CN110999845B

CN110999845B - Breeding method for macrobrachium nipponensis

Info

Publication number: CN110999845B
Application number: CN201911335771.5A
Authority: CN
Inventors: 杨洁; 吴宏达; 张希; 王枫
Original assignee: No10 Division Agricultural Institute Of Sciences Xinjiang Production And Construction Corps; Harbin Academy of Agricultural Sciences
Current assignee: No10 Division Agricultural Institute Of Sciences Xinjiang Production And Construction Corps; Harbin Academy of Agricultural Sciences
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2022-01-21
Anticipated expiration: 2039-12-23
Also published as: CN110999845A

Abstract

The invention relates to the technical field of shrimp culture, in particular to a culture method for macrobrachium nipponensis, which comprises the following steps: step one, putting shrimp larvae: then pumping out 40-60% of water in the temperature control pool body, pouring the water of the shrimp seed culture field with the same volume into the temperature control pool, equally dividing the number of the shrimp seeds according to the number of the temperature control pool bodies, and then putting the shrimp seeds into the temperature control pool body; step two, adaptive cultivation: after the shrimp larvae are put in the first step, culturing the shrimp larvae in the temperature-controlled tank body for 4-10 days; step three, large pond culture: after the shrimp larvae are cultured in the temperature control tank body for 4 to 10 days, the partition plate in the temperature control tank body is removed; and step four, catching adult shrimps, and in the step two, when the temperature of the water body in the temperature control tank body is lower than 16 ℃, heating the water body in the temperature control tank body through a heating device. The method for breeding the young shrimps can greatly reduce the death risk of the young shrimps due to emergency reaction, also can reduce the death risk of the young shrimps due to temperature change during putting, and improves the survival rate of the young shrimps during putting.

Description

Breeding method for macrobrachium nipponensis

Technical Field

The invention relates to the technical field of shrimp culture, in particular to a culture method for macrobrachium nipponensis.

Background

Macrobrachium nipponensis, also called freshwater shrimps, belongs to the Prosodactyla, Tenpoda, Crataegus, Macrobrachium, is mainly distributed in Japan and China and is one of the main economic shrimps in freshwater in China. Except for western plateau regions, the fertilizer is widely distributed in lakes, rivers, reservoirs, ponds and ditches all over the country and has the characteristics of food impurities, fast growth, high reproductive capacity, strong disease resistance and the like. The protein content of the macrobrachium nipponensis is extremely high, and the shrimp shells are important chemical raw materials, so that the macrobrachium nipponensis is widely applied to various aspects such as textile, food, environmental protection, medicine and the like, and has high economic value.

In the current culture mode, generally, in march to april, shrimp seedlings are cultured in an indoor heat-preservation net box, when the water temperature of a feeding pond in april to april reaches 20 ℃ or even more than 20 ℃, the shrimp seedlings are put into a large feeding pond for large pond culture, in june to september, large and small shrimp seedlings are successively caught and put on the market by wheel catching until the catching in September to October is finished.

The reason for adopting the culture mode is that the macrobrachium nipponensis is not resistant to low temperature due to the fact that the species in tropical and subtropical water areas are not suitable for the low temperature, the suitable temperature is usually 18-38 ℃, and when the water temperature is higher or lower, the problems of slow growth and development, even mutation and death can occur.

In most of the macrobrachium nipponensis culture areas in China, the water temperature reaches more than 20 ℃ every year, which is basically about forty-fifty months, and in order to reduce the culture cost by using seasonal water temperature in the period of time, the juvenile macrobrachium nipponensis needs to be cultured in an indoor heat-preservation net cage in the month of thirty-four, so that the shrimp can grow for a long time at a proper water temperature in large pond culture. However, in the actual culture process, april and may and October are usually season alternation periods, that is, at two ends of the current suitable time for large pond culture, the climate temperature is unstable, particularly around april, the time is the time for putting the shrimp seeds into the large pond, the shrimp seeds are separated from the previous constant temperature culture environment for the first time, and the shrimp seeds are weak, and even if the climate temperature is stable in seasons after being put into the large pond, part of the shrimp seeds die due to the difference between the early and late temperatures, so that the survival rate of putting the shrimp seeds is usually 60-80% under the normal condition at present. Particularly, in the case of sudden weather such as late spring coldness, the death rate of the shrimp larvae is increased sharply, and great damage is brought to cultivation.

In order to solve the problems, a mode of building a film heat-insulation greenhouse on a large pond is provided at present, although the water temperature of the large pond can be well controlled, air in the greenhouse is not circulated, various diseases are easy to occur, and the problem of oxygen deficiency of the large pond is caused.

Disclosure of Invention

The invention aims to: aiming at the problems existing in the breeding process of the macrobrachium nipponensis at present, the feeding pond which can improve the survival rate of the shrimp larvae in feeding and is more convenient to maintain and lower in breeding cost compared with greenhouse breeding is provided.

In order to achieve the above purpose, the invention provides the following technical scheme:

the utility model provides a pond of feeding for pond shrimp in Japan, is including feeding cell body and control by temperature change cell body, the control by temperature change cell body setting is in the cell body of feeding inside or the cell body outside of feeding or with the cell body handing-over of feeding, the inside region of control by temperature change cell body with the inside region of the cell body of feeding is linked together the inside or the outside of control by temperature change cell body is provided with and is used for the heating device of temperature in the control by temperature change cell body go to on the control by temperature change cell body one side of feeding the cell body still detachable be provided with the baffle, the edge of baffle with control by temperature change cell body lateral wall or the cell body lateral wall of feeding cooperatees.

The feeding pool is a big pool for culturing macrobrachium nipponensis, the big pool is an open-air big pool, which is different from a greenhouse type feeding pool with a film greenhouse, furthermore, the scheme of the application is provided with a temperature control pool body, the temperature control pool body is communicated with the feeding pool body, and a heating device is arranged in or outside the temperature control pool body, the heating device in the scheme of the application can be a common electric heating device, or a stove, the water in the temperature control pool is heated by a firewood or coal burning mode, in the actual culturing process, in the season of feeding young shrimps around April, the feeding pool is firstly provided with a clapboard, so that the temperature control pool body and the feeding pool are separated, the young shrimps are fed into the temperature control pool body for adaptive segmental feeding, in the stage, because the volume of the young shrimps is small, therefore, the volume of the temperature control pool body can be far smaller than that of the feeding pool body, when extreme weather and sudden temperature change occur, particularly when the temperature of the water is reduced due to the fact that the climate temperature is unstable in around April and the winter weather is late in spring and cold as described in the background technology, the water in the temperature control pool body is heated through the heating device, so that the death risk caused by temperature change during the feeding of the shrimp seeds is reduced, and the feeding survival rate of the shrimp seeds is greatly improved;

