The oxygen content and dissolved oxygen consumption level of white shrimp Litopenaeus vannamei in the nanobubble cultivation system

Vaname shrimp is one of the most popular commodities, causing high demand. Success in aquaculture activities is related to the systemic and environmental conditions of cultivation. This study aims to determine the oxygen content and dissolved oxygen consumption level of vaname shrimp in nanobubble cultivation systems. This research was experimental using a completely randomized design factorial pattern. Consisting of two factors, factor A was the shrimp cultivated with nanobubbles and an aerator and factor B factor was the cultivation times of 0 days, 10 days, 20 days and 30 days. The parameters observed were oxygen content, oxygen consumption level and water quality including pH, ammonia, salinity, and temperature. Data analysis was conducted using Analysis Of Variance and continued with Duncan's Multiple Range test. The dissolved oxygen content in nanobubble treatment was 3.9 ppm to 10.8 ppm while the dissolved oxygen aerator treatment was 2.81 ppm to 4.65 ppm. The oxygen consumption rate was from 1.10 up to 6.84 mg/O2/g/hour. The highest value in the aerator treatment was on the 30th day of the third and the lowest hour observation for the nanobubble treatment was on the 10th day of the 1st-hour observation. The results showed that the cultivation system with nanobubbles affected the oxygen content and oxygen consumption level of the vaname shrimp.