Bacteriological status and quality of culture water in ornamental aquaculture farms of Morelos

Abstract

The objective this work was determining the bacteriological status and the quality of the water used during the culture processes of four aquaculture farms of the state of Morelos, Mexico. The bacteriologycal analyses was done from fishes (Poecillia sphenops), feed and culture water samples, were used culture media BHI, TCBS and EMB; the isolated bacteria were identified by biochemical tests. To determine the quality of the water, samples of ponds and supply channels were analyzed according to official Mexican standards. Microbiological results of water indicated that both channels presented a larger bacterial diversity and load than the analyzed farms, identified 10 bacterial species belonging to Proteobacteria and Firmicutes; regarding feed and fish samples, species like Bacillus megaterium, Vibrio alginolyticus, and Enterococcus faecalis were identified. According to the stipulations of the official Mexican standards, all production units have good water quality; however, the Las Estacas channel exceeds LMP of fecal coliforms (2400 NMP 100 mL-1) and phosphorus (0.83 mg L-1). In conclusion, the sanitary quality of the organisms produced in the farms is influenced by contamination of the channels.

http://dx.doi.org/10.21929/abavet2022.25

https://www.youtube.com/watch?v=0eqD-5dLeys  

e2020-79