furthermore, in the cultivation of macrobrachium nipponensis, the reaction of the macrobrachium nipponensis for coping with the change of environmental factors is called stress reaction, and the mutation of various component indexes in the water body is also a stress factor, so when the macrobrachium nipponensis generates stress reaction for the change of the environmental factors, the immunity of the macrobrachium nipponensis is reduced, and a large amount of physical energy is consumed; if the change range of the stress factors is not particularly large, the stress factors generally only cause slow growth and development or stop growth and development in a short time, then adapt to the stress factors and restart normal growth and development; if the stress time is too long and the change is large, the prawn can be attacked and even die if the stress time exceeds the adaptability of the prawn. Therefore, in the scheme of this application, when breeding, the inside region of control by temperature change cell body separates under the baffle with the cell body of feeding, form independent space, when carrying out the shrimp seedling and put in, the water of control by temperature change cell body adopts two parts to mix to form, partly is the water of the cell body of feeding, another subsection is the water of shrimp seedling culture ground, adopt two kinds of water to mix to carry out the breed of shrimp seedling input initial stage, reduce because of the water composition degree of change, on the one hand, reduce the risk that the shrimp seedling died in response to the emergency reaction, on the other hand also makes the shrimp seedling can adapt to the quality of water in the cell of feeding more fast, shorten the growth lag phase that leads to because of adaptation water composition changes by a wide margin.

Preferably, the upper side horizontal height of the partition plate is consistent with the designed horizontal height of the water body in the feeding pool body.

Preferably, a sliding groove is further formed in the temperature control tank body corresponding to the partition plate, and the partition plate is matched with the sliding groove in a sliding mode.

Preferably, the partition plate comprises a first partition plate and a second partition plate, the first partition plate is a steel plate, and the second partition plate is a mesh plate with a plurality of through holes. The through holes of the second partition plate are smaller than the passing size of the shrimp seeds, so that the shrimp seeds cannot pass through the second partition plate.

Preferably, the number of the temperature control tanks is several.

Preferably, adjacent temperature control tank bodies are separated.

Preferably, the temperature control tank body is arranged outside the feeding tank body, and the temperature control tank body is formed by locally protruding the feeding tank body.

Preferably, the temperature control tank body is open towards one side of the feeding tank body and is connected with the feeding tank body, and the heating device is arranged on one side of the temperature control tank body far away from the feeding tank body or at the bottom of the temperature control tank body.

Preferably, the outer wall of the temperature control tank body is coated with a heat-resistant layer, and the heat-resistant layer is made of a refractory material.

As a preferable mode, the heating device is an electric heating coil, and the electric heating coil is clamped between the heat-resistant layer and the outer wall of the temperature control cell body. This application control by temperature change cell body adopts refractory concrete to pour and forms, is provided with steel reinforcement framework in refractory concrete.

Further preferably, the heating coil is fully distributed on the lower half part of the side wall of the temperature control tank body and the bottom of the temperature control tank body.

As another preferable mode, the heating device is a firewood and coal type heating device, the side wall of the temperature control tank body far away from the feeding tank body is an inclined side wall which is obliquely arranged, the inclined side wall is inclined from bottom to top towards the direction far away from the feeding tank body, and the firewood and coal type heating device is arranged below the inclined side wall. In this application firewood coal formula heating device, for the heating device who adopts the mode production heat that burns firewood or coal, firewood coal formula heating device sets up and is used for heating the slope lateral wall of control by temperature change cell body in slope lateral wall below.

Preferably, the firewood coal heating device comprises a furnace bridge horizontally arranged below the inclined side wall and a bracket used for supporting the furnace bridge to separate the furnace bridge from the ground below.

Preferably, still be provided with the water tank outside the slope lateral wall, the water tank is followed slope lateral wall slope sets up, the bottom of water tank is provided with the inlet tube, the inlet tube passes the slope lateral wall stretches into to feeding in the pond, the top of water tank is provided with the outlet pipe, the outlet pipe passes the slope lateral wall in the temperature control pond, the level of inlet tube is less than the level of outlet pipe. In the scheme of this application, water tank and water pipe all adopt refractory concrete pouring to get or adopt steel sheet and steel pipe to make.

Preferably, the water tank is rectangular box structure, the width of water tank with the width phase-match of slope lateral wall, the water tank certainly the lower part of slope lateral wall is followed the slope lateral wall upwards extends, water tank upper end height is less than the design level of the internal water of feeding pond.

Preferably, the water tank is separated from the inclined side walls, a plurality of guide plates are arranged on one side of the water tank facing the inclined side walls, the guide plates are parallel to each other, one side of each guide plate is connected with the water tank, the other side of each guide plate extends into the inclined side walls and is connected with the steel reinforcement framework in the inclined side walls, the guide plates are separated from each other, and an air flow channel is formed between the adjacent side walls.

Preferably, the deflector is a steel plate.

Preferably, the water outlet of the water outlet pipe is further connected with a hose, and the length of the hose ensures that the water outlet of the hose can extend into the feeding pool body.

Preferably, the partition plate is provided with a recess on the upper side for placing the hose.

Preferably, a floating plate is further arranged at the water outlet of the hose, and the water outlet of the hose is arranged on the lower side of the floating plate, so that the water outlet of the hose is kept below the liquid level of the water body.

Preferably, the water outlet of the hose is aligned with the middle position of the lower side of the floating plate, a buckle for clamping the hose is arranged on the lower side of the floating plate, and a gap is reserved between the water outlet of the hose and the lower side of the floating plate.

Preferably, the number of the temperature control tank bodies is at least four, and the temperature control tank bodies are uniformly distributed in the circumferential direction of the feeding tank body.

Preferably, the upper edge of the temperature control tank body exceeds the feeding tank body, a cover plate is detachably arranged on the edge of the upper side of the temperature control tank body, and the cover plate is detachably matched with the upper side face of the temperature control tank body in a sealing manner.

