| Abstract: |
The present study was carried out in three experiments at Fish Research Center and Nutrition and Clinical Nutrition Department, Faculty of Veterinary Medicine, Zagazig University, to investigate :-1- The effect of partial replacement of yellow corn by dried citrus pulp as unconventional feed stuff with and without addition of Bio-Buds as a probiotic in the diets of Tilapia Nilotica fingerlings and its effect on growth performance, body composition,2- The effect of sugar-beet pulp as alternative ingredient for yellow corn with and without addition of Bio-Mos as a prebiotic in the diets of Tilapia Nilotica fingerlings and its effect on growth performance, body composition, nutrient digestibility, eco3- The effect of addition of different natural growth promoters (NGPs) such as essential oils, organic acids, and synbiotic in compare with antibiotic in the diets of Tilapia Nilotica fingerlings and its effect on growth performance, body composition, nutExperiment I:-This experiment was performed to investigate the effect of partial replacement of yellow corn by dried citrus pulp as unconventional feed stuff with or without addition of Bio-Buds as a probiotic in the diets of Tilapia Nilotica fingerlings and its effectGroup 1 fed on control diet without Bio-Buds, group 2 fed on control diet with Bio-Buds, group 3 fed on diet contained 5% citrus pulp without Bio-Buds group 4 fed on diet contained 5% citrus pulp with Bio-Buds, group 5 fed on diet contained 10% citrus pulResults can be summarized into the following:-1- Fish group fed on diet contained 5% dried citrus pulp with Bio-buds achieved a significant higher growth performance, feed utilization and feed conversion ratio followed by control group with Bio-buds in comparison with other fish groups.2- Protein efficiency ratio (PER), protein retention and protein productive value (PPV) were higher in the fish group which fed on diet contained 5% dried citrus pulp with Bio-buds followed by control group with Bio-buds in comparison with other fish grou3- The highest values of condition factor were recorded in fish group fed on diet contained 5% dried citrus pulp with Bio-buds
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