Elizondo-González Regina, Quiroz-Guzmán Eduardo, Escobedo-Fregoso Cristina, Magallón-Servín Paola, Peña-Rodríguez Alberto
CONACYT-Centro de Investigaciones Biológicas del Noroeste, La Paz, Baja California Sur, México.
PeerJ. 2018 Mar 5;6:e4459. doi: 10.7717/peerj.4459. eCollection 2018.
Two experimental feeding trials were conducted during four weeks to evaluate the use of in shrimp culture: (1) for wastewater bioremediation, and (2) using different inclusion levels of meal in shrimp feed. In feeding trial 1, shrimp reared under seaweed water exchange in a re-circulation system (SWE) resulted in similar growth and feed utilization as shrimp reared with clean water exchange (CWE). Shrimp under no water exchange (NWE) resulted in significant lower growth and higher feed conversion rate (FCR) compared to the other treatments ( < 0.05). Nitrogen compounds and phosphate in water from SWE and CWE treatments did not present significant differences during the experimental trial ( > 0.05). In feeding trial 2, biomass produced by wastewater bioremediation in SWE treatment were dried and ground to formulate diets containing 0, 1, 2, and 3% meal (0UL, 1UL, 2UL, and 3UL). Shrimp fed the 3 UL diet resulted in a significant ( < 0.05) improvement of growth and FCR, and enhanced whole shrimp lipid and carotenoid content by 30 and 60%, respectively, compared to control diet. Seaweed is suggested as a desirable species for wastewater bioremediation in integrated aquaculture systems, and its meal as a good feed additive for farmed shrimp.
进行了为期四周的两项实验性饲养试验，以评估[具体物质]在对虾养殖中的用途：(1)用于废水生物修复，以及(2)在对虾饲料中使用不同添加水平的[具体物质]粉。在饲养试验1中，在循环系统中以海藻水交换（SWE）方式饲养的对虾，其生长和饲料利用率与以清水交换（CWE）方式饲养的对虾相似。与其他处理相比，无换水（NWE）条件下的对虾生长显著降低，饲料转化率（FCR）更高（P<0.05）。在试验期间，SWE和CWE处理的水中氮化合物和磷酸盐没有显著差异（P>0.05）。在饲养试验2中，将SWE处理中通过废水生物修复产生的[具体物质]生物质干燥并研磨，以配制含0%、1%、2%和3%[具体物质]粉的饲料（0UL、1UL、2UL和3UL）。与对照饲料相比，投喂3UL饲料的对虾生长和FCR有显著（P<0.05）改善，全虾脂质和类胡萝卜素含量分别提高了30%和