The application also discloses a culture method for culturing macrobrachium nipponensis by adopting the feeding pond,

the culture method adopts the feeding pond to culture the macrobrachium nipponensis,

preferably, the cultivation method comprises the following steps:

step one, putting shrimp larvae: after the water in the feeding pool is poured, installing a partition plate in the temperature control pool body to separate the water in the temperature control pool body from the water in the feeding pool, then pumping out 40-60% of the water in the temperature control pool body, pouring the water in the shrimp seedling cultivation field with the same volume into the temperature control pool, equally dividing the number of the shrimp seedlings according to the number of the temperature control pool bodies, and then putting the shrimp seedlings into the temperature control pool body, so that each temperature control pool body corresponds to the same number of the shrimp seedlings;

step two, adaptive cultivation: after the shrimp larvae are put in the first step, culturing the shrimp larvae in the temperature-controlled tank body for 4-10 days;

step three, large pond culture: after the shrimp larvae are cultured in the temperature control tank body for 4 to 10 days, the clapboard in the temperature control tank body is dismantled, so that the temperature control tank body is communicated with the feeding tank body;

step four, catching adult shrimps: fishing the macrobrachium in the feeding pond when the macrobrachium is cultured to the standard of the market;

in the second step, when the temperature of the water body in the temperature control pool is lower than 16 ℃, the water body in the temperature control pool is heated through the heating device, and the floating plate is placed in the temperature control pool, so that the temperature of the water body in the temperature control pool is between 20 and 38 ℃.

Preferably, in the second step, when the temperature of the water in the temperature control tank body is lower than 20 ℃, a cover plate is assembled on the temperature control tank body.

Preferably, in the second step, when the temperature of the water body in the temperature control tank body reaches 30 ℃, the cover plate above the temperature control tank body is removed, and the floating plate is placed in the feeding tank body, so that the water outlet of the hose is positioned in the feeding tank body.

Preferably, in the first step, young shrimps are put in one of the temperature control tanks firstly, observation is carried out for 4-5 hours, young shrimps are put in the other temperature control tanks if the activity of the young shrimps is not obviously reduced, and the factors causing the activity reduction of the young shrimps are found out firstly if the activity of the young shrimps is obviously reduced, and then the young shrimps are put in the other temperature control tanks after the solution is solved. In the scheme, the young shrimps are fed once within 4-5 hours after being thrown, so that the activity of the young shrimps is obviously reduced to that the activity of the young shrimps is reduced, and the young shrimps do not take food, so that the factors for reducing the activity of the young shrimps are mainly concentrated on water components and temperature, and when the water components deviate from the designed components, the water components in the feeding tank body and the temperature control tank body are adjusted to recover the designed components; when the temperature of the water in the temperature control pond is too low, the water in the temperature control pond is heated by the heating device, and then the shrimp larvae are thrown in.

Preferably, in the first step, the young shrimp is released from beginning of april to middle of april.

Preferably, in the first step, the first partition plate is adopted as the partition plate, and in the second step, when the young shrimps are cultured in the temperature control tank body for three to four days, the first partition plate is replaced by the second partition plate.

Preferably, in the third step, when the ambient temperature is reduced and the temperature of the water in the feeding tank is lower than 16 ℃, all the heating devices are started to heat the water in all the temperature control tanks, and the floating plate is placed in the feeding tank.

Preferably, in the fourth step, the shrimp seeds are fished once in two weeks from four months after being thrown, grown shrimps which do not meet the requirement of marketing are selected each time, and the grown shrimps are put back into the feeding pond for cultivation again until the pond cleaning and fishing are finished in October or November. In this application, clear pond is catched for carrying out whole fishing for the macrobrachium in will feeding pond.

Preferably, in the fourth step, each heating device is started 4-6 hours in advance when the fish is caught each time, so that the temperature of the water body in the area where the temperature control tank body is located is higher than the temperature of the water body at the rest positions in the feeding tank body, and the heating devices are controlled to ensure that the temperature of the water body in the temperature control tank body is lower than 38 ℃.

Preferably, in the fourth step, in each fishing before pond cleaning fishing, a cover plate of each temperature control tank body is installed one day before each fishing, a plurality of shrimp catching cages are placed in the temperature control tank bodies and the feeding tank bodies near the periphery of the temperature control tank bodies, when fishing is carried out, the cover plates are taken down, the shrimp catching cages are pulled up, adult shrimps meeting the requirement of the market are selected, and adult shrimps which do not meet the requirement of the market are placed back into the feeding tank for continuous culture;

when the pond is cleaned and fished, the macrobrachium in the feeding pond is completely fished by adopting a trawl mode.

Preferably, in the fourth step, when the shrimp catching cage is placed, bait is scattered in the temperature control pool body.

Compared with the prior art, the invention has the beneficial effects that:

according to the feeding pool, when extreme weather occurs and the climate temperature is suddenly changed and unstable, water in the temperature control pool body is heated through the heating device, so that the death risk caused by temperature change in shrimp larvae feeding is reduced, and the shrimp larvae feeding survival rate is greatly improved;

according to the scheme, when the shrimp larvae are fed, the inner area of the temperature control pool body and the feeding pool body are separated under the action of the partition plate to form an independent space, when the shrimp larvae are fed, the water body of the temperature control pool body is formed by mixing two parts, one part is the water body of the feeding pool body, the other part is the water body of a shrimp larvae breeding field, and the shrimp larvae are fed for early-stage breeding by mixing two kinds of water, so that the change degree of water body components is reduced, on one hand, the risk of death of the shrimp larvae due to emergency reaction is reduced, on the other hand, the shrimp larvae can adapt to the water quality in the feeding pool more quickly, and the growth lag period caused by adaptation to the great change of the water body components is shortened;

the first clapboard is a steel plate without through holes, which can realize better separation of the water in the temperature control pond and the water in the feeding pond in the early stage of putting the shrimp seeds, so that the water in the temperature control pond is formed by mixing the water in the shrimp seed culture farm and the water in the feeding pond in the stage, the first clapboard can play a good separation effect to ensure the stability of the water in the temperature control pond and reduce the emergency reaction of the shrimp seeds caused by the change of the water components, after the shrimp seeds are cultured for a period of time in the state, the shrimp seeds are gradually adapted to the change of the water components, the first clapboard is changed into a screen-shaped second clapboard with through holes, the water in the temperature control pond is communicated with the water in the feeding pond to form consistent water components after complete mixing, the shrimp seeds are continuously cultured in the state, which is favorable for observing the activity and growth condition of the shrimp seeds, when the risks of influencing survival rate reduction such as activity reduction exist, the second partition plate is replaced by the first partition plate, so that rescue cultivation recovery is carried out on the shrimp seeds in a small area, time is provided for eliminating adverse factors in the feeding pond body, and therefore under the condition that normal cultivation of the shrimp seeds is ensured, enough time can be provided for screening and solving problems, and the problem that the shrimp seeds die in a large area at the initial feeding stage and are difficult to control in the conventional cultivation process is solved; after the shrimp seeds are completely adapted to the water body of the feeding tank body, the second clapboard is removed, so that the shrimp seeds enter a large pond for culture;

