Evaluation of growth and production performance of hatchery producedudsilver pompano Trachinotus blochii (Lacépède, 1801) fingerlings underudbrackishwater pond farming in India

摘要

Growth, survival and production performance of hatchery produced silver pompano, Trachinotus blochii, (Lacépède, 1801)udfingerlings were evaluated in a brackishwater pond in Anthervedi, East Godavari District, Andhra Pradesh, India. A total ofud3,400 fingerlings of silver pompano (30.59 ± 0.24 mm mean length and 2.00 ± 0.04 g mean weight) were stocked in a oneudacre pond (0.4047 ha) with salinity of 8 ± 1.2 ppt. The salinity gradually increased to 24 ± 1.8 %0 during the farming perioduddue to high saline intake water. Fishes were fed with extruded floating pellet feed containing 50 to 30% crude protein andud10 to 6% crude fat. After 240 days of culture, 1,305 kg of silver pompano were harvested. The survival rate was 91.32%.udMean length of the harvested fishes was 296.88 ± 6.27 mm and mean body weight 464.65 ±10.25 g. The absolute andudspecific growth rate obtained were 1.93 g day-1 and 2.27% per day respectively with an FCR of 1:1.83. The results revealedudthat farming of T. blochii in brackishwater pond is technically feasible.