22 Jan A new microbiota study!

Thermal stress markers!

In the summer of 2022, temperatures along the Spanish Mediterranean coast rose to 30.49 ºC, testing the limits of the gilthead sea bream inhabiting these waters. The effects? Changes in the intestinal microbiota of the fish, marked by a drastic increase in the genus Brevinema, a taxon now under scrutiny as a potential thermal stress marker in this species. This is the main finding of our latest publication, conducted within the framework of the European AQUAEXCEL3.0 project and the Next Generation GVA-ThinkInAzul project (CSIC1), in collaboration with the company NUKAMEL NV.

The increased presence of Brevinema in the intestine with rising temperatures was due to an imbalance in intestinal homeostasis and not to a greater presence of this bacterium in the water. Moreover, nutritional interventions based on the addition of fat emulsifiers and low-fat diets help reverse this microbial imbalance, contributing to the stabilization of circulating cortisol and blood glucose levels.

The identification of stress markers, such as Brevinema, can enable us to adapt farming practices to develop nutritional strategies that mitigate the effects of global warming on aquaculture production, thereby ensuring the resilience of the sector.

Discover more at the following links:

Publication: https://doi.org/10.1016/j.aqrep.2024.102566

Press releases: https://www.mispeces.com/noticias/Ante-las-olas-de-calor-que-estan-por-llegar-piensos-inteligentes/