Seroprevalence Study of Toxoplasmosis in Free Ranging Chicken in Mid –Euphrates Region in Iraq

  • H. M. Al-Ramahi Coll. of Vet. Med. / Univ. of Babylon


This study was carried out to evaluate the prevalence of toxoplasmosis in free ranging chicken by Latex Agglutination Test (LAT) in Mid – Euphrates region in Iraq. The results showed a high prevalence of T. gondii seropositivity (45.11%), with an increase of seropositivity in sera which obtained from rural regions (48.58%) compared with those obtained from urban (39.28%). Analysis of serological data showed insignificantly (P>0.05) association between  parasite infectivity and gender of chicken (62.2% in males vs. 55.68% in females ) , while there were significant (P<0.05) variation between the seropositivity of chickens aged under 6 months (45.61%) and chickens aged above 6monthes (72.24%).All the mice which used in experimental bioassay were survival until 60 days. The sera which obtained from all inoculated mice were positive to qualitative LAT results and the T.gondii tissue cysts demonstrated in 6 out of 8 mice. There were no oocysts demonstrated in any of the examined fecal samples.