Abstract
Giant freshwater prawn (Macrobrachium rosenbergii) is a fisheries commodity that has a high economical value. The purpose of this study is to determine hatching rate and survival rate of giant freshwater prawn in Installation of Brackish Water Culture Mayangan. This research was carried out at Installation of Brackish Water Culture Mayangan from December 2018 until January 2019. The work method used in this research is descriptive method. The giant freshwater prawn hatchery technique is carried out using a natural spawning system. Newly hatched larvae still have egg yolk as food reserves which will run out in 3 days. After that, the larvae will be fed with natural feed, namely Artemia sp. The results showed that the hatching rate and survival rate of giant freshwater prawn were 54.7% and 40.6%, respectively. Water quality parameters of giant freshwater prawn larvae for pH, temperature, dissolved oxygen were 7-8.7, 27-28°C, and 7-8 mg/l, respectively. Ammonia, nitrite, and nitrate for this study were 0.14-0.32 mg/l, 0.006-0.007 mg/l, and 0.2-0.4 mg/l.
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