首页> 外文会议>International Conference on Chemistry, Chemical Process and Engineering >Utilization of floc from Tilapia (Oreochromis niloticus) farming with biofloc technology as substrate in the culture medium of Daphnia magna
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Utilization of floc from Tilapia (Oreochromis niloticus) farming with biofloc technology as substrate in the culture medium of Daphnia magna

机译:利用罗非鱼(Oreochromis Niloticus)的絮凝物用Biofloc Technology作为Daphnia Magna培养基中的碱

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Organic substances-rich floc produced from the rearing of Tilapia (Oreochromis niloticus) with biofloc technology (BFT) contains enough nutrients which can be utilized as culture medium for Daphnia magna. In this study, the utilization of the floc as a substrate in Daphnia magna culture as one of the sustainable farming system was observed. The fish rearing systems used C/N ratios of 10 and 15 that provide the biofloc in the form of deposition and suspension. Culture of Daphnia was performed in twenty water containers; each was filled with 1 L water and 10 Daphnia magna with egg sac at the temperature of 28±2 °C for 12 h in the dark condition and 12 h in the condition with light. The substrates given for the rearing was the various biofloc and chicken manure as a control. Effect of the substrates on the culture was observed for 14 days through the biofloc profile, water quality parameters (pH, temperature, DO, TAN, nitrite, nitrate and BOD) and the responses of the Daphnia. As results, it can be seen that the utilization of the substrates from the deposition with C/N ratio of 15 gave the best impact on the D. magna with the total individuals of 97, the number of neonates was 75 and the number of females was 17.
机译:从罗非鱼(OREOCHROMIS NILORICUS)的有机物质 - 富含罗非鱼(OREOCHROMIS NILORICUS)的絮状物含有足够的营养素,可用作Daphnia MAGNA的培养基。在该研究中,观察到作为可持续养殖系统之一的Daphnia Magna培养中的作为底物的絮凝物的利用。鱼类饲养系统使用10和15的C / N比,其以沉积和悬浮液的形式提供生物氟化。二十水容器中养班菊的培养;每次填充1升水和10个Daphnia Magna,在28±2°C的温度下,在黑暗状态下为12小时,在含光的条件下12小时。给予饲养的基材是各种生物氟化和鸡粪作为对照。通过生物反射曲线,水质参数(pH,温度,DO,TAN,硝酸盐,硝酸盐和BOD)和Daphnia的反应,观察到培养物对培养物的影响14天。结果可以看出,利用C / N比的沉积利用沉积与15的沉积产生最佳影响,对D. Magna的总体较多,新生儿的数量为75和雌性的数量是17岁。

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