Asian Science Citation Index is committed to provide an authoritative, trusted and significant information by the coverage of the most important and influential journals to meet the needs of the global scientific community.  
ASCI Database
308-Lasani Town,
Sargodha Road,
Faisalabad, Pakistan
Fax: +92-41-8815544
Contact Via Web
Suggest a Journal
Articles by S.A. Nasef
Total Records ( 2 ) for S.A. Nasef
  Wafaa A. Abd El-Ghany , M.H. Awaad , S.A. Nasef and A.F. Gaber
  This study was designed to examine the effect of using sodium butyrate encapsulated in palm fat in comparison with enrofloxacin on Salmonella Enteritidis (SE) infection in broiler chickens. Two hundred, day-old broiler chicks were allocated into 5 equal groups (n = 50). Group 1 was kept without challenge or treatment (blank control), Group 2 was fed on sodium butyrate, Group 3 was challenged and treated with enrofloxacin, Group 4 was challenged and treated with sodium butyrate and Group 5 was only challenged (positive control). Challenged groups were orally inoculated with 0.3 mL (1.5×108 SE/mL/chick) at the 2nd day of age. Enrofloxacin was given at the 3rd day of age in water (10 mg kg–1 b.wt.) for 5 successive days; however, sodium butyrate was added in doses of 1.0, 0.5 and 0.25 kg t–1 for starter, grower and finisher ration respectively from day till 5 weeks old. The results revealed no mortalities and decrease in the severity of signs and lesions in treated groups than positive control one. At the 4th week of age, sodium butyrate supplement gave significant (p≤0.05) improvement in body weight, weight gain and feed conversion than others. The re-isolation rate and enumeration of SE were lower in sodium butyrate and enrofloxacin treatments than positive control. In conclusion, sodium butyrate as an acidifier could be used as an environmentally friendly supplement when compared with enrofloxacin for treatment of SE infection in broiler chickens as it could reduce the disease picture severity, improve performance variables and decrease the intestinal colonization.
  M.H.H. Awaad , Wafaa A. Abd El-Ghany , S.A. Nasef , Medhat S. El-Halawany , Faten F. Mohamed and Ahmed F. Gaber
  Objectives: The efficacy of microencapsulated Na-butyrate (NaB) supplementation for reducing Salmonella enteritidis (S. enteritidis) infection was investigated. Methodology: One day old broiler chicks (n = 200) were allotted into 4 equal groups. At 2nd day of age, birds of groups 3 and 4 were challenged by crop gavage with 5x108 CFU mL–1 of S. enteritidis. Groups 2 and 3 were supplemented with NaB diet while 1 and 4 were fed on a plain ration without treatment. Scanning Electron Microscopy (SEM) of re-isolated S. enteritidis of challenged NaB treated broilers revealed broken cells with morphological changes in comparison with untreated challenged group, however, Transmission Electron Microscopy (TEM) showed several lipids like bodies that barely detected in untreated group. Results: Results from Polymerase Chain Reaction (PCR) analyses revealed that S. enteritidis strain from untreated challenged control harbored virulence genes invA, stn and pefA with incidence rate of 100%. While, NaB supplementation resulted in detection of 100% of invA gene and only 66.6% of pefA and stn genes. Gut integrity of NaB supplemented groups showed significant (p≤0.05) increase in villi height and villus height: crypt depth ratio and had positive effect in maintenance of healthy intestinal epithelial cells. Conclusion: NaB supplement is effective in reducing S. enteritidis in chickens.
Copyright   |   Desclaimer   |    Privacy Policy   |   Browsers   |   Accessibility