DHOLAKIA, P. M.KHER, HIRABHAI N.2018-07-042018-07-041983http://krishikosh.egranth.ac.in/handle/1/5810056901Tho present study ims alaed to assess the baoterial load and types of organisms presant In saaien and their relation to semen quality. The study also included antibiotie sensitivity pattern of the isolates in vitro. Totally 45 bulls belonging to (a) Regional A. I. Centre, Rajkot, (b) Central Semen Collection Station, Mehsana, and (c) A. I. Centre, Godhra were studied during the year 1982-83. Bacterial load in the range frota 630 to 14375 organisms per ml for neat semen and in the range from 12300 to 130000 per ml for preputial washings had been encountered. The bacterial load from neat semen was high in summer season followed by monsoon and winter season, while that of preputial washings was high in monsoon season followed by summer and winter season. The semen quality was found fairly good , irrespective of bacterial load of ejaculates. Within the centre, bacterial load of neat semen and preputial washings was higher in buffalo bulls than that of cow bulls and was not varying according to type of sheath.enVERTINARY MICROBIOLOGYA STUDYThesis