Comparative study on the effects of different water management on the growth and survival of Nile tilapia (Oreochromis niloticus) / Rene Rose K. Pablo

Experimental Research Methodology

Thesis BSF University of Rizal System. Cardona 2005

The study was emphasized on the effects of different water management on the growth and survival of Nile Tilapia (Oreochromis niloticus). The growth and survival of Nile Tilapia was observed 90 days of culture. Sampling was done every 15 days. Two treatments were used in the study, the treatment 1 water was change every two weeks, while treatment 2, used of water recirculating system through pump with bio filter, each were stocked at 12 pieces of fingerlings per tank. In order to investigate the problem raised from the study, two-group design was used as the experimental method. Descriptive analysis, numerical ranking, arithmetic mean, dependent and independent t-test, and chi-square test were used at the statistical tools to draw the effects of different water management on the growth and survival of Nile Tilapia. Based on the study, treatment 1 give the better result. In terms of survival, treatment 2 achieved the higher percentage rate of 72.22%. The variation of result on growth and survival of the Nile tilapia is due to some factors like power failure. Weather condition, that affect the result of the study. The computed t-ratio 2.51 is greater than the tabular value 2.032 that shows the two treatments were significantly affects the growth and survival of cultured nile tilapia.

Pablo, R. K. (2005). Comparative study on the effects of different water management on the growth and survival of Nile tilapia (Oreochromis niloticus). Cardona: University of Rizal System.