| 不同浓度的枯草芽孢杆菌对罗非鱼鱼苗的养殖水体水质及其抗病力的影响 |
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| 引用本文： | 刘慧玲,黄翔鹄,李长玲,李瑞伟,罗远飘.不同浓度的枯草芽孢杆菌对罗非鱼鱼苗的养殖水体水质及其抗病力的影响[J].水产养殖,2009,30(10):5-9. |
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| 作者姓名： | 刘慧玲 黄翔鹄 李长玲 李瑞伟 罗远飘 |
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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. 茂名市茂南三高渔业发展有限公司,广东,茂名,525000 |
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| 基金项目： | 2007年公益行业(农业)科研专项，广东海洋大学自然科学研究项目 |
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| 摘 要： | 罗非鱼鱼苗的养殖水体中引入不同浓度的枯草芽孢杆菌,检测水体的水质指标、鱼苗体内与免疫相关酶的酶活力、鱼苗的生长率和成活率。实验结束时,引入1.0×10^4 cfu/mL枯草芽孢杆菌实验组,氨氮和亚硝酸盐氮含量分别为2.72 mg/L、0.15 mg/L,显著低于对照组（P〈0.05）;AKP活力、抗菌活力分别达249.9 U/g prot、0.59μg/mL,显著高于对照组（P〈0.05）;鱼苗成活率也显著高于对照组（P〈0.05）,比对照组提高了11.0%。结果显示：适合浓度的枯草芽孢杆菌能有效地改善鱼苗养殖水体的水质,提高机体免疫力和成活率。
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| 关 键 词： | 枯草芽孢杆菌 罗非鱼 水质 抗病力 |
Effect of Different Concentrations of Bacillus substilis on Water Quality and Disease Resistence of Tilapia fry |
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| Liu Huiling,Huang Xiangwu,Li Changling,Li Ruiwei,Luo Yuanpiao.Effect of Different Concentrations of Bacillus substilis on Water Quality and Disease Resistence of Tilapia fry[J].Journal of Aquaculture,2009,30(10):5-9. |
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| Authors: | Liu Huiling Huang Xiangwu Li Changling Li Ruiwei Luo Yuanpiao |
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| Institution: | Liu Huiling, Huang Xiangwu, Li Changling, Li Ruiwei, Luo Yuanpiao(1. Fisheries College, Guangdong Ocean University, Zhanjiang 524025,China; 2. Maoming Jinyang tropical Fish Cultivation CO., Ltd. Maoming 525000, China) |
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| Abstract: | The paper studied the effect of the related immune enzyme activity,the growth rate and the survival rate of tilapia fry under different concentrations of Bacillus substilis on water quality of tilapia fry.The results showed that the experiment group that introduced B.substilis at the concentration of 1.0×10^4 cfu/mL had best efficiency.The ammonia-N,NO2--N were 2.72、0.15 mg/L,respectively,and significantly lower than other groups.The activity of AKP,the antibacterial activity were 249.9 U/g prot、0.59 μg/mL,respectively,and significantly higher than the control group.The survival rate were significantly higher than the control group,and raised by 11%. |
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| Keywords: | Bacillus substilis tilapia water quality disease resistence |
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