Probiotic treatment modulates the bacterial microbiome of larval eastern oysters, Crassostrea virginica, in hatcheries

Microbial education plays a crucial role in harnessing the beneficial properties of microbiota for infectious disease protection inCrassostrea gigas

“…Our findings further indicates that exposure to either bacterial mixes or whole microbiota, leads to changes in the microbiota composition. This was observed during the exposure but also on a long-term basis as previously observed in other studies (Padeniya et al 2022; Villumsen et al 2023; Takyi et al 2024). Interestingly, the bacteria added as part of the bacterial mixes were not detected using the employed method.…”

“…A diversity of studies on oystermicrobiota interactions have also opened a new field of investigations consisting in identifying bacteria beneficial for their associated host during adverse conditions (King et al 2019a;Clerissi et al 2020;Delisle et al 2022;Fallet et al 2022). Research on disease prevention in molluscs based on the use of probiotics has been ongoing for decades but has yet to see widespread applications in farms (Yeh et al 2020;Takyi et al 2023Takyi et al , 2024Muñoz-Cerro et al 2024). While several pre/probiotic-based methods to mitigate infectious diseases have demonstrated success in shrimp hatcheries (Swain et al 2009;Pham et al 2014;Wen et al 2014), their application in oyster farming, particularly in open-sea environments, faces distinct challenges and limitations.…”