3个马群感染马泰勒虫的分子病原学调查

doi:10.16431/j.cnki.1671-7236.2016.04.035

Abstract

Abstract: To explore the prevalence of Theileria equi (T.equi) infection in horse in Guizhou province, the antibody level and 18S rRNA gene were detected from blood samples of Guizhou pony, Southwest horse and Yili horse using competitive ELISA and PCR methods.Giemsa-stained blood smear was prepared to observe T.equi in red blood cells.Intact protozoans of T.equi were observed in red blood cells of horses at Giemsa-stained slide smears with a detection rate of 12.5%.The 18S rRNA gene fragment of T.equi was detected in Guizhou pony, Southwest horse and Yili horse, and the consistent rates with the known nucleotide sequence were 97% to 100%.The PCR result indicated that the positive rates of T.equi in Guizhou pony (76.62%) and Yili horse (73.81%) were similar, which were higher than that in Southwest horse (33.33%).Furthermore, the antibody levels against T.equi in Guizhou pony (24.68%) and Southwest horse (12.12%) were lower than that in Yili horse (31.71%).A weak correlation between the antibody level and the blood physicochemical indexes was calculated from Guizhou pony and Southwest horse, including weak positive correlations with neutrophils numbers, gamma-glutamyl transferase and creatine kinase levels, and weak negative correlations with the numbers of red blood cell, white blood cell, platelet and lymphocyte and contents of hemoglobin.It suggested that a higher proportion of T.equi infection present in three herds.

Key words: Guizhou pony; Southwest horse; Yili horse; Theileria equi; antibody; 18S rRNA

CLC Number:

Q939.9

XUE Yan, DENG Xian-you, WANG Jia-fu, RAN Xue-qin, TIAN Song-jun, WEI Xiao-hong. Investigation of Molecular Etiology of Theileria equi Infection in Three Herds[J]. , 2016, 43(4): 1086-1091.

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Investigation of Molecular Etiology of Theileria equi Infection in Three Herds

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