Data on Growth, survivability, water quality and hemato-biochemical indices of Nile Tilapia (Oreochromis niloticus) fry fed with selected marine microalgae

Data of this article describes growth, survival rate, water quality and hemato-biochemical indices of Nile Tilapia (Oreochromis niloticus) fry. To collect the data, the Nile Tilapia fry was reared in 30 L glass aquarium (18 fish/ tank) for 56-days under controlled environmental condition. Feed was prepared with 25 and 50% replacement of commercial fish meal with Nannochloropsis sp. and Tetraselmis sp. microalgae, while no replacement was made for control feed. Initial and final body weight of fish was recorded to find the data of growth rate; survival rate was calculated from the initial and final live individuals recorded during the experiment; physico-chemical parameters were analyzed to collect water quality data; hemato-biochemical indices were collected using hematology analyzer and photometry. The data on growth, survival rate and hemato-biochemical indices were statistically significant (p < 0.05). Therefore, these data might contribute to the selection of marine microalgae to improve the water quality during fish farming which could enhance the growth and survivability of fish. In addition, the data of hemato-biochemical indices represent that feeding selected marine microalgae might result in the production of healthy and disease-free fish

Chlorella vulgaris cultivation in photobioreactor using municipal wastewater for biofuel

746-752Microalgae, with their potential applications, particularly in food industry and Livestock feed as well as biofuel, has gained considerable attention in recent decades. As their culture using commercial media is expensive, an integrated approach using municipal wastewater is considered for simultaneous biomass production. Therefore, in this study, we evaluated the growth and biochemical composition of the green microalgae Chlorella vulgaris grown in municipal wastewater. Cultures in vertical column photobioreactor in outdoor/indoor conditions were also compared. C. vulgaris showed significantly higher (P <0.05) cell density, biomass, specific growth rate, lipid and carbohydrate in indoor culture condition than outdoor comparatively. Saturated fatty acids and polyunsaturated fatty acids containing 14-18 carbon molecules were significantly higher (P <0.05) in indoor culture. The result suggests that wastewater could be used as a low cost medium to grow C. vulgaris to obtain higher biomass and lipids