in the embodiment, the flame formed by burning the firewood and the coal is blocked by the water tank, the water tank is filled with water, firstly, the firewood and the coal flame is prevented from directly burning the inclined side wall, the service life of the inclined side wall is prolonged, on the other hand, because the water outlet pipe is higher than the water inlet pipe, when the water tank is heated, hot water in the water tank has the upward flowing trend, therefore, the heated water flows out from the water outlet pipe, cold water in the feeding pool enters the water tank to form circulation, the water tank and the inclined side wall are prevented from having overhigh temperature, and further, the marsh shrimps are prevented from being burnt by overhigh temperature on the inner part of the inclined side wall, furthermore, in the way, when the heating device works, on the one hand, the inclined side wall transfers heat to the water in the temperature control pool to realize heating, on the other hand, the water discharged by the water outlet pipe also realizes the heating of the water, and the heating position is also dispersed while the heating efficiency is improved, the problem of overhigh temperature of a local position is avoided while the heating uniformity is improved, and the hot water in the water tank is continuously replaced, so that the water in the water tank is not heated to overhigh temperature, and the heat utilization rate is greatly improved in such a way;

the hose is arranged, so that water in the drain pipe can be drained into the feeding pool body, a farmer can control the temperature of the water body in the temperature control pool body through practical conditions, the heating device can be stopped when the temperature is too high, and the water outlet of the hose can be selectively arranged in the temperature control pool body or the feeding pool body when heat preservation is needed;

the method for culturing the macrobrachium nipponensis can greatly reduce the emergency reaction of the shrimp seeds caused by the change of water and the death risk of the shrimp seeds caused by the emergency reaction, and on the other hand, the shrimp seeds can adapt to the water quality in the feeding pond more quickly and the growth and development lag period caused by the large change of the adaptive water components is shortened; and when the water temperature is reduced to a temperature which is not suitable for the growth of the macrobrachium nipponensis and even a survival limit temperature, the water in the temperature control tank body is heated by the heating device, so that the death risk caused by the temperature change of the shrimp larvae is reduced, and the survival rate of the shrimp larvae is greatly improved.

Description of the drawings:

FIG. 1 is a schematic structural diagram of relative position arrangement of a temperature control tank body and a feeding tank body in one embodiment;

FIG. 2 is a schematic structural view of section A-A of FIG. 1;

FIG. 3 is a schematic diagram of a tank and baffle in one embodiment;

FIG. 4 is a block diagram showing the steps of the method for culturing Macrobrachium nipponense of the present application,

the following are marked in the figure: 1-temperature control tank body, 2-feeding tank body, 3-partition plate, 4-sliding chute, 5-furnace bridge, 6-support, 7-water tank, 8-guide plate, 9-inclined side wall, 10-water inlet pipe, 11-water outlet pipe, 12-hose and 13-floating plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments.

Thus, the following detailed description of the embodiments of the invention is not intended to limit the scope of the invention as claimed, but is merely representative of some embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the embodiments of the present invention and the features and technical solutions thereof may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like refer to orientations or positional relationships based on those shown in the drawings, or orientations or positional relationships that are conventionally arranged when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and such terms are used for convenience of description and simplification of the description, and do not refer to or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Example 1, as shown in figures 1-4:

the utility model provides a pond of feeding for pond shrimp in Japan, is including feeding cell body 2 and control by temperature change cell body 1, control by temperature change cell body 1 sets up feed cell body 2 inside or feed cell body 2 outside or with feed cell body 2 handing-over mutually, control by temperature change cell body 1 inside region with the inside region of feeding cell body 2 is linked together control by temperature change cell body 1 inside or outside is provided with and is used for the heating device of temperature in the control by temperature change cell body 1 is gone up towards on the control by temperature change cell body 1 one side of feeding cell body 2 still detachable is provided with baffle 3, the edge of baffle 3 with 1 lateral wall of control by temperature change cell body or 2 lateral walls of feeding cell body cooperate.

The feeding pool comprises a feeding pool body 2, a temperature control pool body 1, a feeding pool body 2 and a heating device, wherein the feeding pool body 2 is a large pool for culturing macrobrachium nipponense, the large pool is an open-air type large pool, and is different from a greenhouse type feeding pool provided with a film greenhouse, further, in the scheme of the application, the temperature control pool body 1 is arranged, the temperature control pool body 1 is communicated with the feeding pool body 2, the heating device in or outside the temperature control pool body 1 can be a common electric heating device, or a stove can be adopted, water in the temperature control pool is heated in a firewood or coal burning mode, in the actual culturing process, in the shrimp seedling throwing season around April, the feeding pool is adopted, a long and short partition plate 3 is firstly arranged, so that the temperature control pool body 1 and the feeding pool are separated, the shrimp seedlings are thrown into the temperature control pool body 1 to carry out adaptive segmental feeding, in the stage, the volume of the shrimp seedlings is small, therefore, the volume of the temperature control pool body 1 can be far smaller than that of the feeding pool body 2, when extreme weather and sudden temperature change occur, particularly when the temperature of the water is reduced due to the fact that the climate temperature is unstable in around April and the temperature of the water is reduced in late spring and cold weather as described in the background technology, the water in the temperature control pool body 1 is heated through the heating device, so that the death risk caused by temperature change during the feeding of the young shrimps is reduced, and the feeding survival rate of the young shrimps is greatly improved;

furthermore, in the cultivation of macrobrachium nipponensis, the reaction of the macrobrachium nipponensis for coping with the change of environmental factors is called stress reaction, and the mutation of various component indexes in the water body is also a stress factor, so when the macrobrachium nipponensis generates stress reaction for the change of the environmental factors, the immunity of the macrobrachium nipponensis is reduced, and a large amount of physical energy is consumed; if the change range of the stress factors is not particularly large, the stress factors generally only cause slow growth and development or stop growth and development in a short time, then adapt to the stress factors and restart normal growth and development; if the stress time is too long and the change is large, the prawn can be attacked and even die if the stress time exceeds the adaptability of the prawn. Therefore, in the scheme of this application, when breeding, the inside region of control by temperature change cell body 1 separates under baffle 3 with the cell body 2 of feeding, form independent space, because the shrimp seedling is put in, the shrimp seedling body length is little, although control by temperature change cell body 1 is less than the cell body 2 of feeding, but the problem that the cultivation density is big that can not lead to, when carrying out the shrimp seedling to put in, the water of control by temperature change cell body 1 adopts two parts to mix to form, partly is the water of the cell body 2 of feeding, another subsection is the water of shrimp seedling culture place, adopt two kinds of water to mix to carry out the cultivation of shrimp seedling input initial stage, reduce because of the water composition degree of change, on the one hand, reduce the risk that the shrimp seedling died in response to the emergency reaction, on the other hand also makes the shrimp seedling can adapt to the quality in the cell body of feeding more fast, shorten the growth lag phase that leads to because of adaptation water composition change by a wide margin.

