Mycoplasma ovipneumonia : isolation and molecular identification in diseased sheep flock in delta region, Egypt

Abstract EN

Mycoplasma ovipneumoniae (M.

ovipneumoniae) was isolated from nasal swabs obtained from sheep with respiratory manifestations in delta region, Egypt; wherein 31 sheep with different ages were suffer from nasal discharge, cough, pneumonia, keratoconjunctivitis in a flock of sheep containing 134 sheep.

By mycoplasma culture, nine samples were positive from 31examined samples (29%).

M.ovipneumoniae is detected in 33.33% (3 out of 9 isolates of mycoplasma) using PCR with specific primer.

The high percentage of isolation found in more than one-year age group, strains were isolated from the nasal swabs and no detection from ocular swabs.

Isolated M.

ovipneumoni strain subjected to sequencing and was designated as NMD-EG016, which showed a 94.6%16S-23S RNA intergenic spacer sequence identity with three USA strains (M.

ovipneumoniae-2014-2278-10, Mycoplasma.sp.

clone-10OR05 and M.ovipneumoniae-1992-6751-17) and >94.4with standard strain ATCC29419.