不同储存条件的鱼油对斜带石斑鱼幼鱼生长性能和抗氧化指标的影响
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广东海洋大学水产学院,广东海洋大学水产学院,南海生物资源开发与利用协同创新中心;广东海洋大学水产学院,南海生物资源开发与利用协同创新中心;广东海洋大学水产学院,广东海洋大学水产学院,广东海洋大学水产学院,广东海洋大学水产学院

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公益性行业(农业)科研专项(201003020);广东省教育厅高等学校高层次人才项目粤财教[(2013)246];广东省科技厅公益研究与能力建设项目(2016A020206006)


Effects of fish oil under different stored conditions on growth performance and antioxidant indexes in juvenile grouper (Epinephelus coioides)
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Laboratory of Aquatic Animal Nutrition and Feed,College of Fisheries,Guangdong Ocean University,Laboratory of Aquatic Animal Nutrition and Feed,College of Fisheries,Guangdong Ocean University,South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center;Laboratory of Aquatic Animal Nutrition and Feed,College of Fisheries,Laboratory of Aquatic Animal Nutrition and Feed,College of Fisheries,Guangdong Ocean University,South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center;Laboratory of Aquatic Animal Nutrition and Feed,College of Fisheries,Guangdong Ocean University,Laboratory of Aquatic Animal Nutrition and Feed,College of Fisheries,Guangdong Ocean University,Laboratory of Aquatic Animal Nutrition and Feed,College of Fisheries,Guangdong Ocean University,Laboratory of Aquatic Animal Nutrition and Feed,College of Fisheries,Guangdong Ocean University

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    摘要:

    为研究不同储存时间、温度、抗氧化剂添加量处理的鱼油对斜带石斑鱼生长性能和抗氧化指标的影响,实验鱼油采用如下条件进行氧化处理:储存温度:4℃、环境温度(ambient temperature,AT):(31.5±3.5)℃;抗氧化剂添加量:30 mg/kg(EQ)、300 mg/kg(HEQ);储存时间:45、90和135 d。根据鱼油储存方式的不同共分为14个处理组,分别为TF+EQ(正对照组,新鲜鱼油+EQ)、TF(负对照组,新鲜鱼油未加EQ)、T4℃+45d+EQ、T4℃+45d+HEQ、T4℃+90d+EQ、T4℃+90d+HEQ、T4℃+135d+EQ、T4℃+135d+HEQ、TAT+45d+EQ、TAT+45d+HEQ、TAT+90d+EQ、TAT+90d+HEQ、TAT+135d+EQ、TAT+135d+HEQ,配制等氮等脂饲料。选择健康幼鱼[初重(18±0.02)g]进行实验,养殖8周。结果显示,T4℃+45d+EQ组增重率与TF+EQ组相比无显著差异,但是显著高于TAT+135d+EQ组。T4℃+45d+EQ、T4℃+45d+HEQ、TAT+45d+EQ和TAT+45d+HEQ组饲料系数较低,与TF+EQ、TF组比差异不显著,但显著低于TAT+135d+EQ、TAT+135d+HEQ组。TF+EQ、T4℃+45d+HEQ组细胞结构明显,细胞内脂肪粒大小正常,TAT+135d+EQ和TAT+135d+HEQ组鱼油氧化程度较高,肝细胞中脂肪淤积现象明显。T4℃+135d+EQ、TAT+135d+EQ和TAT+135d+HEQ组的CAT活力显著高于TF+EQ、TF组,SOD和GSH-Px均在TAT+135d+EQ组达到最高且显著高于TF+EQ、TF组。T4℃+45d+EQ、T4℃+45d+HEQ、TAT+45d+EQ和TAT+45d+HEQ组肝脏中MDA含量与TF+EQ、TF组对比无明显差异,但是显著低于其余各组。研究表明,T4℃+45d+EQ、T4℃+45d+HEQ、TAT+45d+EQ和TAT+45d+HEQ组斜带石斑鱼鱼油生长性能和抗氧化指标相对良好,T4℃+45d+EQ和T4℃+45d+HEQ组更优于TAT+45d+EQ和TAT+45d+HEQ组,说明短期、添加抗氧化剂有利于鱼油的保存,4℃比环境温度保存效果更好。

    Abstract:

    In order to study the effects of fish oil under different stored conditions on growth performance and antioxidant indexes in juvenile grouper, Epinephelus coioides. The conditions which the fish oil was oxidized are as follows:stored temperature:4℃, ambient temperature(AT):(31.5±3.5)℃; stored time:45, 90,135 d; supplementations of antioxidant:30 mg/Kg(EQ), 300 mg/Kg(HEQ). According to the different treatment conditions of fish oil, there were 14 groups:TF+EQ[positive control (fresh oil+ EQ)], TF[negative control (fresh oil)], T4℃+45d+EQ, T4℃+45d+HEQ, T4℃+90d+EQ, T4℃+90d+HEQ, T4℃+135d+EQ, T4℃+135d+HEQ, TAT+45d+EQ, TAT+45d+HEQ, TAT+90d+EQ, TAT+90d+HEQ, TAT+135d+EQ, TAT+135d+HEQ. Preparation of nitrogen and other fat diets fed the Epinephelus coioides, which is from juvenile grouper (18±0.02) g to 56 days. There were no significant differences between TF+EQ and T4℃+45d+EQ, but T4℃+45d+EQ was significantly higher than TAT+135d+EQ in WGR. The FCR of T4℃+45d+EQ, T4℃+45d+HEQ, TAT+45d+EQ and TAT+45d+HEQ were relatively low, which had no significant differences with TF+EQ and TF but significantly lower than TAT+135d+EQ and TAT+135d+HEQ (P<0.05). The cell structures of TF+EQ, T4℃+45d+HEQ were clear and obvious and the sizes of these fat droplets in cells were normal, but much more greater fat droplets in TAT+135d+EQ and TAT+135d+HEQ. The CAT of T4℃+135d+EQ, TAT+135d+EQ and TAT+135d+HEQ were significantly higher than TF+EQ and TF. The SOD and GSH-Px were highest inTAT+135d+EQ, which were significantly higher than TF+EQ and TF. The MDA of TF+EQ, TF, T4℃+45d+EQ, T4℃+45d+HEQ, TAT+45d+EQ and TAT+45d+HEQ in liver had no significant differences, but were significantly lower than the other groups. We found the growth performance and antioxidant index in juvenile grouper of T4℃+45d+EQ, T4℃+45d+HEQ, TAT+45d+EQ and TAT+45d+HEQ were relatively good, T4℃+45d+EQ, T4℃+45d+HEQ were better than TAT+45d+EQ and TAT+45d+HEQ. That shows short term storage, adding antioxidants are advantageous to storage of fish oil, besides 4℃ is better than ambient temperature.

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刘迪,迟淑艳,谭北平,董晓慧,杨奇慧,刘泓宇,章双.不同储存条件的鱼油对斜带石斑鱼幼鱼生长性能和抗氧化指标的影响[J].水产学报,2016,40(9):1387~1397

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  • 收稿日期:2016-03-25
  • 最后修改日期:2016-05-31
  • 录用日期:2016-08-28
  • 在线发布日期: 2016-09-20
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