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Egyptian Journal of Aquatic Biology and Fisheries
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Ghanem, M., Hassan, A., Ahmed, M. (2014). Effect of different concentrations of Ethylenediaminetetraacetic Acid (EDTA) ongrowth performance and physiological aspects of Nile Tilapia, Oreochromis niloticus Fingerlings.. Egyptian Journal of Aquatic Biology and Fisheries, 18(4), 21-36. doi: 10.21608/ejabf.2014.2226
Mohamed Ghanem; Ahmed Hassan; Mohamed Ahmed. "Effect of different concentrations of Ethylenediaminetetraacetic Acid (EDTA) ongrowth performance and physiological aspects of Nile Tilapia, Oreochromis niloticus Fingerlings.". Egyptian Journal of Aquatic Biology and Fisheries, 18, 4, 2014, 21-36. doi: 10.21608/ejabf.2014.2226
Ghanem, M., Hassan, A., Ahmed, M. (2014). 'Effect of different concentrations of Ethylenediaminetetraacetic Acid (EDTA) ongrowth performance and physiological aspects of Nile Tilapia, Oreochromis niloticus Fingerlings.', Egyptian Journal of Aquatic Biology and Fisheries, 18(4), pp. 21-36. doi: 10.21608/ejabf.2014.2226
Ghanem, M., Hassan, A., Ahmed, M. Effect of different concentrations of Ethylenediaminetetraacetic Acid (EDTA) ongrowth performance and physiological aspects of Nile Tilapia, Oreochromis niloticus Fingerlings.. Egyptian Journal of Aquatic Biology and Fisheries, 2014; 18(4): 21-36. doi: 10.21608/ejabf.2014.2226

Effect of different concentrations of Ethylenediaminetetraacetic Acid (EDTA) ongrowth performance and physiological aspects of Nile Tilapia, Oreochromis niloticus Fingerlings.

Article 3, Volume 18, Issue 4, December 2014, Page 21-36  XML PDF (3.94 MB)
Document Type: Original Article
DOI: 10.21608/ejabf.2014.2226
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Authors
Mohamed Ghanem1; Ahmed Hassan1; Mohamed Ahmed2
1Marine Biology branch, Zoology Dept., Faculty of Science, Al-Azhar University, Cairo, Egypt
2Fish diseases and management Dept., Faculty of veterinary Medicine, Cairo University, Egypt.
Abstract
The present study deals with the effect of different concentrations of EDTA (0, 0.1 & 0.3 g EDTA /L) on the growth in length, weight, survival rate, growth performance and physiological characters of the Nile tilapia, Oreochromis niloticus
fingerlings reared in glass aquaria. The improvement of fish fingerlings development obtained by EDTA is dose-dependent. Fingerlings obtained from high concentration of EDTA (0.3 g EDTA /L) showed higher increase in length, weight and survival rate than those of low concentration (0.1 g EDTA /L) and control. The total weight gain,
average daily gain and specific growth rate of O. niloticus, fingerlings improved with the high concentration of EDTA compared with the low concentration and control. The best feed conversion ratio (1.82) was recorded in the fish fingerlings exposed to 0.3 g EDTA/L compared with the control (2.1) and fingerlings exposed to 0.1 g
EDTA/L (2.44). Biochemical analysis indicated that, EDTA in high concentrations are useful additives for isolated or/ and reducing dangerous substances from different fish tissues and surrounding media, thus improved the physiological responses. 
Keywords
EDTA; Growth performance; physiological aspects; Oreochromis niloticus
Main Subjects
Fisheries
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