Effect of Partially Replacing Corn Meal by Wet Date on Growth Performance in Nile Tilapia (Oreochromis niloticus) Fingerlings, Diets Supplemented with Digestarom®


A 3-month randomized factorial design 4 × 2 (four levels 0, 15, 30, and 45%) of wet Date (WD), two levels (0 and 0.03%) of Digestarom? (D) and three replicates. The trial was conducted in twenty four glass aquaria. Ten fingerlings of Nile tilapia were placed in each aquarium with an average weight 15.40±0.3 g fish. Fish were fed twice daily (six days a week) at a rate of 3% of body weight. The results revealed that, mean final weight (g/fish), SGR (%/day), feed conversion ratio, PPV and PER, were significantly (p ≤ 0.05) affected by the levels of WD and level of D. And the best diet achieved which containing 30% WD supplemented with 0.03% D. From the above results and the economic information of these studies it can be concluded that, diet containing 30% of WD with 0.03% D exhibited the highest net profit and would seem to be the most desirable level of WD and D in the system studied.

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Gaber, M. , Labib, E. , Omar, E. , Zaki, M. and Nour, A. (2014) Effect of Partially Replacing Corn Meal by Wet Date on Growth Performance in Nile Tilapia (Oreochromis niloticus) Fingerlings, Diets Supplemented with Digestarom®. Journal of Geoscience and Environment Protection, 2, 60-67. doi: 10.4236/gep.2014.22010.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] Abd El-Maksoud, A. M. S., Abouul-Fotouh, G. E., Allam, S. M., & Abou Zied, R. M. (1999). Effect of Marjoram Leaves (Majorana hortensis) as a Feed Additive on the Performance of Nile Tilapia (Oreochromis niloticus) Fingerlings. Egyptian Journal of Nutrition and Feeds, 1, 39-47.
[2] AOAC (2000). Association of Official Analytical Chemists, Official Methods of Analysis (17th ed.) Washington DC.
[3] Azaza, M. S., Mensi, F., Kammoun, W., Abd Elouaheb, A., Brini, B., & Kraiem, M. (2008). Nutritional Evaluation of Waste Date Fruit as Partial Substitute for Soybean Meal in Practical Diets of Juvenile Nile Tilapia, (Oreochromis niloticus). Aquaculture Nutrition Published Online: 2 June 2008, Journal Compilation © ; 2009 Blackwell Publishing.
[4] Belal, I. E. H., & Al-Owafeir, M. A. (2009). Incorporating Date Pits (Phoenix dactylifera) and Their Sprouts in Semi-Purified Diets for Nile Tilapia (Oreochromis niloticus L.). Journal of the World Aquaculture Society, 35, 452-459. http://dx.doi.org/10.1111/j.1749-7345.2004.tb00110.x
[5] Belal, I. E. H. (2008). Evaluating Fungi-Degraded Date Pits as a Feed Ingredient for Nile Tilapia (Oreochromis niloticus L). Aquaculture Nutrition, 14, 445-452. http://dx.doi.org/10.1111/j.1365-2095.2007.00548.x
[6] Carnevali, O., De Vivo, L., Sulpizio, R., Gioacchin, G., Olivotto, I., Silvi, S., & Cresci, A. (2006). Growth Improvement by Probiotic European Sea Bass Juveniles (Dicentrarchus labrax, L.), with Particular Attention to IGF-1, Myostatin and Cortisol Gene Expression. Aquaculture, 258, 430-438. http://dx.doi.org/10.1016/j.aquaculture.2006.04.025
[7] Cho, C. Y., & Kaushik, S. J. (1985). Effect of Protein Intake on Metabolizable and Net Energy Values of Fish Diets. In: C. B. Cowey, A. M. Mackie, & J. G. Bell (Eds.), Nutrition and Feeding in Fish (pp. 95-117). London: Academic Press.
[8] Diab, A. S., EL-Nagar, O. G., & Abd-El-Hady, M. Y. (2002). Evaluation of Nigella sativa L. (Black Seeds; Baraka), Allium sativum (Garlic) & Biogen as a Feed Additives on Growth Performance of (Oreochromis niloticus) Fingerlings. Vetrenary Medical Journal, Suez Canal University, 2, 745-753.
