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Articles by Nafisa A. Abd El-Azeem
Total Records ( 2 ) for Nafisa A. Abd El-Azeem
  H.M.A. Hassan , M.M. El-Moniary , Y. Hamouda , Eman F. El-Daly , Amani W. Youssef and Nafisa A. Abd El-Azeem
  A growth experiment was conducted to study productive performance, carcass characteristics and some blood parameters of broiler chicks fed corn-soybean meal diets with 3 levels of Moringa oleifera leaves meal (MOLM) under heat stress conditions. Two hundred and eighty one day old chicks were randomly assigned to four treatments. The 1st treatment fed a commercial basal diet as a control, while, the other treatments 2, 3 and 4 were fed the commercial basal diet supplemented with MOLM (0.1, 0.2 and 0.3%, respectively). The results showed that body weight gain was increased significantly (p<0.05) as the level of MOLM increase; also, the feed intake had the same trend. Feed conversion ratio was recorded better values as the level of MOLM increase. The levels of MOLM had no significant effect on carcass relative weight, liver, gizzard, heart, abdominal fat, breast and thigh. Haemoglobin (Hb) was increased with increase the level of MOLM, while, haematocrit (Ht) values did not affect. Heterophil/Lymphocyte (H/L) ratio was decreased by increase the level of MOLM. Plasma total protein increased significantly (p<0.05) with increase the level of MOLM. Albumin did not affect while, globulin increased significantly (p<0.05) with increase the level of MOLM. AST decreased significantly (p<0.05) while, ALT did not affect with adding MOLM levels. Thyroid hormones (T3 and T4) were significantly (p<0.05) increased with increase MOLM level while, T3/T4 ratio did not affect. It could be concluded that addition of Moringa oleifera leaves meal up to 0.3% improved broiler performance, physiological parameters and enhanced the ability to resist heat stress conditions of broilers fed corn-soybean meal diet.
  Nafisa A. Abd El-Azeem , Eman F. El-Daly , H.M.A. Hassan , Amani W. Youssef and M.A. Mohamed
  An experiment was conducted to study the effect of feeding different commercial preparations of direct-fed microbials (DFM) used as growth promoters on weight and histology of immune related organs (bursa, thymus and spleen) in broilers. Two hundred unsexed 10 days old Cobb broiler chicks were individually weighed and divided into 4 groups (5 replicates of 10 chicks, each) and fed 4 different experimental diets. A mixture of Enterococcus faecium (Protexin®, DFM1), a mixture of Bacillus subtilis (Clostat®, DFM2) and Saccharomyces cerevisiae yeast cells with its fermentation metabolites (Diamond®, DFM3) were supplemented to broiler diets and compared with the basal diet which served as control. Bursa, thymus and spleen were taken from birds at 36 days of age. The results showed significant (P<0.01) increase in spleen and bursa weight (relative to live body weight) in birds fed DFM supplemented diets compared with those fed the control diet of no supplement. Addition of DFM enhanced the activity of bursal follicles and may improve the bursa activity and caused improvement in thymus and spleen structure compared with the control. In conclusion, DFM supplemental levels have stimulated some histological change in the immune related organs which may result in improvement of chick immunity.
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