The best source and inclusion level of iron from feed additives for optimizing the production of African catfish was determined while simultaneously evaluating excretion of effluent that can be used to optimally grow plants in aquaponics systems. Using six experimental treatments and a control, the production parameters, proximate composition, hematological indices, nonspecific immunity, tissue mineral composition, apparent digestibility coefficients, and water quality trials were examined. Mineral sources were iron from an organic source, chelated amino acid, and an inorganic source, iron phosphate. No significant differences were observed in production parameters. There were differences in proximate composition. Fish fed FeSO₄ at 30 mg/kg had significantly higher hematocrit levels and red blood cell levels compared with the control, while FeSO₄ 60 had the highest hemoglobin levels. Tissue mineral composition showed significantly higher iron concentrations in the liver of the control compared with all the treatments. FeSO₄ 30 treatment had the highest apparent digestibility coefficient (96%). Iron concentrations in the effluent of the water differed between treatments. Iron from FeSO₄ can improve the hematological profile of catfish compared with the control, and its effluent from culture water has the potential to minimize or reduce the use of nutrient fertilizers in integrated aquaponics systems.

中文翻译：

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评价非洲cat鱼Clarias gariepinus饮食中螯合的铁和硫酸铁以增强铁排泄，以用于综合共生系统

确定了饲料添加剂中铁的最佳来源和最佳铁含量，以优化非洲cat鱼的生产，同时评估了可用于共生系统中植物最佳生长的废水排泄量。使用六种实验处理方法和对照，检查了生产参数，附近成分，血液学指标，非特异性免疫力，组织矿物质成分，表观消化系数和水质试验。矿物质来源是来自有机来源的铁，螯合氨基酸和无机来源的磷酸铁。在生产参数上没有观察到显着差异。附近的成分有所不同。鱼饲料FeSO ₄在30 mg / kg具有明显高于对照组的血细胞比容和红细胞水平，而FeSO ₄ 60具有最高的血红蛋白水平。与所有治疗相比，组织的矿物质成分在对照组的肝脏中显示出明显更高的铁浓度。FeSO ₄ 30处理的表观消化率最高（96％）。两次处理之间，废水中的铁浓度不同。与对照相比，来自FeSO _4的铁可以改善of鱼的血液学特征，其养殖水中的铁有可能将综合性水培系统中养分肥料的使用减至最少或减少。