阅读说明：本技术 一种用于虾苗培育的池底环沟结构及虾苗培育方法 (A kind of bottom of pond circular groove structure and shrimp seed rearing method for shrimp seed rearing ) 是由 王庆 郭丽芸 周国勤 薛洋 于 2019-08-23 设计创作，主要内容包括：本发明公开了一种用于虾苗培育的池底环沟结构及虾苗培育方法,池底环沟结构包括设置在池塘底部的回形沟,回形沟沿池塘底部四周一圈挖设,所述回形沟断面为等腰梯形,回形沟开口宽度大于底部宽度；所述虾苗培育方法包括如下步骤：a、选塘；b、环沟开挖；c、环沟注水；d、环沟施肥；e、抱卵虾放养；f、饲料投喂；g、起捕或成虾养殖。本发明通过在池塘中开挖环沟的方式,在环沟中进行虾苗的培育,大幅度减少了育苗初期水体的体积,从而减少了水资源及渔药的使用,同时更少的水体使得水质调控更加容易,也使得大面积池塘可进行育苗生产。(The invention discloses a kind of bottom of pond circular groove structures and shrimp seed rearing method for shrimp seed rearing, bottom of pond circular groove structure includes the back-shaped ditch that pond bottom is arranged in, back-shaped four Monday of bank pond bottom circle is dug, and the back-shaped ditch section is isosceles trapezoid, and back-shaped ditch opening width is greater than bottom width；The shrimp seed rearing method includes the following steps: a, selects the pool；B, circular groove excavates；C, circular groove fills the water；D, circular trench manuring；E, shrimp with ovums is put in a suitable place to breed；F, feedstuff feeding；G, harvesting or at shrimp aquaculture.The present invention is by way of excavating circular groove in pond, the cultivation of shrimp seedling is carried out in circular groove, drastically reduce the volume of nursery initial stage water body, to reduce the use of water resource and fishing medicine, less water body is more easier regulating and controlling water quality simultaneously, but also large area pond can carry out nursery production.)

1. a kind of bottom of pond circular groove structure for shrimp seed rearing, including the bottom of pond circular groove knot for the ditch flute profile being arranged in pond bottom Structure, which is characterized in that the bottom of pond circular groove structure includes the back-shaped ditch that pond bottom is arranged in, back-shaped bank pond bottom surrounding One circle is dug, and the back-shaped ditch section is isosceles trapezoid, and back-shaped ditch opening width is greater than bottom width.

2. a kind of bottom of pond circular groove structure for shrimp seed rearing according to claim 1, which is characterized in that the back-shaped ditch Centre is additionally provided with a longitudinal furrow, the longitudinal furrow both ends and back-shaped ditch connection, longitudinal furrow section configuration and back-shaped ditch section configuration phase Together；The back-shaped ditch and longitudinal furrow total opening area are the 20% of pond area.

3. a kind of bottom of pond circular groove structure for shrimp seed rearing according to claim 1, which is characterized in that the back-shaped ditch Opening width 5m, depth 60cm, 30 ° of the two side walls gradient.

4. a kind of bottom of pond circular groove structure for shrimp seed rearing according to claim 2, which is characterized in that the back-shaped ditch With longitudinal furrow opening width 5m, depth 60cm, 30 ° of the two side walls gradient.

5. a kind of shrimp seed rearing method carried out using bottom of pond circular groove structure, which is characterized in that include the following steps；

A, it selects the pool: choosing suitable pond and drain the water in pond, keep dry pond state；

B, circular groove excavates: excavating bottom of pond circular groove structure in pond bottom；

C, circular groove fills the water；New water is filled into bottom of pond circular groove structure；

D, circular trench manuring: discharging fermented organic fertilizer or compound fertilizer for fishery into bottom of pond circular groove structure, and injected volume is by circular groove The gross area applies fermented 4-8 kg of 150-200 kg of organic fertilizer or compound fertilizer for fishery per acre, and top dressing is primary after 7 days, and injected volume is 2-4 kg of compound fertilizer for fishery is applied per acre by the circular groove gross area；

Shrimp with ovums is put in a suitable place to breed: put shrimp with ovums in a suitable place to breed into bottom of pond circular groove structure, shrimp with ovums is put quantity in a suitable place to breed and provided as follows by cultivation purpose:

