Volume 15, Issue 1 (Spring 2023)
3 2023, 15(1): 6-13 |
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Ahmadi A, Ali Beygi T. The effect of different concentrations of formalin disinfectant on the modulation of fungal contamination of rainbow trout (Oncorhynchus mykiss) eggs with Saprolegnia fungus. 3 2023; 15 (1) :6-13
URL: http://jmb.ahvaz.iau.ir/article-1-1072-en.html
URL: http://jmb.ahvaz.iau.ir/article-1-1072-en.html
Department of Fisheries, Faculty of Natural Resources, University of Urmia, Urmia, Iran.
Abstract: (248 Views)
Rainbow trout farming faces challenges such as fungal infections in eggs, the most important of which is the Saprolignia fungus. This study investigated the effect of different concentrations of formalin on reducing fungal contamination caused by Saprolegnia parasitica and increasing the hatching percentage of trout eggs. In the experiments, fertilized eggs were exposed to concentrations of 500, 1000, 1500, and 2000 microliters per liter of formalin, and the results were compared with control groups. The findings showed that treatments of 1500 and 2000 μl/L formalin effectively reduced fungal contamination and significantly increased hatching rates. In contrast, the 500 and 1000 microliter treatments were less effective. The positive control treatment (without formalin) showed the highest level of contamination. The results of this study indicate the high effectiveness of formalin in controlling Saprolignia and its use at optimal concentrations can help improve production efficiency and reduce losses in the aquaculture industry. However, higher doses may have negative effects on the embryo, so careful adjustment of the formalin dose is necessary.
Type of Study: Research |
Subject:
Fisheries
Received: 2023/01/4 | Accepted: 2023/04/16 | Published: 2023/04/16
Received: 2023/01/4 | Accepted: 2023/04/16 | Published: 2023/04/16
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