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Present study was conducted to investigate the incidence of Buxtonella sulcata infection in Jaffrabadi buffaloes presented at Teaching Veterinary Clinical Complex (TVCC), Veterinary College, Junagadh during January 2013 to December 2014. A total of 206 rectal faecal samples of buffaloes was collected and processed in laboratory. The χ2 test was used to statistically analyse the significant differences (P≤0.05) among variables observed. The overall incidence of ciliated protozoa infection was 35.0%. A significant difference (P<0.001) of B. sulcata infection was recorded in diarrhoeic (54.7%) and non-diarrhoeic (14.0%) animals. However, the intensity of infection was recorded higher in diarrhoeic than non-diarrhoeic animals. Moreover, a significantly (P<0.001) higher incidence of other gastrointestinal (GI) parasites were recorded in non-diarrhoeic (30.0%) animals with very low intensity of infection. Only small number of diarrhoeic animals showed B. sulcata infection along with other parasite i.e., mix infection (5.7%) whereas, no mix infections were recorded in non-diarrhoeic animals. The incidence of B. sulcata infection in older animals (33.3%) was higher than young (18.2%) and adult (33.3%) animals. Similarly, incidence of B. sulcata infection in winter was recorded highest (43.8%) followed by monsoon (31.0%) and summer (31.0%). Statistically, no significant difference (P>0.05) was observed among the different season and age groups of animals. The present study demonstrated the higher incidence of B. sulcata infection in Jaffrabadi buffalo which is having problem of frequent diarrhoea.