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Articles by K.O. Abdel-Latif
Total Records ( 2 ) for K.O. Abdel-Latif
  O.M. El-Husseiny , A.G. Abdallah and K.O. Abdel-Latif
  An experiment was designed to evaluate the effect of some natural feed additives as alternatives of antibiotic growth promoters for broiler chicks. A total number of 1188 unsexed one-day old Ross 308 chicks were used. Two trials were conducted simultaneously using the same control treatments, a negative control (NC) with no feed additive and a positive control (PC) supplemented with Enramycine (0.025%) as antibiotic growth promoter. In the fist trial, natural mineral clay commercial products of Diatomaceous earth1, at 0.2% (DE0. 2%) and 0.5% (DE0. 5%) and Farmagulator2, at 0.125% (Fg. 125%) and, 0.25% (Fg 0.25%) were compared with the control treatments. In the 2nd trial, pre/pro-biotics commercial products of Diamond VXPC3, 0.075% (DV 0.075%) and 0.10% (DV 0.10%); Tomoko4, 0.05% (Tom 0.05%) and 0.1% (Tom 0.1%); and Primalac5, 0.15% (PL 0.15) were compared with the two control treatments. Diets were formulated to meet nutrient requirements of chicks recommended for Ross 308. Results indicated that performance and immune response of the chicks fed diets containing pro/pre-biotic products were higher than those fed diets containing natural mineral clay products. The positive control or the treated group significantly recorded higher body weight than the negative control, with an exception of Diatomaceous earth treatment. Diatomaceous earth treatments (0.2% or 0.5%) significantly recorded the worst performance and the lowest economical efficiency compared to the negative control or the other treatments. From commercial point of view, biological feed additives of pre/pro-biotics or natural mineral clay as alternative of antibiotic growth promoter are beneficial with exception of Diatomaceous earth. Diets supplemented with biological feed additives enhanced the digestibility coefficients of most nutrients better than the controls, however, DE lowered the digestibility coefficients of most nutrients. It is concluded that performance and immune response of chicks fed on biological feed additives were equivalent or even superior to that of antibiotic growth promoter except for Diatomaceous earth. The tested materials were superior to the negative control when added to the diet in the term of performance.
  A.G. Abdallah , O.M. El-Husseiny and K.O. Abdel-Latif
  A trial was set up to evaluate the influence of some dietary organic mineral supplementations on broiler performance. A total of 1,500 day-old Ross 308 broiler chicks was allotted into 10 groups with 3 replicates of 50 birds each. Two control diets (negative control with inorganic minerals and positive control with organic minerals) were formulated to meet nutrient requirements of chicks recommended for Ross 308. The premix was formulated to contain the requirements of trace elements in combination of either inorganic (sulphate form) or organic form (peptide chelate form). Diets were supplemented with the organic form of zinc, copper, manganese or iron (peptide chelate at the rate of 50% or 100% of the total requirements of the elements recommended for Ross broiler chicks). Production performance was measured during the 35 day trial period and mineral excretion was evaluated at 28 day of age. Results indicated that chicks fed diets containing 100% organic minerals (Zn, Cu, Mn and Fe) had significantly higher body weight, better feed conversion, higher % tibia ash and higher immunity compared with those of inorganic control minerals treatment. Also, when organic minerals were fed as a single element while the rest of minerals were inorganic forms at a level of 100% or 50%, the performance parameters were not significantly different from those resulted from all organic minerals together but were significantly better than those of inorganic control treatment. Fecal mineral excretions from broilers receiving the organic mineral diets were lower than those of inorganic control treatment. No significant effects were observed on muscle characteristics among the different treatments. However, organic mineral diets had a positive effect on economic efficiency. It is concluded that replacing inorganic minerals with organic sources improved bird’s performance and enhanced immune response of chicks.
 
 
 
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