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Articles by K.H. El-Kholy
Total Records ( 3 ) for K.H. El-Kholy
  K.H. El-Kholy , K.I. Zeedan , El-Neney , A.M. Battaa , Zeedan , I. Omyma and A.S. Abd El-Hakim
  The study aimed to evaluate the effect of latex of Carica papaya as feed additive and enzymes complex on performance growing rabbits. A control diet was formulated with an estimated proportion of 18% crude protein and 14% crude fibre. Another three diets were formulated supplementing control diet with 0.1, 0.5 or 0.7% papaya latex. One hundred weaned New Zealand White (NZW) rabbits aged 35 days with an average initial weight of 570 ± 8.30 g (mean ± std. error) were used in the present work (25/diet). Daily weight gain and daily feed intake were recorded from weaning up to 91 d of age (fattening period). At this time seven rabbits from each group were slaughtered and immediately lymphoid organs were taken and weighted. Also, blood samples were collected of seven rabbits from each group. Besides, at the end of the experimental period cell mediated immunity was recorded. In the whole fattening period, final body weight at 91 d and feed efficiency values of growing NZW increased linearly by 296.3 ± 49.5 g (P = 0.001) and 0.052 ± 0.007 g/g (P = 0.001), respectively per each increment of 1 unit of papaya latex inclusion. Daily weight gain during the whole fattening period from 35-91 d increased linearly and quadratically (P < 0.031) as dietary concentrations of papaya latex increased obtaining the highest values by using up to 0.16 papaya latex. Spleen and thymus indexes increased linearly by 0.023 ± 0.006 (P = 0.002) and 0.161 ± 0.025 (P = 0.001), respectively per each increment of 1 unit of papaya latex inclusion. The values of WBCs; lymphocytes and total protein increased linearly by 0.95 ± 0.324 (P = 0.007); 8.83 ± 2.03 (P = 0.002) and 2.11 ± 0.338 (P = 0.001), respectively per each increment of 1 unit of papaya latex inclusion. Cell mediated immunity increased linearly and quadratically (P < 0.002) as papaya latex inclusion, being optimized for 0.54% papaya latex inclusion. In conclusion, the addition of 0.7% latex of Carica papaya to the growing NZW rabbit diets, improved growth and immunity capabilities during summer heat stress.
  K.H. El-Kholy , Safaa A. Barakat , W.A. Morsy , K. Abdel-Maboud , M.I. Seif-Elnaser and Mervat N. Ghazal
  Objective: This study was conducted to determine the effect of aqueous Moringa oleifera leaf extracts (AMOLE) on growth performance and carcass characteristics of rabbits. Methodology: A total number of 64 mixed sex growing APRI rabbits aged 5 weeks and weighing 661.8±8.08 g was assigned randomly into four treatment groups to evaluate the effect of aqueous Moringa oleifera leaves extract (AMOLE) added in water. The four experimental groups were as follows: The control group (G1) received basal diet and water without any supplementation, while groups 2, 3 and 4 received basal diet and water supplemented with 30 (G2), 60 (G3) and 90 (G4) mL AMOLE/L drinking water, respectively. The study was lasted for 8 weeks during the growing period, from weaning age (at 5 weeks) to marketing age (at 13 weeks). Results: The results revealed that Moringa leaves extract at its highest levels significantly (p<0.05) increased the final body weight, daily weight gain and improved feed conversion. The effect of Moringa leaves extract on carcass traits was so clear, where supplemented groups showed significant (p<0.05) increased the carcass percentage. Gastrointestinal tract and abdominal fat percentages were decreased (p<0.01 and p<0.05, respectively) by supplementing AMOLE in drinking water. Also, results showed that pathogenic bacteria (Escherichia coli and Clostridium sp.) decreased (p<0.001) by supplementing AMOLE in drinking water. The highest and pronounced increase of net revenue (16.8%) was observed for rabbits received 90 mL AMOLE/L (G4). Conclusion: Addition of AMOLE in drinking water for growing rabbits, enhanced the growth performance and improved the microbial ecology of the gastrointestinal tract with high profitability. From economic point of view 90 mL L–1 Moringa extract is recommended for growing APRI rabbits, which showed the best results.
  K.H. El-Kholy , H.T. Tag El-Deen , A.I. Abd-El-Lateif and Aml I. Mekaouy
  Objective: This study was conducted to compare different forms of selenium (Se) and its effects on metabolic, enzymatic and immunoglobulin serum profiles in growing rabbits. Materials and Methods: Seventy-five mixed sex growing APRI rabbits aged 5 weeks and weighing 662.2±9.07 g was assigned randomly into 5 experimental groups to evaluate the effect of dietary addition of Se in organic and inorganic forms with/or without vitamin E. The five experimental groups were as follows: The first group was fed ad libitum a commercial pelleted diet and kept untreated and served as a control, while the other groups (second, third, fourth and fifth) were fed the same diet but addition of 0.3 mg Se-yeast/kg diet as organic Se form (OSe), 0.3 mg OSe/kg diet plus 200 mg vitamin E/kg, 0.3 mg Se/kg diet as inorganic Se form (ISe) and 0.3 mg ISe/kg diet as Na2SeO3 plus 200 mg vitamin E/kg, respectively. The study was lasted for 8 weeks during the growing period, from weaning age (at 5 weeks) to marketing age (at 13 weeks). Results: The result revealed that addition different forms of Se with/or without vitamin. E caused significant increases in total protein (TP), albumin (Alb) and globulin (Glb) but these increases were still within normal range. No significant differences (p>0.05) were observed in the metabolic profile among treated groups. Insignificant differences were found among all experimental groups including the control one for both liver enzymes (ALT and AST). Also, results showed that there was non-significant difference between treated groups and the control group in serum creatinine (CR) and Urea-N. Different dietary Se source caused to increase values (p≤0.05) of serum IgG and IgM concentrations than that of the control group. Conclusion: It can be concluded that Se addition in either organic or inorganic form, in the diet of growing rabbit, exerted some benefits on the some metabolic and immunologic profiles which in turn may ameliorate weaned stress.
 
 
 
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