CORRELATION BETWEEN INTESTINAL MICROBIOTA AND GROWTH OF WHITE SHRIMP (LITOPENAEUS VANNAMEI)

Although intestinal microbiota is closely related to the growth of the host, it is still unclear how it affects the growth of white shrimp. To elucidate the potential processes of intestinal microbiota affecting white shrimp growth, in this study, we compared the intestinal microbiota compositions and metabolisms of larger (11.11 +/- 0.32 g) and smaller (5.30 +/- 0.06 g) individuals in the same batch of white shrimp cultured in the same environment through high-throughput sequencing of 16S rRNA gene. Our results showed that there was no significant difference in the composition of intestinal microbiota between larger and smaller white shrimps. However, Shewanella algae and Neptunomonas sp. were significantly enriched in the larger group, while Delftia sp., Hydrogenophaga sp., Pseudomonas sp., Synechococcus sp., Methylibium sp., Acidovorax sp., Limnohabitans sp., Burkholderia sp., Candidatus Koribacter sp., and Vogesella sp. were enriched in the smaller group. Moreover, the intestinal microbiota might promote the energy metabolism and growth of white shrimps through regulating their metabolic characteristics and switching their metabolisms from material synthesis to energy metabolisms.