The effects of Selenium Nanoparticles and Stocking Density on Growth Performance of Common Carp (Cyprinus Carpio) | ||
| Egyptian Journal for Aquaculture | ||
| Volume 13, Issue 4, December 2023, Pages 18-30 PDF (591.1 K) | ||
| Document Type: Research article | ||
| DOI: 10.21608/eja.2025.263027.1091 | ||
| Author | ||
| Eman Antar Sabry* | ||
| Egypt. Agriculture research center.central lab of aquaculture research.abasa | ||
| Abstract | ||
| There is a pressing need to design nutritionally balanced diets tailored to the specific requirements of fish cultured under varying aquaculture conditions in Egypt. Selenium (Se) is an essential trace element for animals, including fish. Nano-Se is more stable and soluble. The present study was conducted to investigate the effects of selenium nanoparticle supplementation and stocking density on growth performance traits, feed utilization and chemical body composition, of Common carp (Cyprinus carpio). Fish were randomly allocated according to a 2×5 factorial experimental design, consisting of two stocking densities (15 and 30 fish per aquarium) each combined with five dietary levels of Nano-selenium supplementation (0, 1, 3, 5, and 7 mg/g), resulting in 10 treatments with three replicates for each. Nano-selenium supplementation significantly improved (P < 0.01) fish growth performance, including final body weight, weight gain, and specific growth rate (SGR). The maximum fish growth, highest feed intake, and the lowest feed conversion ratio (FCR) were obtained when fish were fed a diet containing 3, 5 mg Nano-Se/Kg. Moreover, Nano-Se supplementation reduced the stress of stocking densities. Nano-selenium levels and stocking density significantly affected fish body composition and survival rate. Optimal improvements in protein content and survival rate were observed at 3–5 mg/kg Nano-Se, particularly under low stocking density. It could be concluded that Nano-Se supplementation, 3, 5 mg Nano-Se/Kg, enhanced the growth, feed utilization, and body composition of Common Carp fish. | ||
| Keywords | ||
| Common Carp (Cyprinus carpio); selenium nanoparticles; stocking densities; growth performance; feed utilization; body composition; Blood Component | ||
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