The 20th CPC National Congress has clearly pointed out that it is necessary to establish a big view of food, build a diversified food supply system, develop facility-based fisheries with healthy aquaculture as the main focus, and promote the high-quality development of fisheries. As a new model of facility fishery, land-based round pond aquaculture is an intensive and efficient production method that fully utilizes the mountainous and hilly areas with sufficient water resources, and has been rapidly expanding in Guangxi and Guizhou in recent years.

Recently, Guangxi Academy of Marine Sciences, together with Guangxi Institute of Aquatic Sciences and other units, carried out a study on the effects of different culture densities and feeding frequencies on the growth traits, physiological and biochemical indexes, and intestinal bacterial flora of red tilapia under the conditions of land-based round pond culture mode. It was found that, in terms of growth rate and yield per unit of water body, red tilapia culture density at 40 fish/m3 (27.62-225.88 g/fish) was more appropriate, possessing the best health condition and more balanced intestinal flora. In terms of feeding frequency, red tilapia fed three times a day resulted in faster growth rate. The results of this study will provide technical support for the development of land-based round pond culture model.

The results are summarized as “Growth, biochemical indexes, and intestinal microbiotaresponse of red tilapia (Oreochromis spp.) under different densities and feeding frequencies in the land-based aquaculture model”. feeding frequencies in the land-based aquaculture tank” was published in the internationally recognized journal Aquaculture (JCR I). Master's student Xie Yuxiang was the first author, and researcher Yu Ermeng was the corresponding author. The paper was supported by Guangxi Key R&D Program (Guike AB21220019) and other projects.

Link to the paper: https://doi.org/10.1016/j.aquaculture.2024.741741