[9] Eid, A., & Mohamed, K. A. (2008). Effect of Using Probiotic as Growth Promoters in Commercial Diets for Monosex Nile Tilapia (Oreochromis niloticus) Fingerlings. 8th International Symposium on Tilapia in Egypt.
[10] El-Dakar, A. Y., Shalaby, S. M., & Saoud, I. P. (2007). Assessing the Use of Dietary Probiotic/Prebiotic as Enhancer of Spine Foot Rabbit Fish (Singanus rivulatus) Survival and Growth. Aquaculture Nutrition, 13, 407-412. http://dx.doi.org/10.1111/j.1365-2095.2007.00491.x
[11] El-Sayed, A. F. M., Hamza, W. R., & Al-Darmaki, M. (2006). Evaluation of Date Pits as a Feed Ingredient for Juvenile and Adult Nile tilapia (Oreochromis niloticus) Reared in a Recirculating System. Proceeding of 7th International Symposium on Tilapia aquaculture.
[12] El-Shazly, K., Ibrahim, I., & Karam, H. (1963). Nutritional Value of Date Seeds for Sheep. Journal of Animal Science, 22, 894-897.
[13] FAO (Food and Agriculture Organization of the United Nations) (2004). Fishery Statistics 2002. Rome: Capture Production, FAO.
[14] Golterman, H. L., Clymo R. S., & Ohnstad, M. A. M. (1978). Methods of Physical and Chemical Analysis of Fresh Waters (214 p). Oxford: Blackwell Scientific Publications.
[15] Khattab, Y. A. E., Shalaby, A. M. E., Saffa, M. S., El-Marakby, H., & Rizl Alla, E. H. (2004). The Physiological Changes and Growth Performance of the Nile Tilapia (O. niloticus) after Feeding with Biogen® as Growth Promoter. Egypt Journal of Aquatic Biology and Fisheries, 8, 145-158.
[16] Mehrim, A. I. M. (2001). Effect of Some Chemical Pollutants on Growth Performance, Feed and Nutrient Utilization of Nile Tilapia (O. niloticus) (215 p). M.Sc. Thesis, Saba Basha: Alexandria University.
[17] Mohamed, K. A., Abdel Fattah, B., & Eid, A. M. S. (2007). Evaluation of Using Some Feed Additives on Growth Performance and Feed Utilization of Monosex Nile Tilapia (O. niloticus) Fingerlings. Agricultural Research Journal, Suez Canal University, 7, 49-54.
[18] NRC (1993). Nutrient Requirements of Warm Water Fishes and Shellfishes. Washington DC: National Academy Press.
[19] Osman, M. F., Alhadrami, G. A., & Ben Zayed, A. A. (2001). Sulfuric Acid Treated Date Pits as a Dietary Ingredient in Nile Tilapia (Oreochromis niloticus) Diets. Egyptian Journal of Nutrition and Feeds, 4, 753-754.
[20] Salem, M. E. M. (2008). Studies on Some Medicinal Plants as Mycotoxins in Fish Diets. M.Sc. Department of Animal Production, Thesis Submitted to the Faculty of Agriculture University Kafr Elsheikh University.
[21] Santiago, C. B., & Lovell, R. T. (1988). Amino Acid Requirements for Growth of Nile Tilapia. Journal of Nutrition, 188, 1540-1546.
[22] Shiau, S. Y., & Lin, S. E. (1993). Effect of Supplemental Dietary Chromium and Vanadium on the Utilization of Different Carohydrates in Tilapia Oreochromis niloticus × Oreochromis aureus. Aquaculture, 110, 321-330. http://dx.doi.org/10.1016/0044-8486(93)90379-D
[23] Statistical Analysis System (1993). SAS/STAT User’s Guide Release 6.03 Edition. Cary, North Carolina, USA: SAS Institute Inc.
[24] Stickney, R. R. (1979). Principles of Warm Water Aquaculture. New York: Wiley International Science.
[25] Xie, S., Cui, Y., Yang, Y., & Liu, J. (1997). Energy Budget of Nile Tilapia, Oreochromis niloticus in Relation to Ration Size. Aquaculture, 154, 57-68. http://dx.doi.org/10.1016/S0044-8486(97)00039-2
[26] Yousif, O. M., Osman, M. F., & Alhadrami, G. A. (1996). Evaluation of Date and Date Pits as Dietary Ingredients in Tilapia (Oreochromis aureus) Diets Differing in Protein Sources. Bioresearch Technology, 57, 81-85. http://dx.doi.org/10.1016/0960-8524(96)00054-5
[27] Zar, J. H. (1986). Biostatistician Analysis. New Jersey, USA: Prentice Hall, Englewood Cliffs.

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