Research Article

Isolation and Identification of Some Probiotic Bacteria and Their Potential Role in Improving Immune Response and Resistance of Nile Tilapia (Oreochromis niloticus) in Comparison with a Commercial Product

Figure 1

Gel electrophoresis of the PCR product of the isolated probiotic strain, where lane1, molecular weight ladder; lane 2, a positive control; lane 3, a negative control; and lane 4 (S1), the specific DNA product of about 1485 base pairs (bp) amplified from the isolate.