Studies On The Determination Of Several Immunity Parameters For Nematodirus Spp Infected Poll Dorset In Inner Mongolia

In this study, surveyed and researched infectionsity and infection rate of Nematodirus spp, which is dominant socials in nemathelminthes of digestive tract in sheep on pasture of Wulanchabu of Inner Mongolia. Declared that the status of Nematodirus spp infection is different from Poll Dorset (experimental group) and Mongolian sheep (control group). Meanwhile, processed eosinophilicgranulocyte count test and measured the expression rate of CD2,CD14 cells by FCM.1. EPG value of lambs of experimental group was high than that of lambs of control group(P<0.001).EPG value of young sheep of experimental group was high than that of young sheep of control group(P<0.05).So the result showed that anti-infection for Nematodirus spp is weaker in Poll Dorset than in Mongolian sheep.2. The expression of CD2 of experimental group(23.32±7.50) was lower than that of control group(39.97±6.02),and have significance(P<0.05).At the same time, according to the age, the expression of CD2 of lambs was lower than that of young sheep,and have significance(P<0.05).The expression of CD14 of experimental group (51.02±16.14)was lower than that of control group(66.44±11.70),and have significance(P<0.05). At the same time ,according to the age ,the expression of CD14 of lambs was lower than that of young sheep , and have significance(P<0.05).The result testified the difference of anti-infection for Nematodirus spp between Poll Dorset and Mongolian sheep.3. Eosinophilic granulocyte count showed that Nematodirus spp infectionsity in digestive tract presents positive correlation with EO value.