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Research Article Open Access
The present study documents the histopatological effects of gram positive probiotic bacteria Lactobacillus rhamnosus in the freshwater fish Labeo rohita fingerlings challenged with Vibrio cholerae. Fingerlings were infected by V. cholerae were fed with 10-4, 10-5, 10-6 and 10-7 CFU/g of L. rhamnosus supplemented diet for a period of 30 days. Fingerlings without infection were considered as control and diet without probiotic was taken as control infected. The results revealed that the gill, liver and kidney of control infected fingerlings showed pronounced difference in their structure and completely damaged. On the other hand, these tissues in the experimental fingerlings showed less pronounced damage. However, the fingerlings fed with 10-6 CFU/g (diet 3) probiotic feed showed intact structure as in control. Therefore, the present study suggested that L. rhamnosus (at 10-6 CFU/g) can be used as an effective probiotic against V. cholerae for L. rohita fingerlings.
Probiotic, formulated feed, disease, vital tissues, aquaculture, Kidney Infection Diagnosis,Wilson’s Disease