Efficiency of Nile tilapia cultivation business using biofloc technology as an alternative to the use of floating net cages in the waters of Lake Batur, Bali

Nile Tilapia cultivation with biofloc in the coastal area of Lake Batur as an alternative to using floating net cages has not been well developed. The main objective of this research is to analyze the efficiency of tilapia cultivation with biofloc in the coastal area of Lake Batur. This research is essential for developing tilapia cultivation with biofloc and limiting cultivation using floating net cages. The study was conducted in Songan B Village, Kintamani Bangli, involving a sample of farmers cultivating tilapia with biofloc. Data collection uses a questionnaire survey method to analyze the efficiency of tilapia cultivation businesses using analysis of the R/C Ratio. The research found that tilapia cultivation with biofloc was efficient with an R/C value = 1.02, a low survival rate of 66.69%, and a relatively large feed conversion ratio of 1: 1.52.