| 摘要 |
FIELD: agriculture. ^ SUBSTANCE: invention relates to fish breeding and may be used in small and large water reservoirs with various depths to grow young valuable fish species using live food available in water depth. Device to grow valuable fish species larvae and to capture live food comprises fish well in the form of frame covered with fine mesh cloth, facility to locate fish well in water reservoir in floating position. The novelty is the fact that to supply food organisms of animal plankton and small forms of zoobenthos available in water depth, device comprises two cone elements, every of which by 1/4 is made of dense material, and by 3/4 - from close-meshed net, and upper ring of element is closed with close-meshed webbing, every of cone elements is connected to corrugate hose, the other end of which is inserted in fish well to form a check valve; besides, device comprises mechanism for lifting and lowering of cone elements made of stands that support beam, where blocks are fixed, through which a cord is pulled, with one end it is fixed to cone element, for possibility to put it in motion in vertical direction, and with othe end - to brace, at the same time water with food organisms arrives along corrugate hoses due to difference in water horizons in cone element and level of water in water reservoir or fish well, at the same time check valve is arranged so that it is able to prevent organism exit from fish well. ^ EFFECT: invention provides for operation of device in any weather at various depths and with various intensity. ^ 1 dwg |
