or interaction of both factors (p>.05). In summary, total replacement of fish oil with linseed oil or soybean oil had no significant adverse effects on hybrid sturgeon growth during 84-day period, and linoleic acid and linolenic acid in fillet were modified by dietary treatments.

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