Hatchery live microalgae feeds

Key words aquaculture feeds, hatchery, larvae, microalgae, live feeds, photobioreactor. 

Live microalgae as feeds in aquaculture hatcheries 119 4.2.2 Amino acids and carbohydrates... 

With the development of the aquaculture industry and the need by hatcheries to rear larval and juvenile aquaculture animals came the need for production of microalgae as live feeds. While some hatcheries grow microalgae in multiples of relatively small scale culture containers, for example 20 litre carboys, it is more common for miCToalgal cultures to be grown in disposable plastic bags (200-1000 litres is typical) that are either supported vertically (Plate 9.1b) in metal frames or lie horizontally. 

In practice, many hatcheries, but also research institutes, provide a mixture of feeds to the rotifers microalgae, yeast or yeast-based commercial diet and oil (Srivastava et al, 2011). The mixture of these feeds is applied most of the time due to insufficient supply of live algae and in order, to reduce the feed costs and achieve rotifers which better nutritional quality. 

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