1) later period is directly carried out using pond into shrimp aquaculture: being put 500g shrimp with ovums in a suitable place to breed per acre by the pond gross area and is put in a suitable place to breed；

2) nursery production and sales are carried out or the later period carries out a point pool: put 2500g shrimp with ovums in a suitable place to breed per acre by the pond gross area and put in a suitable place to breed；

F, feedstuff feeding: 25 days after step e, juvenile prawn mixed feed is fed, daily ration of feeding accounts for the 10-15% of shrimp weight；

G, harvesting or at shrimp aquaculture: harvesting is carried out according to cultivation purpose or at shrimp aquaculture:

1) harvesting: by shrimp seedling harvesting in bottom of pond circular groove structure；

2) at shrimp aquaculture: water plant is planted in pond bottom, after the completion of water plant plantation plus water, water surface elevation are higher than pond bottom, with Water level is gradually deepened in water plant growth, is carried out using entire pond into shrimp aquaculture.

6. a kind of shrimp seed rearing method carried out using bottom of pond circular groove structure according to claim 5, which is characterized in that institute It states in step a, 20-50 mus of selected pond area, is separated into discharge outlet, pond depth is 1-1.5 m, the slope Tang Geng ratio 1:(2.5- 3.0) micro-pore oxygenation equipment, is equipped in pond.

7. a kind of shrimp seed rearing method carried out using bottom of pond circular groove structure according to claim 6, which is characterized in that institute It states in step c, when water filling, water inlet is filtered with bolting silks more than 60 mesh.

8. a kind of shrimp seed rearing method carried out using bottom of pond circular groove structure according to claim 7, which is characterized in that institute It states in step d, water transparency is maintained at 25-30 cm.

9. a kind of shrimp seed rearing method carried out using bottom of pond circular groove structure according to claim 8, which is characterized in that institute It states d to carry out within second day after step c, the step e is carried out on the 5th day after step c；Step e is in June 1 to June 15 In the daytime it carries out, the shrimp with ovums length requirement put in a suitable place to breed reaches 4.5cm or more, and ovum is in blackish green；Shrimp with ovums is each in bottom of pond circular groove structure It uniformly puts in a suitable place to breed a position.

10. a kind of shrimp seed rearing method carried out using bottom of pond circular groove structure according to right 9, it is characterised in that: shrimp seedling Nurturing period, every natural gift are early, evening measures the water quality indicators such as water temperature, pH, dissolved oxygen twice, saturating by filling the water or imposing fertilizer control Lightness, transparency are controlled in 25-30 cm；Situations such as being observed daily, checking shrimp seedling activity, ingest, skims floating on water Object removes shrimp seedling harmful organisms；It was splashed per acre with 10-15kgization water of quick lime every 10-15 days, keeps water pH value 7.0- Between 8.5；Every 7-10 days, using EM bacterium, photosynthetic bacteria or microecological bacillus preparation, the same day of probiotics is used Aerator need to be started in advance with second night；It is fixed with the increase of shrimp seedling quantity in the frequent and pond that shells after shrimp seedling is abnormal Phase splashes water body calcium ion replenishers；Substrate is improved using substrate modifier when bottom of pond mud is excessive.

Technical field

The present invention relates to shrimp culture seed breeding technical fields, and in particular to a kind of bottom of pond circular groove for shrimp seed rearing Structure and shrimp seed rearing method.

Background technique

Freshwater shrimp scientific name Macrobrachium nipponensis is commonly called as river prawn, lake shrimp.It is freshwater shrimp fine and tender taste, delicious flavour, full of nutrition, be it is deep by The favorite rare aquatic products of broad masses, and the important freshwater aquiculture shrimps in China at present.It is quick with shrimp culture industry Development, supply falls short of demand for the appearance of breeding freshwater shrimp seed.Raiser is also becoming increasingly recognized that excellent seed to the importance of breeding production. Therefore, it is necessary to take scientific and efficient seedling-raising technique to carry out the seed breeding of breeding freshwater shrimp.

The nursery pond of traditional freshwater shrimp will generally quadrature no more than 10 mu, can be specially with a large amount of nursery in pond, then It sells or point pond；Can also appropriate nursery, the seedling brought out cultivates directly in former pond and sells at shrimp.

