الفهرس 
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Abstract
Fifty samples of each air, drinking water, feed and litter were collected from five poultry farms located at Alexandria Province and examined bacteriologically and mycologically to evaluate their sanitary quality.
A. BACTERIOLOGICAL EXAMINATION OF EXAMINE!) SAMPLES:
1. The bacteriological examination of the air samples revealed the isolation of different species of pathogenic and potentially pathogenic bacteria including Staphylococcus aureus (4.55%), Staphylococcus epidermidis (3.03%), Streptococcusfaecalis (10.61 %), Salmonella spp. (4.55%), E. coli (21.21 %), Arizona spp. (3.03%), Kiebsiella spp. (13.64%), Proteus rettergi (1.52%), Proteus mirabilis (1.52%), Pseudomonas spp. (4.55%), Serratia spp. (4.55%), Shigella flexneri (1.52%), Provedancia spp. (3.03%), Citrobacter spp. (6.06%), Acromobacter spp. (7.58 %), Alcaligenesfaecalis (4.55%), Alkalescens dispar (4.55%) and Edwardsiella spp. (1.52%).
The bacteriological examination of the drinking water samples revealed the isolation of Staphylococcus aureus (8.74%), Staphylococcus epidermidis (5.46%), Streptococcus faecalis (15.3%), Salmonella spp. (2.73%), E. coli (10.93 %), Arizona spp. (0.55 %), Kiebsiella spp. (4.37%), Proteus morganhi (3.28%), Proteus rettergi (2.73 %), Proteus mirabilis (2.73 %), Pseudomonas spp. (13.66%), Serratia spp. (1.09%), Shigella flexneri (3.83 %),