| 摘要: |
| 在凡纳滨对虾(Litopenaeus vannamei Boon)的种苗培育中,试验使用复合微生物制剂——甘菌露(有益菌在水体中的含量为103～105个/mL)。试验结果如下:试验组成活率达55.7%,而药物组和对照组成活率分别为30.5%,15.5%;把刚刚孵化出的凡纳滨对虾无节幼体培育至仔虾第一期幼体,试验组所需时间为230.9h,分别比药物组和对照组提前42.0h和24.0h;整个育苗过程中,试验组育苗水体的理、化、生物环境明显优于药物组和对 |
| 关键词: 复合微生物制剂 凡纳滨对虾(Litopenaeus vannamei Boon) 成活率 水质 |
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| Effect of microecological compound agent on breeding of Litopenaeus vannamei Boon |
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| Abstract: |
| A microecological compound agent Ganjunlu (GJL for short) was used in junior breeding experiment. The results showed that: the livability of the experiment group was 55.7%, while the medicine group and the control group were 30.5%, 15.5% respectively; the time that the larva grew up to the junior no. 1 stage was 230.9h in the experiment group, that was 42.0h less than that of medicine group; 24.0h shorter that in control group. All the physiochemical and biologicl indicators of the water in experiment group were better than other two groups in: pH value of 7.8～8.2, DO over 7.55 mg/L, NH3-N content of 0.16～0.25 mg/L, and COD of 3.95～5.81 mg/L, these indicators fluctuated in normal range but higher in the early stage. The anaerobe content varied in the range of 2.1×105～1.9×106 cfu/mL and vibro sp. remained below 100 cfu/mL. The shrimp in the experiment group were evener and more vigorous than in other two groups. |
| Key words: Compound microecological agent Litopenaeus vannamei Boon livability water quality |
