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Dec 30, 2023
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May 5, 2024
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Abstract

DO levels are needed by fish organisms for metabolic processes, so the value changes quickly. So, giving aeration all the time and siphonization every day is the best treatment in maintaining water quality for growth. However, a study revealed that there is a negative side to excessive aeration until it reaches a saturation point. The results of the study on the process and level of exposure related to gas bubble disease caused by hyperoxia. The first symptom is the presence of gas bubbles under the skin, gas bubbles appear on most of the fins, along the lateral line, gills and in the eyes. Currently, another research is being conducted to prove the real effect of excess aeration, specifically on the health of Tilapia in closed ponds at normal ambient temperatures. In the closed water pond system, air flow is given at 25 mg/L (first pool), 40 mg/L (second pool), and 54 mg/L (third pool), with variable treatment of feed, water quality (temperature & pH). , and the same volume. The focus of the type of fish that will be observed in this research is Tilapia, with a duration of observation for ± 1 month. The maximum DO measurement results at a normal ambient temperature of 25.6 °C pool water is 8.2 mg/L. The optimum DO level in the first pond that is aerated with an air flow of 25 L/m is ± 7.9 mg/L, the optimum DO level in an aerated pond with an air flow of 40 L/m is ± 8.1 mg/L, and the optimum DO level in an aerated pond with an air flow rate of 54 L/m is ± 8.1 mg/L. No matter how big the air flow from the aerator is put into the water, the DO level will not exceed the value of 8.2 mg/L as long as the water temperature is not lower than 25 °C. Tilapia in ponds containing the highest DO levels at normal ambient temperature conditions of this pond water (24.4 – 25.9 °C), grows and develops very well, in fact there is no adverse effect on health.

Keywords

Tilapia health; excessive DO levels; maximum aeration discharge; normal water environment temperature

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Author Biographies

Billi Rifa Kusumah, Nahdlatul Ulama University of Cirebo

Study Program of Fishing Technology, Faculty of Marine and Fisheries Technology

Asep Rachmat, Nahdlatul Ulama University of Cirebon

Study Program of Aquaculture, Faculty of Marine and Fisheries Technology

Ridwan Siskandar, IPB University

Computer Engineering Study Program, College of Vocational Studies

Siti Yulianti, Universitas Nahdhatul Ulama Cirebon

Study Program of Aquaculture, Faculty of Marine and Fisheries Technology

Fauzan Fathur Rahim, Universitas Nahdhatul Ulama Cirebon

Study Program of Fishing Technology, Faculty of Marine and Fisheries Technology

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