As a preferable embodiment, based on the above scheme, further, the upper horizontal height of the partition board 3 is consistent with the designed horizontal height of the water body in the feeding tank body 2. Thus ensuring that the baffle 3 separates the water body in the feeding tank body 2 from the water body in the temperature control tank body 1.

As a preferable embodiment, on the basis of the above scheme, a sliding groove 4 is further provided on the temperature control tank body 1 corresponding to the partition plate 3, and the partition plate 3 is slidably engaged with the sliding groove 4. The arrangement of the sliding groove 4 facilitates the installation and the removal of the partition board 3 and also facilitates the sealing and matching between the partition board 3 and the sliding groove 4.

As a preferred embodiment, in addition to the above scheme, the partition plate 3 includes a first partition plate and a second partition plate, the first partition plate is a steel plate, and the second partition plate is a mesh plate having a plurality of through holes. The through holes of the second partition plate are smaller than the passing size of the shrimp seeds, so that the shrimp seeds cannot pass through the second partition plate. The partition plate 3 is set as a first partition plate and a second partition plate, the first partition plate is a steel plate without through holes on the first partition plate in the early stage of putting the shrimp seeds in the temperature control pool body 1 and the feeding pool body 2, the water body in the temperature control pool body 1 is formed by mixing the water body in the shrimp seed cultivation field and the water body in the feeding pool body 2, the first partition plate can play a good partition effect to ensure the stability of the water body in the temperature control pool body 1 and reduce the emergency reaction of the shrimp seeds caused by the change of the water body components, after the shrimp seeds are cultivated for a period in the state, the shrimp seeds are gradually adapted to the change of the water body components, the first partition plate is changed into a mesh plate-shaped second partition plate with through holes, the water body in the temperature control pool body 1 is communicated with the water body in the feeding pool body 2, the consistent water body components are formed after the complete mixing, and the shrimp seeds are continuously cultivated in the state, the method is beneficial to observing the activity and growth condition of the shrimp seeds, when the risk of influencing the decrease of survival rate such as activity reduction exists, the second partition plate is replaced by the first partition plate, so that the rescue cultivation recovery of the shrimp seeds is carried out in a small area, and time is provided for eliminating adverse factors in the feeding tank body 2, so that under the condition of ensuring the normal cultivation of the shrimp seeds, enough time can be provided for screening and solving problems, and the problem that the shrimp seeds die in a large area at the initial feeding stage in the conventional cultivation process and are difficult to control is avoided;

and after the shrimp seeds are completely adapted to the water body of the feeding tank body 2, the second clapboard is dismantled, so that the shrimp seeds enter a large pond for culture.

Preferably, the number of the temperature control tank bodies 1 is several. Temperature control cell body 1 sets up to a plurality ofly, and on the one hand is further reduction shrimp postlarvae puts in initial stage large tracts of land pathological change risk, and on the other hand can reduce 1 size in single temperature control cell body, makes things convenient for the shrimp postlarvae of single temperature control cell body 1 to breed and breed environmental control.

Preferably, the sectional area of the temperature control pool body 1 is the same as that of the culture pool in the shrimp fry culture farm. So, the breed density of shrimp seedling in convenient control by temperature change pond keeps in keeping unanimous with the shrimp seedling culture farm, and then, further reduces because of breeding the too big emergency reaction risk that leads to the shrimp seedling of density.

Preferably, adjacent temperature control cell bodies 1 are separated from each other. On one hand, the influence among the temperature control tank bodies 1 is reduced, on the other hand, when the temperature control tank bodies 1 are heated, all heating areas are distributed at different positions of the feeding tank bodies 2, so that the shrimps in the feeding tank bodies 2 are gathered in all the heating areas, and when the temperature of water bodies is low in low-temperature weather, the shrimps are gathered in all the temperature control tank bodies 1 and the vicinity of the temperature control tank bodies under the induction of hotter water areas, so that the risk of death of the shrimps caused by over-low temperature of the water bodies is reduced; when fishing, also heating through heating device, the shrimp is under the induction of hot waters, assembles at each control by temperature change cell body 1 and near it, when conveniently fishing, and more importantly, reduces the mechanical injury of fishing in-process shrimp, ensures the activity of the shrimp of becoming on the market, also ensures simultaneously not to accord with the shrimp that closes the market requirement, when being put into again and feeding cell body 2, will appear the risk of unfavorable growth because of mechanical injury.

Preferably, the temperature control tank body 1 is arranged outside the feeding tank body 2, and the temperature control tank body 1 is formed by locally protruding the feeding tank body 2. The temperature control tank body 1 and the feeding tank body 2 are communicated and exchanged with water, construction is facilitated, and occupied area of land is reduced.

Preferably, the temperature control tank body 1 is opened towards one side of the feeding tank body 2 and is connected with the feeding tank body 2, and the heating device is arranged at one side of the temperature control tank body 1 far away from the feeding tank body 2 or at the bottom of the temperature control tank body 1. With heating device setting in the one side or the bottom far away from feeding cell body 2, make on the one hand on temperature control cell body 1 apart from feeding cell body 2 more far away to feeding cell body 2 the direction, the temperature is the state that reduces gradually, does benefit to the control to the breed personnel to the temperature, on the other hand also makes hottest position keep away from feeding cell body 2, reduces the risk of the pond shrimp of burning.

Preferably, the outer wall of the temperature control tank body 1 is coated with a heat-resistant layer, and the heat-resistant layer is made of a refractory material. The heat-resistant layer has the heat-resistant function, so that the good service life of the temperature control tank body 1 is ensured, and the heat-resistant layer also has a good heat-preservation effect.

Example 2, as shown in figures 1-4:

on the basis of the scheme of the embodiment 1, the feeding pond for the macrobrachium nipponense further comprises an electric heating coil, and the electric heating coil is clamped between the heat-resistant layer and the outer wall of the temperature control pond body 1. This application control by temperature change cell body 1 adopts refractory concrete to pour and forms, is provided with steel reinforcement framework in refractory concrete. Adopt heating coil device as heating device, heating efficiency is high, makes things convenient for heating temperature control moreover, adopts heating coil structure, can improve the heating homogeneity by a wide margin.

