RU205583U1 - FISH SPARE DEVICE - Google Patents

Abstract

The utility model relates to fish farming, namely to devices for keeping and preparing for spawning in portions spawning fish, in particular vimba. The technical result is to increase the efficiency of the device when using it. The device has a container for keeping fish, removable sandor-type valves that serve to pass producers , two streamers, a 3.5 m × 2.5 m pool with a drain hole in the upper end wall is used as a tank for keeping fish, two spawning channels with a size of 1.5 m × 0.5 m are rigidly attached to the bottom wall of the pool variable depth of 0.6 m, in the part adjacent to the pool, and 0.4 m - at the end of the spawning canals, where the flow formers are located, rigidly fixed on the walls of the canals, while the valves are made of a metal mesh and reinforced with a steel profile.

Description

The utility model relates to fish farming, namely to devices for keeping and preparing for spawning in portions of spawning fish, in particular vimba.

A device for spawning fish is known, containing a cylindrical basin with a conical bottom with a drain hole in the center, nozzles for water supply built into the middle part of the side wall along the perimeter, providing a circular flow of water, a container with a mesh caviar trap connected to the drain hole of the pool with a waste pipeline, and containers for collecting caviar. The device is also equipped with a camera for catching spawned spawners, connected to the pool with an opening lattice damper and having an inclined lattice bottom, under which a pipe is mounted for returning water from the chamber to the pool. The pool is equipped with a perforated drain pipe, vertically installed in the drain hole, and a removable device for concentrating producers and moving them into the fishing chamber, which is made in the form of a standing and running net wings movably mounted on the perforated drain pipe. The tank with the caviar trap has an additional section with an adjustable water level for distributing caviar in the tank for collecting it. The invention will reduce the injury rate of producers, increase the yield of larvae, as well as reduce water consumption and reduce the labor intensity of the process (see RF patent application No. 2202180, 2001).

However, it lacks adaptations that allow pre-spawning preparation of fish.

The closest in fact is a spawning device for pike perch, containing a tray divided by a vertical partition into two compartments, one of which serves to accommodate spawning nests, a vertical partition is installed along the longitudinal axis of the tray, has removable sandor-type valves in the partition along the edges, which serve to pass producers kept in both compartments before spawning, two flow formers located at the end of the tray, removable spawning nests made of propylene are located in the water column, held by weights at the bottom of the tray, devices for monitoring hydrological and hydrochemical indicators are fixed on the inner front wall of the tray, two spillways holes on the opposite end wall of the tray (see RF patent No. 184695, 2017).

However, this device does not provide for the possibility of fish entering independently for spawning, which reduces the efficiency of spawning and further incubation of eggs.

The technical task is to create a biotechnological device for keeping and preparing vimba fish for spawning in controlled conditions, simulating the natural conditions of the environment by improving the design of the device.

The technical result is an increase in the efficiency of the device when using it.

It is achieved by the fact that in the known device containing a container for keeping fish, removable sandor-type valves that serve to pass producers, two flow formers, as a container for keeping fish, a pool of 3.5 m × 2.5 m is used with a drain hole in the upper end wall, to the bottom wall of the pool, two spawning canals are rigidly attached with the size of 1.5 m × 0.5 m with a variable depth of 0.6 m, in the part adjacent to the pool, and 0.4 m - at the end of the spawning canals, where flow formers, rigidly fixed on the walls of the channels, while the valves are made of a metal mesh and reinforced with a steel profile.

Removable mesh gates of the sandor type allow spawning spawners to pass through the spawning canals, providing a constant flow of water without stagnation.

In the spawning canals, conditions for spawning are provided due to the device of an inclined bottom and a flow created by flow-formers, which facilitate the entry of spawners to spawning.

The pool and channels are arranged with dimensions of 3.5 m × 2.5 m and 1.5 m × 0.5 m with a variable depth of 0.4-0.6 m, which corresponds to the size and biological characteristics of the spawning behavior of vimba.

The proposed device is shown in the drawings - Fig. 1 (top view), Fig. 2 (general view). The device is a pool 1 with a size of 3.5 m × 2.5 m with a drain hole 2 in the upper end wall, two spawning channels 3-4 are rigidly attached to the bottom wall of the pool, measuring 1.5 m × 0.5 m with a variable depth of 0 , 4-0.6 m, separated from the pool by detachable mesh valves of the sandor type 5 made of a metal mesh (Fig. 2), reinforced with a steel profile, two flow former 6 located at the end of the spawning channels 3-4 and rigidly fixed on their walls.

The installation works as follows: water is preliminarily prepared, for which a water treatment unit is located, located separately from the main device, which has a sump, a mechanical filter with a pumping system, a chiller, interconnected by pipelines. Producers of vipers with gonads at the unfinished 4th stage of maturity of the gonads at a temperature of 10-12 ° C are deposited in a pool for wintering, upon reaching spawning temperatures of 15-18 ° C, producers concentrate at the mesh removable valves of the sandor type 5 on the water flow created by the flow formers 6 , the valves 5 are removed and the producers enter the spawning channels 3-4 for hormonal stimulation and obtaining sexual products. Since vimba is a portionally spawning species, the spawned individuals are deposited for further aging at the spawning temperature. The cycle in the proposed device can be repeated 2-3 times.

The proposed device allows for pre-spawning preparation of spawners, spawning regardless of the season, taking into account the biological characteristics of the reproductive cycle, and makes it possible to increase the spawning efficiency.

Claims (1)

A device for spawning vybets, containing a container for keeping fish, removable sandor-type valves that serve to pass producers, two streamers, characterized in that a pool of 3.5 m × 2.5 m with a drain hole is used as a container for keeping fish the upper end wall, to the lower wall of the pool are rigidly attached two spawning canals measuring 1.5 m × 0.5 m with a variable depth of 0.6 m in the part adjacent to the pool, and 0.4 m at the end of the spawning canals, where flow formers, rigidly fixed on the walls of the channels, while the valves are made of a metal mesh and reinforced with a steel profile.

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