Fig. 6
Agarose gel electrophoresis of conventional RT-PCR products from the N gene of IBV H120 strain. Amplified products were separated by electrophoresis on a 1.5 % agarose gel and stained with ethidium bromide. Lane 1 100 bp DNA ladder; lane 2 107 copies/μl; lane 3 106 copies/μl; lane 4 105 copies/μl; lane 5 104 copies/μl; lane 6 103 copies/μl; lane 7 102 copies/μl; lane 8 10 copies/μl. IBV infectious bronchitis virus, RT-PCR reverse transcriptase-polymerase chain reaction