| 饲料中添加植酸酶对大口黑鲈生长和消化酶活性的影响 |
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| 引用本文： | 牛纪锋,吴锐全,谢骏,王广军,关胜军.饲料中添加植酸酶对大口黑鲈生长和消化酶活性的影响[J].大连水产学院学报,2010,25(2):132-136. |
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| 作者姓名： | 牛纪锋 吴锐全 谢骏 王广军 关胜军 |
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| 作者单位： | 1. 中国水产科学研究院,珠江水产研究所,广州,510380;广东海洋大学,水产学院,湛江,524088
2. 中国水产科学研究院,珠江水产研究所,广州,510380 |
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| 基金项目： | 广东省科技计划项目，中国水产科学研究院人才基金 |
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| 摘 要： | 用添加不同水平植酸酶（0、500、1 000、1 500 U/kg）的饲料喂养初始体重为23 g左右的大口黑鲈Micropterus salmoides56 d,研究植酸酶对大口黑鲈生长和消化酶活性的影响。结果显示：饲料中添加1 000U/kg植酸酶能显著促进大口黑鲈的生长,降低饲料系数（P〈0.05）。1 000、1 500 U/kg组大口黑鲈胃蛋白酶活性较对照组分别提高了28.14%和20.09%,差异显著（P〈0.05）;各处理组鱼幽门盲囊中蛋白酶活力与对照组相比差异显著（P〈0.05）,而肠道中蛋白酶活性差异不显著（P〉0.05）。与对照组相比,各处理组鱼肝胰脏和肠淀粉酶活性有所提高,但差异不显著（P〉0.05）;1 000、1 500 U/kg组大口黑鲈的胃淀粉酶活性有所降低,但差异不显著（P〉0.05）。
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| 关 键 词： | 植酸酶 大口黑鲈 生长 蛋白酶 淀粉酶 |
Effects of phytase on growth and digestive enzyme activities in largemouth bass Micropterus salmoides |
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| NIU Ji-feng,WU Rui-quan,XIE Jun,WANG Guang-jun,GUAN Sheng-jun.Effects of phytase on growth and digestive enzyme activities in largemouth bass Micropterus salmoides[J].Journal of Dalian Fisheries University,2010,25(2):132-136. |
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| Authors: | NIU Ji-feng WU Rui-quan XIE Jun WANG Guang-jun GUAN Sheng-jun |
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| Institution: | NIU Ji-feng1,2,WU Rui-quan1,XIE Jun1,WANG Guang-jun1,GUAN Sheng-jun1,2(1.Pearl River Fisheries Research Institute,Chinese Academy of Fishery Sciences,Guangzhou 510380,China,2.College of Fisheries,Guangdong Ocean University,Zhanjiang 524088,China) |
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| Abstract: | A 56 day feeding trail was conducted to evaluate the effects of dietary phytase levels(0,500,1 000,and 1 500 U/kg) on growth and digestive enzyme activities in largemouth bass Micropterus salmoides with initial body weight about 23 g.The results showed that the fish fed the diets containing 1 000 U/kg phytase had significantly better growth and lower feed conversion ratio(P<0.05).The hepatopancreas index was found to decrease with increase in dietary phytase levels,with the minimum in the fish fed the diet ... |
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| Keywords: | phytase largemouth bass growth protease amylase |
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