CN204888361U - Snakehead spawning and hatching that takes micropore oxygenation function multi -purpose box with a net of growing seedlings - Google Patents

Abstract

The utility model relates to a snakehead spawning and hatching that takes micropore oxygenation function multi -purpose box with a net of growing seedlings, its characterized in that: box with a net design is for cylindrical, highly be 50 -60cm, and upper and lower bottom surface be diameter 40 -60cm's circular frame, and circular frame uses the thickness to make as the 0.2 -0.4cm reinforcing bar, except that the opening of upper end, hangs the stay cord with four on lower extreme and the lateral overlap 10 -20 mesh nylon yarn tulle piece (the mesh size can not be advisable through the yarn tulle with embryonated egg just), box with a net and is fixed in circular frame, and four are hung the stay cord other end and compile and be used for outstanding suspended net case after tiing a knot. Micropore oxygenation hose draws outside the box with a net bottom along the box with a net side, curve in box with a net bottom department circular, the endcapped, external oxygenation equipment is connected to the other end, micropore oxygenation hose is fixed in on the circular frame through the nylon wire. The utility model discloses simple manufacture, convenient operation, but effective isolation and protect the snakehead parent population, micropore oxygenation to be in order improving water quality the environment, and the spawning and hatching trinity space of sparingly taking up an area of of growing seedlings has high wide use and worth.

Description

A kind of multiplex net cage of snakehead spawning and hatching nursery with micro-pore oxygenation function

Technical field

The utility model relates to a kind of multiplex net cage of snakehead spawning and hatching nursery with micro-pore oxygenation function, and this net cage makes simple, easy to operate, is applicable to breed snakehead seed and scientific experimentation on a large scale, belongs to fish production field.

Background technology

Snakehead fine and tender taste, delicious in taste, and nutritive value is quite high, at home and abroad market is well received, is a kind of famous-brand and high-quality economic freshwater fish.In recent years, because excessively capturing of people is dragged for excessively, wild snakehead standing crop constantly reduces, and far can not meet the eating requirements of people to snakehead, and the support of artificial large-scale cultivation is needed in the supply of snakehead badly.What first the artificial large-scale cultivation of snakehead needed solution is that seed carrys out source problem, and current snakehead seed is obtained by artificial breeding technology mostly.Snakehead is that a kind of strict male and female match the fish laid eggs, when carrying out snakehead artificial breeding, need male and female snakehead is matched one to one and isolates, thus snakehead breeds and adopts net cage, bubble chamber or cement pit compartment more, transfers to hatching nursery pond and carry out incubating oosperm and seed rearing after laying eggs.There is many drawbacks in this method: 1, in net cage reproductive process, snakehead is close to net cage each other, can lay eggs by severe jamming snakehead, even cause and breed unsuccessfully; 2, in bubble chamber reproductive process, because water body is little, dissolved oxygen amount is not enough, and water quality easily worsens, and often causes the fertilized egg hypoxia death of output; 3, in cement pit compartment reproductive process, because compartment volume is narrow and small and pool wall is hard, in process of laying eggs, the slight travelling of snakehead all may cause snakehead parent population injured because of collision, and then affects it and lay eggs; 4, snakehead breeds the place of production needs outfit to lay eggs place (bubble chamber and cement pit compartment), hatchery and nursery pond, and the space, place of needs is comparatively large, and the water that changes of the cleaning of spawning pond and hatchery, nursery pond needs larger human cost.

Utility model content

For overcoming above-mentioned drawback, the utility model devises a kind of multiplex net cage of snakehead spawning and hatching nursery with micro-pore oxygenation function.The technical solution of the utility model is, a kind of multiplex net cage of snakehead spawning and hatching nursery with micro-pore oxygenation function, it is characterized in that: design is cylindrical, height is 50-60cm, upper bottom surface is the circular frame of diameter 40-60cm, circular frame thickness is that 0.2-0.4cm reinforcing bar is made, except upper end open, lower end and side cover 10-20 order nylon yarn tulle sheet (mesh size is not advisable by yarn tulle just with fertilized egg), four haul lines in net cage upper end are fixed on upper circular frame, for hanging net cage after four haul line other ends collect knotting.Micro-pore oxygenation flexible pipe is pulled to net cage outer bottom along net cage side, bottom net cage, locate circumflexion, endcapped, and the other end connects external oxygen increasing equipment, and micro-pore oxygenation flexible pipe is fixed on circular frame by nylon wire.A kind of multiplex net cage of snakehead spawning and hatching nursery with micro-pore oxygenation function that the utility model provides has the following advantages: 1, the utility model makes simple, easy to operate; 2, effectively can isolate the snakehead parent population of pairing, avoid next-door neighbour snakehead each other to the interference of laying eggs; 3, net cage is beneficial to water body exchange, water quality deterioration in conventional foam case or cement pit compartment reproductive process can be avoided and affect breeding and keeping the condition of water quality of each net cage in reproductive process consistent, add that net cage carries micro-pore oxygenation function, effectively can prevent the generation of fertilized egg and seed anoxic in snakehead reproductive process; 4, net cage mesh sheet adopts nylon yarn tulle, soft, snakehead parent population can not be caused to collide when net cage is movable injured; 5, the utility model need be equipped with spawning and hatching nursery Three-in-one water mud sump, compares traditional spawning pond, hatchery and nursery pond, can save the occupation of land space of 2/3rds.

