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Articles by S.A. Tuama
Total Records ( 1 ) for S.A. Tuama
  M.R. EL-Gogary , F.S.A. Ismail , Kh.El. Sherif and S.A. Tuama
  Objective: The objective of this study was to examine the effects of Nutrient Density (ND) and physical form. Materials and Methods: A 5x2 factorial arrangement was used with five dietary nutritional densities and two physical forms (mash and pellets) on production characteristics, hormone function, antioxidant enzyme and fatty acids profile of broilers. Dietary treatments were formulated to contain recommendation of broiler chicks (control), two high levels (H1 and H2) and two low levels (L1 and L2) from ME, crude protein and amino acid (methionine and lysine) densities that were fed from 1-49 days of age. Results: Feeding the low nutritional density diets (L1 and L2) produced significantly better means of LBW, BWG, FI and FCR as compared to other groups. The FI and FCR for birds fed on mash were superior and significant for others fed pellet diets. Low nutritional density was highest concentration of T4, T3 and IGF-1 levels. In addition, there was no significant effect on MDH. However, nutritional density significantly increase SOD and catalase with low levels and high levels of nutritional density compared to the control group. Fatty acids profile of blood plasma in broiler chicks showed inconsistent trend especially when both total unsaturated fatty acids to saturated fatty acids and omega-6 to omega-3 ratios are considered. This difference is a reflection of the higher levels of both dietary levels of crude protein, added vegetable oils, lysine and methionine levels in the diets. Conclusion: The present results indicate that it is possible to reduce low nutritional density without any detrimental impact on growth performance.
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