Freshwater shrimp shrimp seedling is bred using traditional approach, there are many drawbacks.At seedling initial stage numerous first, pond load capacity is very low, and one How many up to 10 how many shrimp with ovums mu only puts, and but to carry out rich water to full pond.Especially it is used to directly form the pond of shrimp, has Area is very big, and full pond rich water consumption fertilizer is more, causes to waste, to water resource and great waste.Secondly, shrimp with ovums free-ranging In pond, because the water surface is larger, also it is unfavorable for recapture.Finally, if being used to directly cultivate the pond at shrimp, before shrimp with ovums is put in a suitable place to breed Grass will be planted, premature kind of grass causes careless growing way excessive, and grass is excessively dense in order to prevent, it is also necessary to slice off excessive grass, waste Manpower.

Summary of the invention

The present invention is to solve the above problems, provide a kind of for the bottom of pond circular groove structure of shrimp seed rearing and shrimp seed rearing side Method, carrying out the cultivation of shrimp seedling in bottom of pond circular groove structure, being greatly reduced in such a way that pond bottom excavates circular groove structure The volume of nursery initial stage water body, to reduce the use of water resource and fishing medicine, while less water body makes regulating and controlling water quality It is more easier, but also large area pond can carry out nursery production.Its specific technical solution is as follows:

A kind of bottom of pond circular groove structure and shrimp seed rearing method for shrimp seed rearing, including the ditch flute profile that is arranged in pond bottom Bottom of pond circular groove structure, the bottom of pond circular groove structure include the back-shaped ditch that pond bottom is arranged in, back-shaped bank pond bottom surrounding One circle is dug, and the back-shaped ditch section is isosceles trapezoid, and back-shaped ditch opening width is greater than bottom width.

As a kind of improvement of this programme, be additionally provided with a longitudinal furrow among the back-shaped ditch, the longitudinal furrow both ends with return Shape ditch connection, longitudinal furrow section configuration are identical as back-shaped ditch section configuration；The back-shaped ditch and longitudinal furrow total opening area are pond face Long-pending 20%.

As a kind of improvement of this programme, the back-shaped ditch and longitudinal furrow opening width 5m, depth 60cm, the two side walls gradient 30°。

A kind of shrimp seed rearing method carried out using bottom of pond circular groove structure, is included the following steps；

A, it selects the pool: choosing suitable pond and drain the water in pond, keep dry pond state；

B, circular groove excavates: excavating bottom of pond circular groove structure in pond bottom；

C, circular groove fills the water；New water is filled into bottom of pond circular groove structure；

D, circular trench manuring: discharging fermented organic fertilizer or compound fertilizer for fishery into bottom of pond circular groove structure, and injected volume is by circular groove The gross area applies fermented 4-8 kg of 150-200 kg of organic fertilizer or compound fertilizer for fishery per acre, and top dressing is primary after 7 days, and injected volume is 2-4 kg of compound fertilizer for fishery is applied per acre by the circular groove gross area；

E, shrimp with ovums is put in a suitable place to breed: putting shrimp with ovums in a suitable place to breed into bottom of pond circular groove structure, shrimp with ovums is put quantity in a suitable place to breed and provided such as by cultivation purpose Under:

1) later period is directly carried out using pond into shrimp aquaculture: being put 500g shrimp with ovums in a suitable place to breed per acre by the pond gross area and is put in a suitable place to breed；

2) nursery production and sales are carried out or the later period carries out a point pool: put 2500g shrimp with ovums in a suitable place to breed per acre by the pond gross area and put in a suitable place to breed；

F, feedstuff feeding: 25 days after step e, juvenile prawn mixed feed is fed, daily ration of feeding accounts for the 10-15% of shrimp weight；

G, harvesting or at shrimp aquaculture: harvesting is carried out according to cultivation purpose or at shrimp aquaculture:

1) harvesting: by shrimp seedling harvesting in bottom of pond circular groove structure；

2) at shrimp aquaculture: water plant is planted in pond bottom, after the completion of water plant plantation plus water, water surface elevation are higher than pond bottom, with Water level is gradually deepened in water plant growth, is carried out using entire pond into shrimp aquaculture.

As a kind of improvement of this programme, in the step a, 20-50 mus of selected pond area separates, pond into discharge outlet Pool depth is 1-1.5 m, the slope Tang Geng ratio 1:(2.5-3.0), is equipped with micro-pore oxygenation equipment in pond.

