Observe the Growth Performance and Adaptation of Exotic Fish Red Tilapia(hybrid) in climate of Fish Hatchery Chilya, Thatta, Sindh-Pakistan

Abstract

The current experiment was conducted to evaluate growth and adaptation of Red Tilapia fish (hybrid) for the period of 150 days in cemented cisterns size (15 x 6 x 3 ft) at fish hatchery ChilyaThatta, Sindh Pakistan. fry having 2.0 g mean weight and 2.5 cm mean length were imported live from Thailand and stocked in cemented cisterns at hatchery. After acclimatization the fry were fed with formulated diet containing 30% gross protein tow times in a day at the rate of 5% of total biomass. The diet consists of fish meal (FM), mustered oil cake (MOC), rice bran (RB), wheat bran (WB), rice protein (RP), wheat flour (WF), salt and vitamin premix. The water quality parameters were recorded monthly basis and ranged between temperature 28-31°C, dissolved oxygen 5.2-6.5 mg/lit, pH 6.7-7.2, Ammonia 0.38-0.54 mg/lit and hardness 110-130 ppm were found within the suitable ranges for fish culture. The outcomes exposed that the growth increment of fry was higher afterward 30 days of rearing period. Finally at the end of experiment fish attained (281g mean weight and 29.4 cm mean length) in 150 days experiment.