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The Virulence Of Mycoplasma Gallisepticum Infections Using Thai Isolates In Broiler Chickens, Somsak Pakpinyo

The Thai Journal of Veterinary Medicine

Ninety 1-day-old-female broiler chickens were divided into groups as follows. Thirty birds were randomly selected to be bled from jugular vein for MG antibody assay and swabed at choanal cleft for MG DNA using PCR. The remaining birds were divided into 3 groups, 2 replicates in each group and 10 birds in each replicate. Group 1 was a sham negative control. Group 2, 3 received MG Thai isolates and MG S6 strains, respectively. All birds were injected into the left thoracic airsac, with 0.1 ml of broth or MG cultured broth (106 CFU). Each group was raised in a wire …