E3S Web Conf.
Volume 147, 2020The 3rd International Symposium on Marine and Fisheries Research (3rd ISMFR)
|Number of page(s)||4|
|Published online||10 February 2020|
Effects of Probiotic Dosage on Water Quality, Total Count of Aeromonas spp. and Pseudomonas spp. in Eel Anguilla bicolor Cultivation
Department of Fisheries, Faculty of Agriculture, Gadjah Mada University
* Corresponding author: firstname.lastname@example.org
This study was carried out to evaluate the effects of probiotic dosage on water quality, total number of Aeromonas spp. and Pseudomonas spp., in eel (Anguilla sp.) cultivation. Experiment was conducted by using fiber glass tanks (1x1 m2) with 800 L water volume. Eel fingerling with 50 g average body weight were stocked at a density of 20 eel/tank in triplicates. Observation was conducted on total number of bacteria and water quality. The results indicated that the total bacterial count increased gradually by the time of cultivation with highest density of 1.49x107 cfu/mL. Probiotics at a dose of 40 mL/tank weekly increased the total count of bacterial cells in water. Probiotic application was able to decrease the total number of both Aeromonas spp. from 1.95 x 105 to 5.44 x 104 cfu/mL, and Pseudomonas spp. from 3.57 x 104 to 8.1 x 103 cfu/mL. Water quality during this study was not significantly affected by the application of probiotic. This result suggested that the application of proper dose probiotics suppresses Aeromonas spp. and Pseudomonas spp. cells density in water, and might decrease the bacterial infections in eel culture.
© The Authors, published by EDP Sciences, 2020
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