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Egyptian Journal of Aquatic Biology and Fisheries
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Nada, A., El-Shaikh, K., Youssef, Z. (2006). EVALUATION OF THE NUTRITIONAL VALUE OF THE CRAYFISH, PROCAMBARUS CLARKH (GIRARD, 1852), COLLECTED FROM THE RIVER NILE, EGYPT. Egyptian Journal of Aquatic Biology and Fisheries, 10(1), 99-110. doi: 10.21608/ejabf.2006.1832
Ahmed Nada; Kama El-Shaikh; Zakaria Youssef. "EVALUATION OF THE NUTRITIONAL VALUE OF THE CRAYFISH, PROCAMBARUS CLARKH (GIRARD, 1852), COLLECTED FROM THE RIVER NILE, EGYPT". Egyptian Journal of Aquatic Biology and Fisheries, 10, 1, 2006, 99-110. doi: 10.21608/ejabf.2006.1832
Nada, A., El-Shaikh, K., Youssef, Z. (2006). 'EVALUATION OF THE NUTRITIONAL VALUE OF THE CRAYFISH, PROCAMBARUS CLARKH (GIRARD, 1852), COLLECTED FROM THE RIVER NILE, EGYPT', Egyptian Journal of Aquatic Biology and Fisheries, 10(1), pp. 99-110. doi: 10.21608/ejabf.2006.1832
Nada, A., El-Shaikh, K., Youssef, Z. EVALUATION OF THE NUTRITIONAL VALUE OF THE CRAYFISH, PROCAMBARUS CLARKH (GIRARD, 1852), COLLECTED FROM THE RIVER NILE, EGYPT. Egyptian Journal of Aquatic Biology and Fisheries, 2006; 10(1): 99-110. doi: 10.21608/ejabf.2006.1832

EVALUATION OF THE NUTRITIONAL VALUE OF THE CRAYFISH, PROCAMBARUS CLARKH (GIRARD, 1852), COLLECTED FROM THE RIVER NILE, EGYPT

Article 6, Volume 10, Issue 1, January 2006, Page 99-110  XML PDF (11 K)
Document Type: Original Article
DOI: 10.21608/ejabf.2006.1832
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Authors
Ahmed Nada1; Kama El-Shaikh2; Zakaria Youssef2
1National Center of Radiation and Technology, Atomic Energy Authority, Nasr City
2Zoology Department, Faculty of Science, Helwan University, Cairo, Egypt
Abstract
The present study was conducted to evaluate the nutritional value of the crayfish, Procambarus clarkii since it represents a popular food in many parts of the world, though it is not yet exploited in Egypt. Samples of P. clarkii were collected from four different sites on the River Nile (I:Gezyrat El-Warrak, II: Mania! Sheeha, HI: Al-Hawamdia & IV: Helwan)
during the peried from May to September 2002. Muscles (edible part) were isolated, digested and analyzed for the metals
content by using the atomic absorption spectrophotometer (AAS). Total protein, total lipids, glycogen and amino acids contents as well as caloric value of muscles were determined.The concentrations of Ca, Cu, Fe, Mg, Mn and Zn in muscles of crayfish in control site (because it has a low factories effluent) were 459.6,4.36, 48.9,1842, 2.51 and 14.2 ug metal/g wet tissue, respectively. Total protein, total lipids, glycogen and amino acids/g muscle tissue were 33.6, 3.8, 0.661,
518 mg, respectively. The caloric value of such muscles was 176.6 Cal/mg tissue. The amino acids in muscles comprised 10 essential and 7nonessential amino acids. Variable levels of such parameters were reported in the three examined sites.Relative to allowable limits for rnetals in foods, there was no sufficient accumulation of any metal in crayfish muscles, indicating that no significant health hazards would result from consumption cf such muscles
of the animal.
Keywords
Procamharus clarkii; Crayfish; Biochemical analysis; Nutritional Value; Metals
Main Subjects
Fisheries
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