CN201091153Y

CN201091153Y - Box for growing seedlings of Procambius clarkia

Info

Publication number: CN201091153Y
Application number: CNU2007200260771U
Authority: CN
Inventors: 雷景涛; 牟长军
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-30
Filing date: 2007-08-30
Publication date: 2008-07-30
Anticipated expiration: 2017-08-30

Abstract

The utility model provides a seedling box for red swamp crayfish, belonging to the field of crayfish seedling devices. The structure of the box includes a seeding cage with a larger size; the cage is in a cube structure and the location of a cut on the upper surface of the cage is provided with a plurality of parent crayfish hanging basket fixing devices; an inner cavity of the cage is provided with a plurality of parent crayfish hanging baskets with a number corresponding to that of the parent crayfish hanging basket fixing devices; the parent crayfishes are cultured in the parent crayfish hanging baskets and the juvenile crayfishes after hatched by the parent crayfishes enter the seedling cage from the parent crayfish hanging baskets to prevent the parent crayfishes from eating the juvenile crayfishes; and simultaneously the inner cavity of the cage is also vertically provided with horizontal and inclined netting groups that are formed through connecting the horizontal nettings by the inclined nettings among each layer, thus being capable of providing more adhesion areas for the juvenile crayfishes. Compared with the prior art, the seedling box for red swamp crayfish of the utility model has the advantages of reasonable design, simple structure and convenient use, can reduce the parent crayfishes to nibble the juvenile crayfishes and improve seedling rate.

Description

Ke Shi crayfish seedling growing box

(1) technical field

The utility model relates to a seed shrimp seedling device, specifically a kind of Ke Shi crayfish seedling growing box.

(2) background technology

The Ke Shi crayfish is commonly called as " freshwater crayfish ".Originate in the North America, Japan is transplanted in the back, and import China Jiangsu Province into by Japan the thirties again, and back natural propagation is to a lot of provinces and cities.The Ke Shi crayfish day by day is people's understanding and a large amount of edible because the meat flavour deliciousness is nutritious.The astaxanthin that extracts from its crust, chitin and derivative thereof are widely used in food, medicine, feed, agricultural and environmental protection aspect.Ke Shi crayfish on the China market is by natural fishing for substantially at present, though the Ke Shi crayfish is cultured and is paid attention to by people gradually, still there is a big difference but compare with aquaculture developed country, the Ke Shi crayfish per mu yield of Australia's intensive culture can reach more than 670 kilograms, and domestic generally in 100-200 kilogram level.A main cause is that the production of present shrimp seedling is extensive breed basically, be difficult to satisfy the shrimp seedling demand that increases day by day, make the Ke Shi crayfish become shrimp aquaculture to be difficult to carry out, and in Ke Shi crayfish breeding process, there is the phenomenon that cuts one another's throat, make that the survival rate of this shrimp is lower, have only and throw whole enough seeds, could guarantee high output.

(3) summary of the invention

Technical assignment of the present utility model is at the deficiencies in the prior art, provides a kind of and can effectively reduce the Ke Shi crayfish seedling growing box that close shrimp is nibbled juvenile prawn.

The technical scheme that its technical problem that solves the utility model adopts is:

Ke Shi crayfish seedling growing box, comprise a net cage, net cage is cube-shaped structure, prop up by the corresponding cube that floatability materials such as pvc pipe are rolled, top is connected to the anti-edge of escaping, its upper surface is provided with several close shrimp hanging basket fixtures, is provided with among the inner chamber of net cage and the corresponding close shrimp hanging basket of close shrimp hanging basket fixture quantity, and hanging down among the net cage inner chamber simultaneously has level and inclination net sheet group.All in the underwater, close shrimp hanging basket is near the water surface when parent's shrimp hanging basket and level, the use of inclination net sheet group, and level, inclination net sheet group are in water.

Above-mentioned Ke Shi crayfish seedling growing box, its close shrimp hanging basket is a plastic crate, the round bottom round mouth, its bottom and bottom have the hole.Put close shrimp in a suitable place to breed in the parent shrimp hanging basket, the juvenile prawn that close shrimp hatches enters the net cage of growing seedlings in close shrimp hanging basket, prevent the predation of close shrimp to juvenile prawn.

