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3.1. Materials:<br />

3.1.1. Sample:<br />

3.MATERIAL AND METHODS<br />

A total of 295 samples obtained from livers, spleen, heart of<br />

freshly died broiler, one day old chicks and layers in Dakahlia<br />

province.<br />

A total of 53 children, male and female urine samples were<br />

obtained from human private laboratories.<br />

3.1.2. Media used:<br />

3.1.2.1. Selective enrichment broth:<br />

Selenite F broth (Edward and Ewing, 1972)<br />

Bacteriological peptone 5.0 g/l<br />

Lactose 4.0 g/l<br />

Sodium phosphate 10.0 g/l<br />

3.1.2.2. Selective culture media:<br />

3.1.2.2.1. Nutrient Agar (Oxoid)<br />

Lab-lemco powder 1.0 g/l<br />

Yeast extract 2.0 g/l<br />

Peptone 2.0 g/l<br />

Sodium chloride 5.0 g/l<br />

Agar<br />

pH 7.4<br />

15.0 g/l<br />

3.1.2.2.2. Blood Agar (Oxoid)<br />

Lab-lemco, powder 10.0 g/l<br />

Peptone 10.0 g/l<br />

29

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