بررسی شیوع سرمی آلودگی تحت کلینیکی آنتریت هموراژیک در مزارع بوقلمون گوشتی تجاری ایران به روش الایزا

Hemorrhagic enteritis (he) is a contagious disease in turkeys caused by avian adenovirus typeii which leads to enteric disease and immune suppression and finally decrease flockperformance. this study was carried out to examine he seroprevalence within some commercialturkey flocks by elisa technique. a total of 420 serum samples were collected from 21 meattypeturkey flocks of 12 provinces of iran and were examined serologically by elisa test(synbiotics proflock- he, usa). results showed that 76.2% of flocks were positive, 9.5% weresuspect and 14.3% were negative based on arithmetic mean titers (amt) and interpretation ofkit. from 420 serum samples, 292 sera (69.5%) were positive, 51 (12.2%) were suspect and 77(18.3%) were negative. there were a significant positive correlation between he titers withfcr and mortality rate (p < 0.05) and significant reverse correlation with average of weight gain(p < 0.05). this study indicated that seroprevalence of he is high in iranian meat-type turkeyflocks. however more studies are need for isolation and identification of virus in flock.