Agarose gel electrophoresis of PCR products of toxA gene of Pasteurella multocida isolates. PCR amplification of toxA gene among the investigated isolates revealed that all isolates were positive for toxA gene with amplified fragments at 864bp. Lane L: 100-1000 bp ladder as molecular size (DNA marker). Lane Pos: Control positive Pasteurella multocida. Lane Neg: Control negative. Lanes from 1 to 11: Positive Pasteurella multocida toxA gene (864 bp).