| 光合细菌对养殖水质及凡纳滨对虾抗病力的影响 |
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| 引用本文： | 陆家昌,黄翔鹄,李活,方锐林.光合细菌对养殖水质及凡纳滨对虾抗病力的影响[J].广东海洋大学学报,2009,29(6):87-91. |
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| 作者姓名： | 陆家昌 黄翔鹄 李活 方锐林 |
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| 作者单位： | 1. 广东海洋大学水产学院,广东,湛江,524025
2. 茂名市金阳热带海珍养殖有限公司,广东,茂名,525000 |
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| 基金项目： | 广东省自然科学基金，广东省科技计划项目 |
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| 摘 要： | 在凡纳滨对虾养殖环境中人工引入不同浓度的光合细菌,监测氨氮、亚硝酸氮、化学需氧量的变化,15d后测定凡纳滨对虾的AKP、POD、PO、SOD、抗菌、溶菌活力,以及不同光合细菌浓度下凡纳滨对虾的成活率与体重增长率,研究光合细菌对水质和凡纳滨对虾抗病力的影响。结果表明,引入光合细菌可显著降低水体化学需氧量、氨氮含量,并抑制亚硝酸盐氮的产生,提高凡纳滨对虾的抗病力。当光合细菌投放浓度为3×103/mL时,水体中化学需氧量、氨态氮、亚硝酸盐氮含量的均值分别比对照组降低31.59%、43.42%、52.20%,差异显著(P<0.05);对虾的AKP、POD、PO、SOD、抗菌、溶菌活力分别比照组提高31.92%、72.29%、55.56%、31.61%、39.07%、69.51%,差异显著(P<0.05);成活率,体重增长率分别比对照组提高18.67%、34.03%,差异显著(P<0.05)。
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| 关 键 词： | 光合细菌 水质调控 凡纳滨对虾 抗病力 |
Effect of Photosynthetic Bacteria on Water Quality and Anti-disease Ability of Litopenaeus vannamei |
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| LU Jia-chang,HUANG Xiang-hu,LI Huo,FANG Rui-lin.Effect of Photosynthetic Bacteria on Water Quality and Anti-disease Ability of Litopenaeus vannamei[J].Journal of Zhanjiang Ocean University,2009,29(6):87-91. |
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| Authors: | LU Jia-chang HUANG Xiang-hu LI Huo FANG Rui-lin |
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| Abstract: | Different concentrations of Photosynthetic Bacteria were added into culture water of Litopenaeus vannamei and the concentration of NH3-N, NO2-N and COD were determined. After 15 days' culture, the survival rate, the weight-gaining rate, the activity of AKP (alkaline phosphatase), POD (Phenoloxidase), PO (Phenoloxidase), SOD (superoxide dismutase), the anti-bacteria and bacteriolysis of the shrimp were measured. The results of comparative test between treatment and control groups showed that Photosynthetic Bacteria in appropriate density (3×103 /mL) could significantly (P<0.05) improve the water quality and anti-disease ability of L. vannamei: the average concentration of NH3-N,NO2-N and COD decreased respectively by 43.42%, 52.20% and 31.59%; the survival rate and the weight-gaining rate increased respectively by 18.67% and 34.03%; the activity of anti-bacterial, bacteriolysis, AKP, PO, POD and SOD increased respectively by 39.07%, 69.51%, 31.92%, 55.56%, 72.29% and 31.61%. |
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| Keywords: | photosynthetic bacteria water-quality controll Litopenaeus vannamei anti-disease ability |
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