Salama, F., Hassanein, H., Tonsy, H., Mohamed, A. (2020). Nutritional studies on partial replacement of soybean meal by (Jatropha curcas) meal in Nile tilapia (Oreochromis niloticus ) fingerlings diets. test, 16(1), 1-10. doi: 10.21608/ajbs.2020.70024
Faiza A. Salama; Hanan A.M. Hassanein; Hayam D. Tonsy; Alaa Eldin H. Mohamed. "Nutritional studies on partial replacement of soybean meal by (Jatropha curcas) meal in Nile tilapia (Oreochromis niloticus ) fingerlings diets". test, 16, 1, 2020, 1-10. doi: 10.21608/ajbs.2020.70024
Salama, F., Hassanein, H., Tonsy, H., Mohamed, A. (2020). 'Nutritional studies on partial replacement of soybean meal by (Jatropha curcas) meal in Nile tilapia (Oreochromis niloticus ) fingerlings diets', test, 16(1), pp. 1-10. doi: 10.21608/ajbs.2020.70024
Salama, F., Hassanein, H., Tonsy, H., Mohamed, A. Nutritional studies on partial replacement of soybean meal by (Jatropha curcas) meal in Nile tilapia (Oreochromis niloticus ) fingerlings diets. test, 2020; 16(1): 1-10. doi: 10.21608/ajbs.2020.70024

Nutritional studies on partial replacement of soybean meal by (Jatropha curcas) meal in Nile tilapia (Oreochromis niloticus ) fingerlings diets

African Journal of Biological Sciences
Article 1, Volume 16, Issue 1, 2020, Pages 1-10    PDF (404.76 K)
Document Type: Original Article
DOI: 10.21608/ajbs.2020.70024
Authors
Faiza A. Salama; Hanan A.M. Hassanein; Hayam D. Tonsy* ; Alaa Eldin H. Mohamed
Animal Production Research Institute, By-Product Utilization Research Department, Agricultural Research Center, Dokki, Giza, Egypt.
Abstract
This study was undertaken to investigate the efficiency of partial replacement of soybean meal (SBM) by Jatropha curcas meal treated with lactobacillus acidophilus at rate of 1g/100kg. Four experimental diets were formulated, as iso nitrogenous (30.5 % crude protein) and isocaloric (4543.56Kcal/kg diet), containing 0, 25, 50 and 75% of treated Jatropha meal  (TJM) T1, T2, T3 and T4, respectively and fed to monosex Nile tilapia, (Oreochromis niloticus) fingerlings with average weight (30.43±1.14g/fish).Total of 60 fingerlings were random distributed in four treatments, triplicate groups each with five fish/ aquarium. The experiment period was lasted for 70 days. Growth performance, feed utilization and body compositions as well as the economic evaluation were monitored. The obtained data showed that, higher weight gain and the best feed conversion ratio (FCR), protein efficiency ratios (PER), protein productive value (PPV % ) and  energy utilization (EU%) recorded for fish fed diets (up to 50 %) of treated Jatropha meal were insignificantly different from those fed soybean meal.  It could be concluded that the SBM can be partial replaced with TJM  up to50 % of SBM without any  adverse effects on growth performance or feed utilization of Nile tilapia.
Keywords
Jatropha curcas meal; soybean meal; Lactobacillus acidophilus; Growth performance; Economic Evaluation; Oreochromis niloticus
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