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Articles by Mohamed S. Yusuf
Total Records ( 2 ) for Mohamed S. Yusuf
  A.M. Hanafy , H.A. Khalil , Omnia E. Kilany , Marwa A. Hassan , Mohamed S. Yusuf , Abdelazim Ibrahim , I.M. Fares , A.M. Hassan and P.G. Reddy
  The objective of this study was to determine the optimal level of an Oil Mixture (OM) supplementation in drinking water to enhance the performance of older Japanese quail. Five hundred forty Japanese quail, 40 weeks old, were randomly assigned to 4 experimental groups (90 female and 45 male/group) that received OM at 0, 0.5, 1 and 2 mL/L–1 of drinking water during the experimental period of 42 days. Egg production, egg quality, fertility and hatchability percentages were evaluated. Serum alanine aminotransferase (ALT), aspartate transferase (AST), total protein, albumin, urea, creatinine, total lipids, cholesterol and triglycerides were estimated. Livers were examined for histopathological changes. Results showed that birds received 0.5 mL/L–1 of OM had significantly improved in most studied traits compared to the other treated and control groups. Laying rate, fertility, hatchability percentage, yolk index, internal quality unit and ovarian yellow follicle number were superior in 0.5 group than the other experimental groups. In contrast, birds received 1 or 2 mL had significantly higher concentrations of ALT and AST than birds that received 0.5 mL or control birds. Serum chemistry analysis revealed no significant effects due to treatments on kidney functions. Histopathological findings revealed disruption of normal hepatic architecture in birds that received 1 or 2 mL of OM supplementation compared to 0.5 mL and control birds. Our findings suggest that 0.5 mL/L–1 of OM could be enough and useful in improving productive and physiological performance of laying Japanese quail.
  Samya Hussein Mohammad and Mohamed S. Yusuf
  Biochemical studies are much more important from the nutritional point of view. This study was conducted to evaluate the difference in nutritional qualities of the commercial seafood Venerupis aurea, Callista florida, Cerastoderma glaucum and Thais carinifera from Suez Canal of Egypt. Wet seafood meats consist on average of 78.95, 79.84, 86.94 and 63.89% water and 21.05, 20.16, 13.06 and 36.11% dry matter for them, respectively. The dry seafood meats consist on average of 17.87, 17.24, 9.59 and 30.74% organic matter. The crude protein (54.31, 47.10, 45.08 and 54.62%), carbohydrate (26.12, 32.98, 24.12 and 23.85%), lipid (4.47, 5.42, 4.12 and 6.66%) and ash (15.10, 14.50, 26.72 and 14.87%) contents of them on dry basis were observed, respectively. Protein was the major organic component of investigated species, followed by carbohydrate. The results elucidated that V. aurea, C. florida and T. carinifera are good sources of protein and carbohydrate, C. glaucum and T. carinifera of minerals and all of them have low fat content. Carbohydrate, lipid and ash content of C. glaucum was found to be significantly (p<0.05) lower than the other species. The present study provides not only the information about the proximate composition but also recommended the consumption of these 3 shellfishes species (V. aurea, C. florida and T. carinifera) as good quality seafood products and more suitable for marketing and consumption. In addition, the whole mount, when available with low price, may be used to push meat type producing animals especially poultry and fishes.
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