21 Growth hormone (GH, 0.0025 and 0.025 I.U. ml ) and g-aminobutyric acid (GABA, 50 mg 21 ml ) enhance rotifer population growth in batch cultures. In order to further understand the mechanism of their actions, we conducted experiments culturing isolated females at low food and 6 high free ammonia levels. At an optimum food level of 7 3 10 Nannochloropsis oculata cells 21 21 ml or at low free a...

Long-chain omega-3 polyunsaturated fatty acids (LC n-3 PUFA) exert health benefits which are dependent upon their incorporation into blood, cells and tissues. Plasma and tissue deposition of LC n-3 PUFA from oils extracted from the micro-algae Nannochloropsis oculata and from krill were compared in rats. The algal oil provides eicosapentaenoic acid (EPA) partly conjugated (15%) to phospholipids...

Condensed suspension of live microalga cells, for example, Chlorella vulgaris, Nannochloropsis oculata and Tetraselmis tetrathele is often utilized as diets mass production food resources, that is, rotifers, copepods, cladocerans Artemia. These resources are essential fish larviculture in hatcheries. However, the sufficient microalgae costly, laborious fragile, thus require cost-effective stabl...

Rotifers are widely used in hatcheries to feed small-sized aquatic larvae although one of their disadvantages is the lack zinc and selenium 5- 30-fold lower than copepods, respectively. To improve rotifers quality, different concentrations (2, 4, 5 10 mg L−1 each mineral) were added medium microalgae Isochrysis aff. galbana Nannochloropsis oculata for 4 days, then harvested concentrated rotifer...

Microalgae are a vital resource for the coming years to address concern of decrease in oil reserves and negative impacts fossil fuels on environment. Their utilization is crucial wide range industrial applications. Depending strain, microalgae contain variety chemical components can be treated biochemically or thermochemically. This review thus focuses biochemical mechanisms that used convert a...