Further as a preferred embodiment, based on the above scheme, the heating coil is distributed over the lower half part of the side wall of the temperature control tank body 1 and the bottom of the temperature control tank body 1. Thus, the heating efficiency is further improved.

Example 3, as shown in figures 1-4:

on the basis of the scheme of the embodiment 1, the feeding pool for the macrobrachium nipponensis is further characterized in that the heating device is a firewood and coal type heating device, the side wall of the temperature control pool body 1, which is far away from the feeding pool body 2, is an inclined side wall 9 which is obliquely arranged, the inclined side wall 9 is inclined from bottom to top towards the direction far away from the feeding pool body 2, and the firewood and coal type heating device is arranged below the inclined side wall 9. In this application firewood coal formula heating device, for the heating device who adopts the mode production heat that burns firewood or coal, firewood coal formula heating device sets up and is used for heating the slope lateral wall 9 of temperature control cell body 1 below slope lateral wall 9.

In the embodiment, the firewood and coal type heating device is particularly suitable for farms far away from power equipment, and in the scheme of the embodiment, the inclined side wall 9 is arranged, so that a heating space is formed below the inclined side wall 9 conveniently, more importantly, in the flowing process of the hot gas from bottom to top, all parts of the inclined side wall 9 are heated uniformly, the heating uniformity of the inclined side wall 9 is improved, and the heating effect can be realized by using the hot gas as much as possible.

As a preferred embodiment, further to the above solution, the firewood and coal heating apparatus includes a grate 5 horizontally disposed below the inclined side wall 9 and a support 6 for supporting the grate 5 such that the grate 5 is spaced from the ground below. The grate 5 is a grate 5 with a conventional structure, and the grate 5 is arranged to further facilitate the combustion of firewood or coal.

As a preferred embodiment, on the basis of the above scheme, a water tank 7 is further arranged outside the inclined side wall 9, the water tank 7 is arranged obliquely along the inclined side wall 9, a water inlet pipe 10 is arranged at the bottom of the water tank 7, the water inlet pipe 10 penetrates through the inclined side wall 9 and extends into the feeding tank body 2, a water outlet pipe 11 is arranged at the top of the water tank 7, the water outlet pipe 11 penetrates through the inclined side wall 9 and into the temperature control tank body 1, and the horizontal height of the water inlet pipe 10 is lower than that of the water outlet pipe 11. In the scheme of this application, water tank 7 and water pipe all adopt refractory concrete pouring or adopt steel sheet and steel pipe to make. In the scheme of the application, the flame formed by burning the firewood and the coal is blocked by the water tank 7, the water tank 7 is filled with water, firstly, the phenomenon that the firewood and the coal flame directly burns the inclined side wall 9 is avoided, the service life of the inclined side wall 9 is prolonged, on the other hand, because the water outlet pipe 11 is higher than the water inlet pipe 10, when the water tank 7 is heated, the hot water in the water tank 7 has an upward flowing trend, therefore, the heated water flows out from the water outlet pipe 11, the cold water in the feeding pond enters the water tank 7 to form circulation, the water tank 7 and the inclined side wall 9 are prevented from having overhigh temperature, and further, the phenomenon that the crayfishes are burnt by overhigh temperature is avoided from forming on the inner part of the inclined side wall 9 is avoided, furthermore, in the mode, when the heating device works, on the one hand, the inclined side wall 9 transfers the heat to the water body in the temperature control pond body 1 to realize heating, on the other hand, the water discharged from the water outlet pipe 11 also realizes the heating of the water body, when improving heating efficiency, also make heating portion by the dispersion, when improving the heating homogeneity, also avoid the too high problem of local position temperature, moreover, the continuous replacement of hot water in the water tank 7 also makes the water in the water tank 7 need not heated to too high temperature, and such mode has also improved the heat utilization efficiency by a wide margin.

As a preferable embodiment, based on the above scheme, the water tank 7 is a rectangular box structure, the width of the water tank 7 matches with the width of the inclined side wall 9, the water tank 7 extends upwards from the lower part of the inclined side wall 9 along the inclined side wall 9, and the height of the upper end of the water tank 7 is lower than the designed horizontal height of the water body in the feeding tank body 2. Thus, the water tank 7 further covers the inclined side wall 9, so that the heat utilization rate is further improved while the side wall is protected, and the water in the water tank 7 can smoothly flow when being heated.

As a preferred embodiment, further to the above solution, the water tank 7 is spaced apart from the inclined sidewall 9 by a distance of 1-3 cm. The water tank 7 is separated from the inclined side wall 9, a flue can be formed between the water tank 7 and the inclined side wall 9, the separation distance is 1-3cm, under the distance, open fire is not formed between the water tank 7 and the inclined side wall 9, burning of the inclined side wall 9 is further reduced, furthermore, hot smoke flows upwards through the flue between the water tank 7 and the inclined side wall 9 and is discharged, in the process, the water tank 7 is completely covered by the hot smoke, the heating efficiency of water in the water tank 7 is further improved, on the other hand, good heating is also achieved on the inclined side wall 9, and therefore the heat utilization rate is further improved.

Preferably, a plurality of guide plates 8 are arranged on one side of the water tank 7 facing to the space between the inclined side walls 9, the guide plates 8 are parallel and are separated from one another, one side of each guide plate 8 is connected with the water tank 7, the other side of each guide plate 8 extends into the inclined side wall 9 and is connected with a steel reinforcement framework in the inclined side wall 9, the guide plates 8 are separated from one another, and an air flow channel is formed between the adjacent side walls. By adopting the mode, the water tank 7 is of a rectangular tank body structure, the flue gas is guided when the guide plate 8 is arranged on one side, and the water tank 7 is reinforced and strengthened on the other side, so that the fixing reliability of the water tank 7 is improved, and the thermal deformation risk of the water tank 7 is also reduced; meanwhile, the guide plate 8 also plays a role in heat transfer, the heated efficiency of the inclined side wall 9 is further improved, the temperature difference between the inclined side wall 9 and the drain pipe can be reduced, the uniformity of the water temperature in the temperature control tank body 1 is further improved, and the risk of local overheating is reduced.

In a preferred embodiment, in addition to the above aspect, the deflector 8 is a steel plate. The steel plate not only has good structural strength and rigidity, but also has good heat conductivity, and further improves the heat conduction efficiency while further ensuring the stability of the water tank 7.

As a preferable embodiment, based on the above scheme, a hose 12 is further connected to a water outlet of the water outlet pipe 11, and the length of the hose 12 ensures that the water outlet of the hose 12 can extend into the feeding tank body 2.

