Scilight Press

To evaluate the effects of nano-copper on pathogenic bacteria in vivo, 400 fertilized eggs of quail were used; divided into four groups (T₁, T₂, T₃ and T₄) each group of 100 eggs was injected with E. coli bacteria (1 m × 10^-7). Further, groups T₂, T₃ and T₄ were injected with copper nanoparticles at concentrations of 14, 16 and 18 ppm, respectively. Each group was exposed to 38 ℃ in hatcher to receive 30 chicks from the hatched eggs. Significant increase was observed in T₁ for the percentage of embryo mortality and total mortality, in group T₄ for the rate of weight gain and feed conversion efficiency, and in group T₃ for the percentage of hatching, chick weight at hatching and total live body weight. The rate at which feed was consumed was also significantly higher in T₄.