| 饲料中添加谷氨酰胺二肽对哲罗鱼仔鱼肠道抗氧化活性及消化吸收能力的影响 |
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| 引用本文： | 徐奇友,王常安,许红,朱青,尹家胜.饲料中添加谷氨酰胺二肽对哲罗鱼仔鱼肠道抗氧化活性及消化吸收能力的影响[J].中国水产科学,2010,17(2). |
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| 作者姓名： | 徐奇友 王常安 许红 朱青 尹家胜 |
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| 作者单位： | 中国水产科学研究院,黑龙江水产研究所,黑龙江,哈尔滨,150070 |
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| 基金项目： | 国家公益性行业科研专项，黑龙江省自然科学基金资助项目，黑龙江省博士后基金资助项目，黑龙江水产研究所基本科研专项资助项目 |
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| 摘 要： | 以刚上浮哲罗鱼(Hucho taimen)仔鱼(体质量0.11～0.12g)为研究对象,在实验饲料中添加5个水平的谷氨酰胺二肽(Ala-Gln),各处理饲料中Ala-Gln添加量分别为0%(对照组)、0.125%、0.25%、0.50%、0.75%和1.0%,每处理3个重复,每重复1000尾仔鱼。实验期间水温7～10℃,溶氧保持高于7.8mg/L,实验共进行8周。结果表明,添加Ala-Gln能够显著提高哲罗鱼仔鱼肠谷氨酰胺(Gln)、谷氨酸含量(P0.05),提高肠脂肪酶活性和Na+,K+-ATPase活性(P0.05),同时,丙二醛(MDA)含量显著(P0.05)或极显著降低(P0.01)。结论认为,饵料中适量添加Ala-Gln可以提高哲罗鱼仔鱼肠道Gln和谷氨酸含量,以及消化酶活性和抗氧化能力。
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| 关 键 词： | 谷氨酰胺二肽 哲罗鱼 仔鱼 肠道 酶活性 抗氧化性能 |
| 修稿时间： | 2010/3/30 0:00:00 |
Effects of glutamine dipeptide on intestine antioxidant,abilities of digestion and absorption of Hucho taimen larvae |
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| XU Qiyou,WANG Changan,XU Hong,ZHU Qing,YIN Jiasheng.Effects of glutamine dipeptide on intestine antioxidant,abilities of digestion and absorption of Hucho taimen larvae[J].Journal of Fishery Sciences of China,2010,17(2). |
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| Authors: | XU Qiyou WANG Changan XU Hong ZHU Qing YIN Jiasheng |
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| Institution: | XU Qiyou,WANG Changan,XU Hong,ZHU Qing,YIN Jiasheng (Heilongjiang River Fisheries Research Institute,Chinese Academy of Fishery Sciences,Harbin 150070,China) |
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| Abstract: | Effects of Ala-Gln on intestine glutamine content, antioxidant and abilities of digestion and absorption of Hucho taimen larvae were studied. Six experimental diets containing different levels of Ala-Gln (with the Revels of 0%,0.125%,0.25%,0.50%,0.75% and 1.0% respectively)were randomly assigned to triplicate groups of 1 000 fish for 8 weeks. Water temperature was at 7-10 ℃, and dissolved oxygen value was maintained higher than 7.8 mg/L. Glntamine and glutamic acid contents of intestine increased significantly by adding Ala-Gln (P<0.05) .Lipase content and Na~+, K~+-ATPase activities in intestine increased significantly (P<0.05), and MDA activity decreased significantly (P<0.05) or extremely significantly (P<0.01). The experiment showed that Gln and glutamic acid contents in intestine of Hucho taimen larvae can be improved, and enzyme activity and antioxidant ability in Hucho taimen larvae can also be improved by adding Ala-Gln in the feeds. |
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| Keywords: | glutamine Hucho taimen larva intestine enzyme activity antioxidant |
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