Tilapia aquaculture water quality in response to the addition of fermented herbal extract

Abstract

Abstract This study aims to find a suitable Fermented Herbal Extract (FHE) dose to reduce ammonia levels in tilapia cultivation. This research was carried out for one month, from August to September 2021, at Fish Hatchery Laboratory of Marine Sciences and Fisheries Faculty, Hasanuddin University. The study was conducted using a completely randomized design with six treatments and three replications. The treatments were various doses of FHE added to the cultivation water, including 0 ppm, two ppm, four ppm, six ppm, eight ppm, and ten ppm. The juvenile tilapia measuring about 5 cm body length stocked with five fish for each aquarium. Water quality like Dissolved Oxygen, Temperature, pH, Nitrate, Nitrite, and Ammonia content was measured in this study. The results showed that adding FHE to tilapia culture media affected the ammonia concentration. In this study, six ppm of FHE treatment resulted in the lowest ammonia concentration on the 10th and 12th days of observation.

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