The effect of different dietary zero-valent iron nanoparticles levels on growth, carcass quality and biochemical indices of common carp (Cyprinus carpio) fingerlings

Abstract

The aim of this study was to assess the effects of different doses of zero-valent iron nanoparticles in the diet of common carp fingerling on growth performance, proximate composition, and biochemical blood parameters. For this purpose, 150 fish with an average initial weight of 6.14 ± 0.10 g were fed on the experimental diets for 8 weeks. The diets contained 0, 50, 100, 150 and 200 mg/kg zero-valent iron nanoparticles. Based on the results, fish were fed the diet supplemented with 150 mg/kg zero-valent iron nanoparticles displayed significant difference in final weight, weight gain, final length, specific growth rate, body weight increase, average daily growth, feed efficiency, protein efficiency ratio and lipid efficiency ratio (P0.05), whereas the fat content of fish fed by 50 mg/kg zero-valent iron nanoparticles was significantly higher compared to other experimental diets (P0.05). Based on the results, 150 mg/kg zero-valent iron nanoparticles in the diet has more influence than larger scales due to the increased surface to volume ratio and can be recommended in diet of common carp fingerlings.

Keywords

• carcass analysis
• common carp
• growth
• plasma indices
• zero-valent iron