Above-mentioned Ke Shi crayfish seedling growing box, its level are connected level net sheet with inclination net sheet group by every interlayer inclination net sheet and constitute.

Ke Shi crayfish seedling growing box of the present utility model compared with prior art, the beneficial effect that is produced is:

This case is reasonable in design, simple in structure, easy to use, can effectively reduce nibbling of close shrimp prawn seedling, improves grow seedlings rate and unit are shrimp seedling output.

(4) description of drawings

Accompanying drawing 1 is a perspective view of the present utility model.

(5) embodiment

Below in conjunction with explaining below 1 pair of Ke Shi crayfish seedling growing box work of the present utility model of accompanying drawing.

As shown in Figure 1, Ke Shi crayfish seedling growing box of the present utility model, its structure comprises net cage 1, and net cage 1 is cube-shaped structure, and the etting employing mesh of net cage 1 is that the polythene net sheet of 1mm is made, and top is taken over control and is escaped the edge, prevents the escape of shrimp seedling; The top opening part of net cage 1 is provided with several close shrimp hanging basket fixtures, is provided with among the inner chamber of net cage 1 and the corresponding close shrimp hanging basket 2 of close shrimp hanging basket fixture quantity, and close shrimp hanging basket 2 is a plastic crate, the round bottom round mouth, its bottom and bottom are porose, allow the shrimp seedling to pass through, and close shrimp climbs and do not go out; Hanging down in the net cage 1 simultaneously has stacked level net sheet group, and every interlayer is every 7cm, and layer has inclination net sheet to be connected with interlayer, climbs up and down for the shrimp seedling, and level and inclination net sheet provide bigger surface area to perch for shrimp simultaneously, can increase shrimp seedling output.Net sheet mesh is 4mm.Be hung in above on the fixture of net cage opening part, the weight that hangs down below makes it vertically not floating, and net sheet group and cage netting keep the distance of 10cm.

Illustrate the use advantage of this Ke Shi crayfish seedling growing box below:

Suppose that every net cage can produce about the long 3cm shrimp of body seedling 5000 tails, solve Ke Shi crayfish culture shrimp seedling supply problem.

Shrimp seedling production now is extensive breed basically, every mu if there are 60 jin of close shrimps, female about 30 jin, be generally one jin of specification that claims ten, its quantity is 30*10=300, and the 300*200=60000 grain of laying eggs survives about 1000 tails spring next year, survival rate is very low, grow seedlings with this case, if every mu with 50 casees (1m*2m*1.5m), can produce about shrimp seedling 50*5000=250000 tail, in forming process, calculate by 80% survival rate, can produce 200000 tails and become shrimp, after forming, 1 jin claims 15, about 13333 jin, can be 26 mu and become shrimp aquaculture supply shrimp seedling.

Its processing and fabricating of Ke Shi crayfish seedling growing box of the present utility model is simple and convenient, and processing and fabricating gets final product shown in the by specification accompanying drawing.

Except that the described technical characterictic of specification, be the known technology of those skilled in the art.

Claims

1. Ke Shi crayfish seedling growing box, comprise net cage (1), it is characterized in that, net cage (1) is cube-shaped structure, opening part is provided with several close shrimp hanging basket fixtures above it, be provided with among the inner chamber of net cage (1) and the close shrimp hanging basket fixture corresponding close shrimp hanging basket of quantity (2), also hanging down among the inner chamber of net cage (1) simultaneously has level and inclination net sheet group (3).

2. Ke Shi crayfish seedling growing box according to claim 1 is characterized in that, the etting of net cage (1) adopts the polythene net sheet to make, and top is connected to the anti-edge of escaping.

3. Ke Shi crayfish seedling growing box according to claim 1 is characterized in that close shrimp hanging basket (2) is a plastic crate, the round bottom round mouth, and its bottom and bottom have the hole.

4. Ke Shi crayfish seedling growing box according to claim 1 is characterized in that, level is connected level net sheet with inclination net sheet group (3) by every interlayer inclination net sheet and constitutes.