Effect of Dietary Probiotic on Survival and Growth of Penaeus indicus Cultured Shrimps

The aim of this research was the study of effect of dietary probiotic in diet on growth rate and survival rate of Penaeus indicus shrimp. For this study, two groups selected as case and control group (each group containing fifteen shrimps) with three replicates for each group and they were studied prospectively. Both groups were equally fed by oral commercial probiotic (Protexin) containing 2x109 microorganisms per gram. During the course of shrimps feeding with probiotic, their growth factors including survival rate and the rate of weight gain were calculated separately in both study groups. To compare the quantitative data of the two groups, independent t-test and to compare qualitative data, Chi-square (χ2) test was used. According to the results of current study, the use of commercial probiotic in P. indicus shrimps was led to a significant increase in weight and growth rate of shrimps in case groups at the end of breeding period.