淡化条件下生物絮团技术对凡纳滨对虾生长与水质的影响
Effect of biofloc technology (BFT) on Litopenaeus vannamei growth, water quality and culture benefits in freshwater with low salinity condition
p>[目的]为研究淡化条件下生物絮团技术对凡纳滨对虾成虾养殖的影响。</p><p>[方法]在5‰盐度条件下，应用200L水体进行普通养殖（对照组）与生物絮团养殖（BFT组），放养密度90尾/m<sup>3</sup>，并测定两种养殖方式对虾生长指标与水质指标，以及分析养殖经济效益和污染物减排效果。</p><p>[结果]结果显示，经过63d的养殖，BFT组对虾成活率（100%）和生产力（1.32 kg/m<sup>3</sup>）显著高于对照组（<i>P</i><0.05），同时的对虾平均体重（13.20±1.64 g）、特定生长速率（4.26±0.20%/d）和饵料系数（1.09±0.14）等也均优于对照（<i>P</i>>0.05）。</p><p>[结论]研究表明，淡化条件下采用BFT养殖凡纳滨对虾能够保持良好的水质，提高成活率，促进生长，降低饵料系数。</p
p>[Objective]For investigating the effects of biofloc technology (BFT) on commercial culture of adult <i>Litopenaeus vannamei</i>shrimp [Methods] as well as environment in inland freshwater with low salinity, the growth performances of shrimp, water quality parameters, economic and environmental benefits were measured for both BFT and control system, by using 200 liters water with a salinity of 5‰ at a density of 90 shrimp per m<sup>3 </sup>in the present study.</p><p>[Results] Results showed that after a 63-days culture, the survival rate (100%) and productivity (1.32 kg/m<sup>3</sup>) of shrimp from BFT system were significantly higher than those of control system, respectively (<i>P</i><0.05). And other growth performance indices, such as the average individual weight (13.20±1.64 g), special growth rate (4.26±0.20%/d) and feed conversion ratio (1.09±0.14) were also all higher in BFT system compare to control (<i>P</i>>0.05).</p><p>[Conclusions] In conclusion, application of BFT in inland culture of <i>L. vannamei </i>under low salinity condition not only elevated survival rate, improve growth and reduce FCR of shrimp.</p
水产、渔业
凡纳滨对虾淡化生物絮团生长水质
Litopenaeus vannameilow salinitybioflocgrowthwater quality
.淡化条件下生物絮团技术对凡纳滨对虾生长与水质的影响[EB/OL].(2022-05-18)[2025-08-02].https://chinaxiv.org/abs/202205.00115.点此复制
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