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小麦胚芽油替代鱼油对半滑舌鳎幼鱼生长、体成分、血清生化指标及脂肪代谢酶的影响 [中文引用][英文引用]

Effects of replacing fish oil with wheat germ oil on growth performance, body composition, serum biochemical indices, and lipid metabolic enzymes in juvenile Cynoglossus semilaevis Günter

作者(英文):HUANG Yu1 2  WANG Jiying2  LI Baoshan2  HAO Tiantian2 3  XIA Bin2  SUN Yongzhi2  WEI Jiali1 2  WANG Shixin2  ZHANG Limin2 
分类号:S963
出版年·卷·期(页码):2015·22·第6期(1195-1208)
DOI: 10.3724/SP.J.1118.2015.15052
-----摘要:-------------------------------------------------------------------------------------------

以初始体重为(3.70&#177;0.01) g的半滑舌鳎(<i>Cynolossus semilaevis </i>G&#252;nter)幼鱼为实验对象, 研究小麦胚芽油替代鱼油对其生长、体成分、血清生化指标及脂肪代谢酶的影响.以添加7.5%的鱼油组为对照组, 用小麦胚芽油分别替代0、20%、40%、60%、80%、100%的鱼油配制成6组等氮等能饲料, 在海水循环养殖系统中进行68 d的养殖实验.结果显示: 饲料中小麦胚芽油替代鱼油对半滑舌鳎幼鱼存活率无显著影响; 随着替代水平的升高, 特定生长率和蛋白质效率降低, 饲料系数升高.各组间脏体比、肝体比和肥满度均无显著性差异.肝脂肪含量随替代水平的升高而升高, 而全鱼脂肪含量降低; 80%和100%替代组全鱼水分含量显著高于对照组(<i>P<</i>0.05).随着饲料中小麦胚芽油水平的升高, 鱼体组织中亚油酸和亚麻酸含量显著升高(<i>P<</i>0.05), EPA和DHA含量显著降低(<i>P<</i>0.05).各组间血清谷丙转氨酶、谷草转氨酶、碱性磷酸酶和溶菌酶活性均无显著性差异(<i>P></i>0.05); 80%和100%替代组甘油三酯和总胆固醇含量显著高于对照组(<i>P<</i>0.05); 血清丙二醛含量呈降低趋势.随着替代水平的升高, 肝脂蛋白酯酶、肝酯酶、总酯酶、脂肪酸合成酶以及肠道脂肪酶活性升高.研究表明, 在本实验条件下, 小麦胚芽油可替代60%的饲料鱼油而不影响半滑舌鳎幼鱼的生长; 小麦胚芽油的添加, 促进了鱼体脂肪代谢, 抑制脂质过氧化作用, 但显著改变了鱼体脂肪酸组成.

-----英文摘要:---------------------------------------------------------------------------------------

A 68-d feeding trial was conducted to investigate the effects of replacing fish oil with dietary wheat germ oilon growth, body composition, serum biochemical indices, and lipid metabolic enzymesin juvenile <i>Cynoglossus semilaevis </i>G&#252;nter [initial body weight, (3.70&#177;0.01) g]. Six isonitrogenous and isoenergetic experimental diets were formulated with 0, 20%, 40%, 60%, 80%, and 100% replacement of the fish oil with wheat germ oil. Survival rate was similar among the fish fed the different diets (<i>P></i>0.05). Specific growth rate and the protein efficiency ratio decreased with increasing replacement level; the 80% and 100% replacement groups were significantly lower than the control group (<i>P<</i>0.05), whereas the feed conversion ratio showed a reverse trend [80% and 100% replacement groups were significantly higher than control group (<i>P<</i>0.05)]. No significant differences were observed in the viscerosomatic index, hepatosomatic index, or condition factor (<i>P></i>0.05). Liver fat content increased with increasing replacement level, whereas whole fish fat content decreased; whole fish water content in the 80% and 100% replacement groups was significantly higher than that in the control group (<i>P<</i>0.05). Muscle and liver C<sub>18: 3n-3</sub> and C<sub>18: 2n-6 </sub>concentrations increased significantly with increasing wheat germ oil level (<i>P<</i>0.05), whereas C<sub>20: 5n-3</sub> and C<sub>22: 6n-3 </sub>concentrations decreased significantly (<i>P<</i>0.05). No differences in serum glutamic-pyruvate transaminase, glutamic-oxaloacetic transaminase, or alkaline phosphatase (<i>P></i>0.05) were detected. Serum triglyceride and total cholesterol levels decreased with increasing replacement level; the 80% and 100% replacement groups were significantly higher than the control group (<i>P<</i>0.05). No significant difference was found in serum lysozyme activity (<i>P></i>0.05), but serum malondialdehyde content decreased. Hepatopancreas lipoprotein lipase, hepatic lipase, fatty acid synthase, and intestinal lipase activities increased with increasing replacement level. These results suggest that wheat germ oil can replace 60% of fish oil without significantly affecting growth of juvenile <i>C. semilaevis</i> G&#252;nter. Wheat germ oil promoted body fat metabolism and inhibited lipid peroxidation but significantly changed fatty acid composition in tissues.

-----参考文献:---------------------------------------------------------------------------------------

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若需在您的论文中引用此文,请按以下格式著录参考文献:
中文著录格式: 黄裕1,2,,王际英2,,李宝山2,,郝甜甜2,3,,夏斌2,,孙永智2,,魏佳丽1,2,,王世信2,,张利民2.小麦胚芽油替代鱼油对半滑舌鳎幼鱼生长、体成分、血清生化指标及脂肪代谢酶的影响.中国水产科学.2015;22(6):1195-1208.
英文著录格式: HUANG,Yu1,2,,WANG,Jiying2,,LI,Baoshan2,,HAO,Tiantian2,3,,XIA,Bin2,,SUN,Yongzhi2,,WEI,Jiali1,2,,WANG,Shixin2,,ZHANG,Limin2.Effects of replacing fish oil with wheat germ oil on growth performance, body composition, serum biochemical indices, and lipid metabolic enzymes in juvenile Cynoglossus semilaevis Günter.No Title Settings.2015;22(6):1195-1208.

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