In the embodiment, through setting up the hose 12, make the water in the drain pipe can arrange to feeding in the cell body 2, such a way, make, when the temperature is not high in temperature control cell body 1, place the outlet pipe 11 of hose 12 in temperature control cell body 1, improve the rising speed of the water temperature in temperature control cell body 1, when the water temperature in temperature control cell body 1 reaches the requirement, for example reach 30 ℃, set up the delivery port of hose 12 in feeding cell body 2, with this rise speed that reduces the water temperature in temperature control cell body 1, through such a way, raiser can pass through the practical situation, handle the control to the water temperature in temperature control cell body 1, when the high temperature, can also stop heating device, and when needing to keep warm, can be selective set up hose 12 delivery port in temperature control cell body 1 or feeding cell body 2.

In a preferred embodiment, in addition to the above solution, the partition 3 is provided with a recess on the upper side for placing the hose 12. Sunken setting, on the one hand with hose 12 delivery port setting when feeding cell body 2, the convenient card to hose 12 is held, on the other hand makes sunken being located feeding cell body 2 design surface of water under, when hose 12 card was held in sunken, the water in the water tank 7 still can be smooth flow out in the hose 12.

In a preferred embodiment, in addition to the above solution, a floating plate 13 is further disposed at the water outlet of the hose 12, and the water outlet of the hose 12 is disposed below the floating plate 13, so that the water outlet of the hose 12 is kept below the surface of the water body. In this embodiment, the floating plate is a foam plate, and the floating plate 13 is arranged to make the water outlet of the hose 12 be located below the water level, so as to ensure that the water in the water tank 7 smoothly flows out, and flows out from the water level, and is matched with the heating position of the inclined side wall 9, and heat is supplied from the side wall and the upper part of the temperature control tank body 1, thereby avoiding the occurrence of external heat and internal cold at the interface of the temperature control tank body 1.

As a preferable embodiment, based on the above solution, further, the water outlet of the hose 12 is aligned with the middle position of the lower side of the floating plate 13, a buckle for clamping the hose 12 is arranged on the lower side of the floating plate 13, and a gap exists between the water outlet of the hose 12 and the lower side of the floating plate 13. So set up, ensure the normal outflow of warm water in the hose 12, but also avoid kickboard 13 to topple, more importantly, hot water blocks the back in meeting kickboard 13, and the four scattered outflow makes the hot water dispersion more even to, at this in-process, because hydrothermal impulsive force, kickboard 13 can constantly be removed at the surface of water, also further improvement hot water sneak into the homogeneity, reduce local overheat risk.

As a preferable embodiment, on the basis of the above scheme, the number of the temperature control tank bodies 1 is at least four, and the temperature control tank bodies 1 are uniformly distributed in the circumferential direction of the feeding tank body 2. In such a way, in the adaptive shrimp larva breeding stage, the breeding density of the shrimp larvae in the single feeding tank body 2 is reduced, and the separation baffle 3 is removed, so that the shrimp larvae are uniformly dispersed when entering the feeding tank body 2; and when the weather suddenly changes and is cooled down, the temperature of the water body in the feeding tank body 2 is reduced to an uncomfortable temperature, the heating devices are started, and the macrobrachium in each area in the feeding tank is gathered in the temperature control tank body 1 near each area or near the temperature control tank body 1, so that the death risk of the macrobrachium due to the temperature reduction is further reduced.

As a preferable implementation mode, on the basis of the above scheme, further, the upper edge of the temperature control tank body 1 exceeds the feeding tank body 2, a cover plate is detachably arranged on the edge of the upper side of the temperature control tank body 1, and the cover plate is detachably and hermetically matched with the upper side surface of the temperature control tank body 1. When the temperature reduces, can assemble the apron earlier and carry out the heat preservation of control by temperature change cell body 1, when the water temperature further reduces, rethread heating device heats, moreover, under the apron mating reaction, also further improvement the heating efficiency in the control by temperature change cell body 1.

Example 4, as shown in figures 1-4:

a breeding method for breeding macrobrachium nipponensis by adopting the feeding pond of the embodiment 3,

the culture method comprises the following steps:

step one, putting shrimp larvae: after the water in the feeding pool is poured, a partition plate 3 is installed in the temperature control pool body 1 to separate the water in the temperature control pool body 1 from the water in the feeding pool, then the water in the temperature control pool body 1 is pumped out by 40-60%, the water in the shrimp seedling cultivation field with the same volume is poured into the temperature control pool, the number of the shrimp seedlings is equally divided according to the number of the temperature control pool bodies 1 and then the shrimp seedlings are put into the temperature control pool body 1, so that each temperature control pool body 1 corresponds to the same number of the shrimp seedlings;

step two, adaptive cultivation: after the shrimp larvae are put in the first step, culturing the shrimp larvae in the temperature control tank body 1 for 4-10 days;

step three, large pond culture: after the shrimp larvae are cultured in the temperature control tank body 1 for 4 to 10 days, the clapboard 3 in the temperature control tank body 1 is dismantled, so that the temperature control tank body 1 is communicated with the feeding tank body 2;

step four, catching adult shrimps: feeding the macrobrachium in the pond body 2 to breed into the market specification, and fishing;

in the second step, when the temperature of the water in the temperature control tank body 1 is lower than 16 ℃, the water in the temperature control tank body 1 is heated by the heating device, and the floating plate 13 is placed in the temperature control tank body 1, so that the temperature of the water in the temperature control tank body 1 is between 20 and 38 ℃.

In the method for culturing the macrobrachium nipponensis, before the feeding tank body 2 is injected with water, the steps of cleaning and disinfecting the feeding tank body 2, planting aquatic plants in a shrimp nest and the like are also provided, the conventional steps of culturing the macrobrachium nipponensis at present are adopted, and are not described in detail in the embodiment, because the feeding tank of the embodiment is adopted, the emergency reaction of the shrimp seeds caused by the change of water can be greatly reduced, the risk of death of the shrimp seeds caused by the emergency reaction is reduced, on the other hand, the shrimp seeds can be more quickly adapted to the water quality in the feeding tank, and the growth and development lag period caused by the large change of the adaptive water components is shortened; and when the water temperature is reduced to the growth temperature which is not suitable for macrobrachium nipponensis and even the survival limit temperature, the water in the temperature control tank body 1 is heated by the heating device, so that the death risk caused by the temperature change of the shrimp larvae is reduced, and the survival rate of the shrimp larvae is greatly improved.

