Effect of different levels of red pepper (Caspicum annum) powder on growth factors and survival rate of Zebra fish (Danio rerio)

This study was conducted to investigate the effect of different levels of Red Pepper (Caspicum annum) in the diet of Zebrafish (Danio rerio) on the growth performance and survival. 225 zebra fish (average initial weight 0.02 ± 0.005 g) were randomly divided in 15 aquarium (15L) and triplicate groups. Practical-type diets containing 0(control diet), 2.5, 5, 10 and 15% red pepper were fed to zebra fish for 56 days. At the end of the experiment was evaluated the growth parameters such as weight gain (WG), daily growth rate (DGR), specific growth rate (SGR), percentage body weight gain (% BWG), feed conversion ratio (FCR), condition factor (CF) and survival. Result was showed no significant difference among all treatments on the growth parameters and survival of zebra fish (P>0.05), although the highest contents of final weight and growth performance were observed in fish fed 5% red pepper (P>0.05).