Effect of Probiotic Dietary on Growth Performances and Feed Utilization of Cyprinus carpio Fingerlings

Abstract

The present study was carried out to evaluate the influence of dietary supplementation of probiotic bacteria on the growth performance and biochemical composition of Cyprinus carpio fingerlings. The probiotic was isolated from the intestine of C. carpio and Carassius auratus. In the present study, Micrococcus luteus, Micrococcus lylae, Micrococcus varians, and Micrococcus roseus were used as probiotic in the pelletized feed. The experiment was conducted for 35 days to determine the effect of dietary probiotic on the growth of C. carpio fingerlings. They were maintained in different feeding regimes such as pelletized feed, commercial feed, commercial probiotic feed, mixed probiotic feed and plankton. The growth was assessed by morphometric measurements, percentage of weight gain, specific growth rate, and feed conversion ratio. At the end of the experiment, C. carpio fingerlings shows highest biomass (1.06 ± 0.02 g), percentage of weight gain (97.47 ± 0.41%) and specific growth rate (2.92 ± 0.66%) in fingerlings fed with mixed probiotic pelletized feed, while, feed conversion ratio (1.83 ± 0.10) was the lowest value when compared to other feeding regimes. Mixtures of probiotic bacteria has enhanced the growth of C. carpio fingerlings. From this study, suggested that mixed cultures of probiotics are effective for the rearing of C. carpio fingerlings for sustainable aquaculture.