METHOD OF GROWING FISH IN SHALLOW FULLY FREEZING LAKES Russian patent published in 2012 - IPC A01K61/00 

FIELD: agriculture.

SUBSTANCE: invention relates to an area of the lake fishery. Method of growing fish in shallow fully freezing lakes includes release juvenile of carp and herbivorous fish into the wintering pond (2). The wintering pond (2) is connected to the lake by one or two channels. Fish is attracted from the lakescape to the wintering pond (2). Water in the wintering pond (2) is aerated. In addition into the wintering pond (2) rainbow trout is released. In water area of the wintering pond (2) during the summer one or more aerators- flow developers (3) are installed and put into operation. They create the best for rainbow trout oxygen and temperature conditions: the oxygen content higher than 5 mg/dm³, the water temperature is below 20C°. The water temperature in the hot period of time is lowered by putting aerators- flow developers (3) into operation at night and switching off during the day. Also, by putting into operation of aerators- flow developers (3) for around-the-clock service on cold days.

EFFECT: provision of optimal oxygen and temperature conditions for growing trout in shallow fully freezing lakes, cost reduction of artificial feed for growing valuable species of fish, reduction of the number of low-value fish species in lakes stocking with fish.

3 cl, 2 dwg, 2 ex