A Study on culture of Litopenaeus vannamei (preparation, water quality parameters) compared with different stocking densities using standard operational procedures

In India, the shrimp culture today has industrialized into an improved farming system and is evolved day by day into a well talented for the management. Present work was carried out in the shrimp Litopenaeus vannamei culture in Sattanathar aqua farm in the east coast of Nagai District, Tamil Nadu, India from April 2015 to August 2015. Water quality parameters for the entire culture ponds was properly monitored. Pond water pH, temperature and DO readings is measured in early mornings and in the late evenings. For the three culture ponds, the average pH value was found between 7.9 and 8.6 in the early morning, while fluctuation of pH value was between 8.2 and 8.6 in the evening. Dissolved oxygen values varied between 4 mg/L to 8 mg/L. In overall, early morning readings recorded lesser and the cycle proceeded and the standing crop was enlarged. Average pond temperatures were 26 to 31°C, Generally, the temperature tendency in the production cycle started around 28°C and got reduced to 26°C due to cold conditions were found during the 21st and 28th day, and it was found to be increased at 29–31°C. During the culture period, the highest salinity was recorded as 41ppt and reduced salinity was found as 25 ppt in all the culture ponds.