Probiotic Supplements Modulates Growth Performances and Muscle Hypertrophy of Minnow, Labeo ariza

摘要

Background and Objective: Growth performances of minnow, Labeo ariza using probiotic with commercial feeds is necessary to develop its muscle growth and culture potentiality. The objective of the present study was to determine the effect of probiotics on the growth rate of L. ariza. Materials and Methods: Four treatments namely Tsub1/sub, Tsub2/sub, Tsub3/sub and Tsub4/sub having three replications of each where Power PS probiotic with commercial feed, Safegut probiotic with commercial feed, VC-7 probiotic with water and only commercial feed, respectively were used. Muscle histochemistry was done to confirm muscle growth in each treatment. One way ANOVA of data were performed for statistical analysis. Results: Mean length, weight, specific growth rate and survival rate were found to be highest in Tsub2/sub followed by Tsub3/sub, Tsub1/sub and Tsub4/sub, respectively. Further, muscle cellularity analysis unveiled both hyperplastic and hypertrophic muscle fiber in all treatments of L. ariza whereas the highest number of hyperplastic (small diameter) fibers were recorded at the post-larval stage of L. ariza in Tsub2/sub followed by Tsub3/sub, Tsub1/sub and Tsub4/sub, respectively. Moreover, it was observed that the average number of hypertrophic (medium and large diameter) muscle fibers was found to be highest at late juvenile stage in Tsub2/sub followed by Tsub3/sub, Tsub1/sub and Tsub4/sub, respectively. Conclusion: Increased growth rate of L. ariza in Tsub2/sub was mostly governed by hypertrophic growth rather than hyperplastic growth which indicated that Safegut probiotic with commercial feed has a potential role in muscle progression of slow growth minnow in aquaculture.