【作者】 熊哲； 刘波； 周群兰； 孙存鑫； 张慧敏； 杨震飞； 单凡； 刘博；

【Author】 XIONG Zhe;LIU Bo;SUN Cunxin;ZHANG Huimin;YANG Zhenfei;SHAN Fan;LIU Bo;Wuxi Fisheries College, Nanjing Agricultural University;Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences;

【机构】 南京农业大学无锡渔业学院； 中国水产科学研究院淡水渔业研究中心农业部淡水渔业和种质资源利用重点实验室；

【摘要】 本试验旨在探讨同脂肪源饲料中补充维生素E(VE)对罗氏沼虾生长性能、肌肉质构和血液生化指标的影响,试验配制豆油、菜籽油和鱼油三种脂肪源,且添加200mg/kg正常水平VE和600mg/kg高水平VE的6组等氮等能饲料,分别为豆油+200mg/kg VE组、豆油+600mg/kgVE组、菜籽油+200mg/kgVE组、菜籽油+600mg/kgVE组、鱼油+200mg/kgVE组、鱼油+600mg/kgVE组,并分别记为S1、S2、R1、R2、F1、F2,饲养幼虾8周。结果表明:(1)生长方面,饵料系数S1组显著低于R1(P<0.05);S1组增重率、特定生长率显著高于F1(P<0.05)。(2)肉质方面,弹性F2组显著高于R2组(P<0.05);胶黏性F1组显著高于S1和R1组(P<0.05);耐咀性R1组显著高于S1(P<0.05)。(3)血液生化方面,谷草转氨酶活性R2组显著低于R1组(P<0.05),F2组显著低于F1组(P<0.05);总胆固醇含量F1组显著低于R1组(P<0.05)。因此,本实验表明罗氏沼虾最适脂肪源为豆油,在鱼油和菜籽油饲料中添加600mg/kg VE能改善罗氏沼虾肉质并影响生长。更多还原

【Abstract】 Three kinds of fat sources, soybean oil, rapeseed oil and fish oil, were prepared. Six groups of isoenergetic diets were added with 200 mg/kg normal VE and 600 mg/kg high VE, respectively. G/kg VE group, soybean oil+600 mg/kg VE group, rapeseed oil+200 mg/kg VE group, rapeseed oil+600 mg/kg VE group, fish oil+200 mg/kg VE group, fish oil+600 mg/kg VE group, and were recorded as S1, S2, R1, R2, F1, F2 respectively. The young shrimps were fed for 8 weeks. The results showed that:(1) The growth of S1 group was significantly lower than that of R1 group(P < 0.05), and the weight gain rate and specific growth rate of S1 group were significantly higher than that of F1 group(P < 0.05).(2) Flesh quality, elasticity F2 group was significantly higher than R2 group(P < 0.05); adhesive F1 group was significantly higher than S1 and R1 group(P < 0.05); mouth proof R1 group was significantly higher than S1 group(P < 0.05).(3) In blood biochemistry, the activity of glutamic oxaloacetic aminotransferase in R2 group was significantly lower than that in R1 group(P < 0.05), that in F2 group was significantly lower than that in F1 group(P < 0.05), and that of total cholesterol in F1 group was significantly lower than that in R1 group(P < 0.05). Therefore, soybean oil was the most suitable fat source for M. rosenbergii. Adding 600 mg/kg VE to fish oil and rapeseed oil feed could improve the meat quality and affect the growth of M. rosenbergii.更多还原