Effect of adding Jerusalem artichoke (Helianthus tuberosus L.) and Sprout germinated barley as a prebiotics in diets of common carp (Cyprinus Carpio L.) fingerling on growth performance and food utilization

Abstract

Abstract Various levels of Jerusalem Artichoke Tubers (Helianthus tuberosus L.) (JAT) powder and Sprout Germinated Barley (SGB) powder were added to diets of young common carp fish (Cyprinus carpio L.) with a content of 30% of crude protein in this study to detect their effect on growth performance, for a period of ten weeks. It's a Weight Gain (WG), Daily Weight Gain (DWG), Relative Growth Rate (RGR) and Specific Growth Rate (SGR), and feed utilization, it's a Feed Conversion Rate (FCR), Feed Efficiency Rate (FER) and Protein Efficiency Ratio (PER). The (JAT) powder was added at the rate of 2.5, 5 and 7.5 g/kg, for the first, second, and third treatments, respectively, and adding (SGB) powder 2.5, 5 and 7.5 g/kg for the fourth, fifth and sixth treatments, respectively, then control without addition, The third treatment 7.5 g/kg JAT outperformed significantly p<0.05 for all parameters over all treatments, and this significant p<0.05 superiority involved the sixth 7.5 gm/km SGB treatment for two criteria were WG and RGR, and did not differ significantly p<0.05 from the rest of the trial treatments, except for the control group which decreased significantly p<0.05 for all treatments and for all criteria. The feed utilization criteria significantly p<0.05 outperformed both the third treatment, 7.5 gm/kg JAT and the sixth treatment, 7.5 gm/kg, for the terms FER and PER. And criteria FCR, the same treatments recorded the best ratios for feed transfer significantly p<0.05 on all transactions, while the worst one was the control significantly p<0.05 for all treatments and all criteria.