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Research Journal of Microbiology
Year: 2008  |  Volume: 3  |  Issue: 3  |  Page No.: 198 - 203

Effect of Commercial Probiotics on Large Scale Culture of Black Tiger Shrimp Penaeus monodon (Fabricius)

R. Lakshmanan and P. Soundarapandian    

Abstract: The survival rate and growth of both the ponds (High and low dosages of probiotics), which was applied with probiotics, was higher than that of control ponds. Concentrations of nitrite, nitrate and phosphate were higher in control ponds than the probiotics treated ponds. Chlorophyll a was observed maximum in probiotics treated ponds rather than control ponds. The bacterial population decreased at the end of culture in both treated and control ponds but the load of vibrio sp. when compared with THB in the control pond was not showing a significant decrease. Black gill, white gut and fungal diseases were predominant in control ponds. But these diseases were meager in probiotics treated ponds. The general conclusion obtained from the present study is that the probiotics plays a vital role in growth, survival and disease resistance of the animal by maintaining good water quality parameters through out the culture period. It is clear from the microbial load data that vibrio sp. is dominant only in the control ponds.

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