Rainbow trout, so called because of the many colored spots is in the skin, is the most important kind of European aquaculture in fresh water. Rainbow trout, which comes from the United States Coast bordering the Pacific, was introduced in Europe in the late 19th century. Very quickly it turned out, thanks to the resilience and rapid growth, particularly suitable for farming. The rainbow trout farmed today in nearly all European countries
fertilized eggs are placed in incubators for eggs hatchery devices. Within each positioned perforated grate, which is installed in such a way that the water entering to enable the oxygenation of fertilized ova
The trout larvae are reared in circular basins fiberglass or concrete to ensure continuous water flow and uniform distribution of the larvae.
Young trout are then transferred to growth units in floating cages in lakes or, most commonly, in tanks along rivers.
Up to 400 grams, can be provided with white or pink flesh, whole or filleted, fresh or smoked. If it is bred for longer and has reached 1.5 kg, rainbow trout sold, like salmon, fresh (filleted or sliced) or smoked (sliced).