Đặc điểm dịch tễ bệnh sán lá gan trên đàn trâu nuôi tại một số huyện của tỉnh Lào Cai và thử nghiệm thuốc điều trị

Tóm tắt

The present study aims to evaluate the prevalence of fasciolosis in buffaloe herd at 3 districts in Lao Cai province, fecal samples of 900 fecal samples of buffaloes were collected and tested. The results showed that: through the fecal test, the prevalence of fasciolosis in buffaloes was 40.78%. The prevalence of fasciolosis differed in localities; this prevalence increased gradually in acccordance with age of buffaloes; buffaloes aged over 8 years old mostly infected with fasciolosis (50.68%); The prevalence of buffaloes raising in free grazing method was higher than that in buffaloes raising in semi grazing method (42.92%% compared with 34.23%, respectively); buffaloes infected with fasciolosis in winter-spring season was higher than those in summer-autumn season (46.06% versus 35.90%, respectively). The infection intensity at (+) level accounted for the highest percentage. 150 liver samples of buffaloes were necropsied to collect and identify morphological characteristics, observed the microscopic structure of liver fluke. Results showed that all liver flukes collected were F. gigantica specie. Nitroxinil medicine had high effectiveness in eliminating Fasciolosis and was safe for buffaloes.