Beneficial effect

Use the utility model, a kind of multiplex net cage of snakehead spawning and hatching nursery with micro-pore oxygenation function, effectively can isolate and protect snakehead parent population, and micro-pore oxygenation is to improve water quality environment, and space is taken up an area in the three-in-one saving of spawning and hatching nursery.The utility model design is ingenious, is convenient to make, and result of use is good, has high to promote the use value.

Accompanying drawing explanation

Fig. 1 is a kind of multiplex cage structure schematic diagram of snakehead spawning and hatching nursery with micro-pore oxygenation function.In figure: 1 haul line, about 2 circular frames, 3 nylon yarn tulle sheets, 4 micro-pore oxygenation flexible pipes, 5 external oxygen increasing equipments.

Embodiment

The utility model most preferred embodiment is provided, to describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.Fig. 1 is a kind of structural representation of the multiplex net cage of snakehead spawning and hatching nursery with micro-pore oxygenation function.As shown in Figure 1: design is cylindrical, height is 50-60cm, upper bottom surface is the circular frame 2 of diameter 40-60cm, circular frame 2 is that 0.2-0.4cm reinforcing bar is made by thickness, except upper end open, lower end and side cover 10-20 order nylon yarn tulle sheet 3(mesh size and are not just advisable by yarn tulle with fertilized egg), four haul lines 1 in net cage upper end are fixed on upper circular frame 2, for hanging net cage after four haul line 1 other ends collect knotting, net cage hangs on spawning and hatching nursery Three-in-one water mud sump, higher than 10-15cm bottom cement pit bottom it, on net cage, circular frame 2 exceeds water surface 10-15cm in case snakehead parent population jumps out (can add shielding cover if desired).Micro-pore oxygenation flexible pipe 4 is pulled to net cage outer bottom along net cage side, bottom net cage, locate circumflexion, endcapped, and the other end connects external oxygen increasing equipment 5, and micro-pore oxygenation flexible pipe 4 is fixed on circular frame 2 by nylon wire.In snakehead reproductive process, first the snakehead parent population matched is put into net cage, net cage hangs on the spawning and hatching nursery Three-in-one water mud sump of depth of water 40-50cm, and higher than 10-15cm bottom cement pit bottom it, on net cage, circular frame 2 exceeds water surface 10-15cm.After treating that snakehead Gunther parent fish spawning completes, parent population is migrated out net cage, carry out incubating oosperm.In hatching process, need to open extraneous oxygen increasing equipment, to keep the dissolved oxygen of water body abundance in net cage.During this, use the suitable diddle-net of mesh to pull unfertilized dead ovum out in case ruin water quality, spawning and hatching nursery Three-in-one water mud sump keeps miniflow water to keep the outer water quality of net cage good.After incubating oosperm completes, continue nursery.In seedling raising process, still need to open extraneous oxygen increasing equipment, to keep the dissolved oxygen of water body abundance in net cage, timely and appropriate discovery is thrown something and fed the suitable open-mouthed bait of snakehead seed.In hatching seedling raising process, the quantity of each net cage fertilized egg and seed can uniform distribution, causes hypoxia death to avoid minority net cage fertilized egg and seed too intensive.

Claims (1)

1. the multiplex net cage of snakehead spawning and hatching nursery with micro-pore oxygenation function, it is characterized in that: design is cylindrical, height is 50-60cm, upper bottom surface is the circular frame (2) of diameter 40-60cm, circular frame (2) is that 0.2-0.4cm reinforcing bar is made by thickness, except upper end open, lower end and side cover nylon yarn tulle sheet (3), mesh sheet size is 10-20 order, upper circular frame (2) is fixed on four haul lines (1) in net cage upper end, for hanging net cage after four haul line (1) other ends collect knotting, micro-pore oxygenation flexible pipe (4) is pulled to net cage outer bottom along net cage side, circumflexion is located bottom net cage, endcapped, the other end connects external oxygen increasing equipment (5), micro-pore oxygenation flexible pipe (4) is fixed on circular frame (2) by nylon wire.