As a kind of improvement of this programme, in the step c, when water filling, water inlet was carried out with bolting silks more than 60 mesh Filter.

As a kind of improvement of this programme, in the step d, water transparency is maintained at 25-30 cm.

As a kind of improvement of this programme, the d is carried out for second day after step c, and the step e is the 5th day after step c It carries out；Step e is carried out in June between June 15 on the 1st, and the shrimp with ovums length requirement put in a suitable place to breed reaches 4.5cm or more, and ovum is in It is blackish green；Shrimp with ovums is uniformly put in a suitable place to breed in each position of bottom of pond circular groove structure.

As a kind of improvement of this programme, during shrimp seed rearing, every natural gift are early, evening measures water temperature, pH, dissolved oxygen etc. twice Water quality indicator controls transparency by filling the water or imposing fertilizer, and transparency is controlled in 25-30 cm；It observed, checked daily Shrimp seedling activity, situations such as ingesting skim floater, remove shrimp seedling harmful organisms；Quick lime was used per acre every 10-15 days 10-15kgization water are splashed, and keep water pH value between 7.0-8.5；Every 7-10 days, EM bacterium, photosynthetic bacteria or gemma are used Bacillus probiotics need to start aerator using the same day of probiotics and second night in advance；After shrimp seedling is abnormal, With the increase of shrimp seedling quantity in the frequent and pond that shells, water body calcium ion replenishers of periodically splashing；Bottom of pond mud uses when excessive Substrate modifier improves substrate.

The invention adopts the above technical scheme compared with prior art, and what is had has the technical effect that

(1) the bottom of pond circular groove structure and shrimp seed rearing method disclosed in this invention for shrimp seed rearing, by pond bottom Bottom of pond circular groove structure in carry out the cultivation of shrimp seedling, later using whole pond progress at shrimp aquaculture in the way of so that large area Pond can carry out nursery production, without exclusively for the lesser pond of nursery excavation area.Meanwhile bottom of pond circular groove structure integrally holds water Space is small, drastically reduces the volume of nursery initial stage water body, to reduce the use of water resource and fishing medicine, while less Water body is more easier regulating and controlling water quality；

(2) the bottom of pond circular groove structure and shrimp seed rearing method disclosed in this invention for shrimp seed rearing, used bottom of pond ring The trench section of ditch structure is isosceles trapezoid, and be open wide narrow base, increases slope surface product, more conducively shrimp climbing in cultivating process It is attached, ingest, be also convenient for the later period carry out harvesting；

(3) the bottom of pond circular groove structure and shrimp seed rearing method disclosed in this invention for shrimp seed rearing rationally utilizes pond, such as The fruit pond directly carries out only to plant grass after emergence at shrimp aquaculture, adding water, the water plant of later plantation will not after nursery Growing way is too quickly to be needed to mow, and reduces manpower.

Detailed description of the invention

Fig. 1, the bottom of pond circular groove structure structural schematic diagram for shrimp seed rearing；

Fig. 2, the bottom of pond circular groove structure top view；

Fig. 3, the bottom of pond circular groove structure section figure；

Appended drawing reference: 1, pond；2, pool bottom；3, bottom of pond circular groove structure；4, back-shaped ditch；5, longitudinal furrow.

Specific embodiment

Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.

It is a kind of bottom of pond circular groove structure 3 for shrimp seed rearing as shown in Figure 1, is included in pond 1 and is arranged at pool bottom 2 Ditch flute profile bottom of pond circular groove structure 3.As shown in Fig. 2, bottom of pond circular groove structure 3 includes the back-shaped ditch 4 that pool bottom 2 is arranged in, it is back-shaped Ditch 4 is dug along four Monday of 1 bottom of pond circle, and a longitudinal furrow 5,5 both ends of longitudinal furrow and back-shaped ditch 4 are additionally provided among back-shaped ditch 4 Logical, 5 section configuration of longitudinal furrow is identical as back-shaped 4 section configuration of ditch；Back-shaped ditch 4 and 5 total opening area of longitudinal furrow are 1 area of pond 20%.As shown in figure 3, back-shaped 4 section of ditch is isosceles trapezoid, back-shaped 4 opening width of ditch is greater than bottom width.