Soliman et al., M. (2022). Effect of Replacing Soybean Meal by Slaughterhouse Poultry By-Products Meal on Nutrient Digestibility Ecoefficiency and Accumulation of Elements of the Nile Tilapia (Oreochromis niloticus L.) under Aquaponics System Conditions. Egyptian Journal of Aquatic Biology and Fisheries, 26(6), 719-736. doi: 10.21608/ejabf.2022.275466
Mostafa A. M. Soliman et al.. "Effect of Replacing Soybean Meal by Slaughterhouse Poultry By-Products Meal on Nutrient Digestibility Ecoefficiency and Accumulation of Elements of the Nile Tilapia (Oreochromis niloticus L.) under Aquaponics System Conditions". Egyptian Journal of Aquatic Biology and Fisheries, 26, 6, 2022, 719-736. doi: 10.21608/ejabf.2022.275466
Soliman et al., M. (2022). 'Effect of Replacing Soybean Meal by Slaughterhouse Poultry By-Products Meal on Nutrient Digestibility Ecoefficiency and Accumulation of Elements of the Nile Tilapia (Oreochromis niloticus L.) under Aquaponics System Conditions', Egyptian Journal of Aquatic Biology and Fisheries, 26(6), pp. 719-736. doi: 10.21608/ejabf.2022.275466
Soliman et al., M. Effect of Replacing Soybean Meal by Slaughterhouse Poultry By-Products Meal on Nutrient Digestibility Ecoefficiency and Accumulation of Elements of the Nile Tilapia (Oreochromis niloticus L.) under Aquaponics System Conditions. Egyptian Journal of Aquatic Biology and Fisheries, 2022; 26(6): 719-736. doi: 10.21608/ejabf.2022.275466
Effect of Replacing Soybean Meal by Slaughterhouse Poultry By-Products Meal on Nutrient Digestibility Ecoefficiency and Accumulation of Elements of the Nile Tilapia (Oreochromis niloticus L.) under Aquaponics System Conditions
The present study was carried out to investigate the impact of substituting soybean meal with slaughterhouse poultry by-products meal on the Nile tilapia composition, mineral content, apparent digestibility co-efficiency, and basil yield composition under aquaponics system conditions. In an 84-day feeding experiment and 30-day digestibility trial, three isonitrogenous and isocaloric diets (control, SPBM50%, and SPBM100%) were formulated to contain 30% CP. As result, neither the carcass content of moisture nor the CP was affected by the experimental diets. On the other hand, the fish fed SPBM100% content showed high significant ash content, while those fed SPBM50% content recorded high significant EE and GE contents. The differences were notably not significant among the different treatments. The fish group fed SPBM50% diet recorded significantly higher concentrations of minerals than those fed control and SPBM100% diets. The concentration of heavy metals in fish muscles was within the permissible limits for human health protection. The SPBM50% treatment recorded the highest levels in DM, CP, EE and CF contents. No significant difference was observed in ADC of DM, CP, CF, NFE, and GE kcal/g (%) in fish fed the experimental diets. The ADC of EE content of diets was higher in the SPBM100% diet that exhibited significant differences with the control treatment. In conclusion, the SPBM100% has a positive effect on basil composition under aquaponic system conditions as a good source of minerals that are more available, Moreover, it has no impact on the accumulation of heavy elements in fish muscles.
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