| 用豆油代替鱼油对虹鳟生长、非特异性免疫和组织酶活性的影响 |
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| 引用本文： | 徐奇友,许红,李婵,杨萍,王常安.用豆油代替鱼油对虹鳟生长、非特异性免疫和组织酶活性的影响[J].大连水产学院学报,2009,24(2):104-108. |
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| 作者姓名： | 徐奇友 许红 李婵 杨萍 王常安 |
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| 作者单位： | 1. 中国水产科学研究院,黑龙江水产研究所,黑龙江,哈尔滨150070
2. 大连水产学院,生命科学与技术学院,辽宁,大连,116023 |
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| 基金项目： | 国家公益性行业科研专项基金，黑水研基本科研专项基金 |
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| 摘 要： | 研究了用豆油代替鱼油对体重为（33．75±0．28）g虹鳟Oncorhynchus mykiss生长性能、免疫和组织酶活性的影响。试验共分4个处理，每个处理设3个重复，每个重复放80尾鱼，分别添加18％（质量分数，下同）鱼油（G1组）、6％鱼油＋12％豆油（G2组）、3％鱼油＋15％豆油（G3组）和18％豆油（G4组）。试验期间水温为12．5～16．5℃，溶解氧为7．8～10mg／L，每天饲喂2次，试验共进行8周。结果表明：豆油部分或全部代替鱼油对虹鳟试验末体重、体长、肥满度、特定生长率、饵料系数和日增重未产生显著影响（P〉0．05），G2组试验末体重、特定生长率、日增重分别较对照组（G1组）提高7．99％、11．85％和13．89％，饵料系数下降12．82％。与G1组相比，G3组鱼血浆和肝脏中碱性磷酸酶活性显著提高（P〈0．05），肝脏和肾脏中酸性磷酸酶的活性显著提高（P〈0．01）；G4组鱼肝脏中溶菌酶活性显著降低（P〈0．05），G2、G3组也呈下降趋势，但差异不显著；各试验组鱼鳃中丙二醛活性显著（P〈0．05）或极显著降低（P〈0．05）；G3组鱼肝脏中过氧化氢酶（CAT）活性显著升高（P〈0．05），12；3、G4组鱼肾脏中CAT也显著升高（P〈0．05）。可见，用豆油可以部分代替鱼油用于虹鳟生产，但用豆油完全代替鱼油会影响虹鳟鱼体的免疫力。试验表明，用添加质量分数为6％鱼油＋12％豆油的饲料饲养虹鳟时，虹鳟的生产性能最好。
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| 关 键 词： | 豆油 鱼油 虹鳟 生长 免疫 |
Effects of replacement of fish oil with soybean oil on growth performance,immunity and tissue enzyme activity of rainbow trout Oncorhynchus mykiss |
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| XU Qi-you,XU Hong,LI Chan,YANG Ping,WANG Chang-an.Effects of replacement of fish oil with soybean oil on growth performance,immunity and tissue enzyme activity of rainbow trout Oncorhynchus mykiss[J].Journal of Dalian Fisheries University,2009,24(2):104-108. |
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| Authors: | XU Qi-you XU Hong LI Chan YANG Ping WANG Chang-an |
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| Institution: | XU Qi-you1,XU Hong1,LI Chan2,YANG Ping1,WANG Chang-an1(1.Heilongjiang River Fisheries Institute,Chinese Academy of Fishery Sciences,Harbin 150070,China,2.School of Life Science , Technology,Dalian Fisheries Univ.,Dalian 116023,China) |
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| Abstract: | Effects of replacement of fish oil with soybean oil on growth performance and immunity in rainbow trout Oncorhynchus mykiss were studied. The fish was fed the diets containing 18% fish oil（ G1 ）, 6% fish oil ＋ 12% soy oil（G2）, 3% fish oil ＋ 15% soy oil（G3） and 18% soy oil（G4） with triplication for 8 weeks at water temperature from 12.5 - 16.5 ℃, and dissolved oxygen content from 7.8 - 10 mg/L. There were no significant differences in final body weight, final body length, condition factor, special growth rate （SGR）, feed conversion ratio （FCR） and daily gain in the treatment groups（ P 〉 0.05）. The fish in the group G2 had 7.99% higher final body weight, 11.85% higher SGR, 13.89% daily weight gain and 12.82% lower FCR than the fish in the group G1 did. There were significantly higher plasma AKP, liver AKP（ P 〈 0.05 ）and liver ACP, kidney ACP（ P 〈 0.01 ）in G3 than those in G1. Liver lysozyme was found to decrease in G4 （ P 〈 0.05 ）, G2 and G3 （ P 〉 0.05 ）. Lower gill MDA was observed （P 〈0.05 or P 〈0.01 ）in G2, G3 and G4, and higher liver CAT in G3 （P 〈0.05）and lower kidney CAT in G3, and G4 （ P 〈 0.05 ）, indicating that growth performance was not influenced by replacement of fish oil with soy oil, but the immunity decreased; the best growth performance was observed in the group of 6% fish oil ＋ 12% soy oil. |
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| Keywords: | soy oil fish oil rainbow trout growth performance immunity |
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