Studies on the pathogenesis of Riemerella anatipestifer diseaseI.the changes of parts of blood marker of artificial-infected ducklings

Tianfu meet ducklings were artificially infected with Ⅰtype Remerella anatipestifer at 20 days of age for study on changes of part of blood marker.The results showed that erythrocyte fragility was increased ,erythrocyte sedimentation became fast,ferrohemoglobin and hematocrit was decreased and the lactate dehydrogenase and glutamic-pyruvic transaminase activities were much higher(P0.01)during the episode period.