As a preferable embodiment, further based on the above scheme, in the second step, when the temperature of the water body in the temperature control tank body 1 is lower than 20 ℃, a cover plate is assembled on the temperature control tank body 1. When the water temperature is not too low, the temperature control tank body 1 is firstly insulated through the cover plate, and when the water temperature cannot be further reduced by the insulation measure, the heating device is started again for heating.

As a preferable embodiment, further based on the above scheme, in the second step, when the temperature of the water body in the temperature control tank body 1 reaches 30 ℃, the cover plate above the temperature control tank body 1 is removed, and the floating plate 13 is placed in the feeding tank body 2, so that the water outlet of the hose 12 is located in the feeding tank body 2. The problem that the macrobrachium is burnt by overhigh water temperature is avoided through the mode.

As a preferable embodiment, on the basis of the above scheme, in the first step, young shrimps are put into one of the temperature control tank bodies 1, observed for 4-5 hours, and if the activity of the young shrimps is not significantly reduced, young shrimps are put into the other temperature control tank bodies 1, and if the activity of the young shrimps is significantly reduced, a factor causing the reduction in the activity of the young shrimps is found out, and after the solution is solved, young shrimps are put into the other temperature control tank bodies 1. In the scheme, the young shrimps are fed once within 4-5 hours after being thrown, so that the activity of the young shrimps is obviously reduced to that the activity of the young shrimps is reduced, and the young shrimps do not take food, so that the factors for reducing the activity of the young shrimps are mainly concentrated on water components and temperature, and when the water components deviate from the designed components, the water components in the feeding tank body 2 and the temperature control tank body 1 are adjusted to recover the designed components; when the temperature of the water in the temperature control tank body 1 is too low, the water in the temperature control tank body 1 is heated by the heating device, and then the shrimp larvae are thrown in.

As a preferred embodiment, further based on the above scheme, in the first step, the young shrimp is released from beginning of april to middle of april.

Preferably, in the first step, the partition plate 3 is a first partition plate, and in the second step, when shrimp seeds are cultured in the temperature control tank body 1 for three to four days, the first partition plate is replaced by a second partition plate. First baffle is for sealing the form, the second baffle is the network plate form, form closed area through first baffle, it is amazing to the shrimp seedling in earlier stage to reduce the external world, when treating that the shrimp seedling adapts to three to four days gradually, change first baffle into the second baffle, make the water of feeding cell body 2 and the water intercommunication of temperature control cell body 1, make the shrimp seedling further adapt to the change of water, if there is obvious inadaptation, then can be immediately to change first baffle back, the shrimp seedling does not spread and gets into the cell body 2 of feeding, so can be convenient carry out remedial measure in the minizone, further reduce the shrimp seedling mortality.

As a preferable embodiment, further based on the above scheme, in the third step, when the ambient temperature is lowered and the temperature of the water body in the feeding tank body 2 is lower than 16 ℃, all the heating devices are activated to heat the water body in all the temperature-controlled tank bodies 1, and the floating plate 13 is placed in the feeding tank body 2. When shrimp larvae enter the feeding tank body 2 to be cultured in a large pond, if the weather suddenly changes, the temperature of a water body is reduced, the water body is heated by the heating device, a plurality of positions at the periphery of the feeding tank body 2 are formed to be provided with a warm water area, and the macrobrachium is gathered towards the area where the temperature control tank bodies 1 are located under the induction of temperature difference, so that the risk of large-area death is caused when the temperature of water is reduced.

In a preferred embodiment, in addition to the above scheme, in the fourth step, the shrimp seeds are once caught in two weeks from four months after being thrown, and the adult shrimps caught each time are selected to be returned to the feeding pond for cultivation until the pond cleaning and catching are completed in October or November. In this application, clear pond is catched for carrying out whole fishing for the macrobrachium in will feeding pond.

As a preferable embodiment, based on the above scheme, in the fourth step, each heating device is started 4-6 hours in advance when the fish is harvested, so that the temperature of the water body in the area where the temperature control tank body 1 is located is higher than the temperature of the water body at the rest positions in the feeding tank body 2, and the heating devices are controlled to ensure that the temperature of the water body in the temperature control tank body 1 is lower than 38 ℃.

As a preferable embodiment, further based on the above scheme, in the fourth step, in each fishing before pond cleaning fishing, a cover plate of each temperature control tank body 1 is installed one day before each fishing, a plurality of shrimp catching cages are placed in the temperature control tank bodies 1 and the feeding tank bodies 2 near the periphery of the temperature control tank bodies 1, when fishing is performed, the cover plate is taken down, each shrimp catching cage is pulled up, adult shrimps meeting the market requirement are selected, and adult shrimps which do not meet the market requirement are placed back into the feeding tank for continuous culture; when the pond is cleaned and fished, the macrobrachium in the feeding pond is completely fished by adopting a trawl mode.

In the scheme of this application, adopt batch fishing, every time fishing adopts catches big little mode of staying, can improve cultivation efficiency by a wide margin, adopt to catch big little mode of staying at present, generally all adopt the net to mend, at the fishing in-process, cause the damage to the shrimp easily, so, in this application, before fishing, form local warm water region through heating device earlier, attract the macrobrachium to collect, then catch, not only improved fishing efficiency by a wide margin, also shortened fishing time and reduced fishing intensity, and then reduce the damage to the shrimp, make the shrimp put back resume growth fast.

As a preferable embodiment, in the fourth step, when the shrimp catching cage is placed, bait is scattered in the temperature control tank body 1. The bait is scattered, so that the macrobrachium enter the shrimp catching cage automatically, and the damage to the macrobrachium in the catching process is further reduced.

The above embodiments are only used for illustrating the invention and not for limiting the technical solutions described in the invention, and although the present invention has been described in detail in the present specification with reference to the above embodiments, the present invention is not limited to the above embodiments, and therefore, any modification or equivalent replacement of the present invention is made; all such modifications and variations are intended to be included herein within the scope of this disclosure and the appended claims.

Claims

1. A method for culturing macrobrachium nipponensis is characterized in that: the method comprises the following steps:

in the second step, when the temperature of the water body in the temperature control pool is lower than 16 ℃, the water body in the temperature control pool is heated through a heating device, and the floating plate is placed in the temperature control pool to ensure that the temperature of the water body in the temperature control pool is between 20 and 38 ℃,

the heating device is a firewood-coal type heating device, the side wall of the temperature control tank body, which is far away from the feeding tank body, is an inclined side wall which is obliquely arranged, the inclined side wall is inclined from bottom to top towards the direction far away from the feeding tank body, and the firewood-coal type heating device is arranged below the inclined side wall;

the water tank is arranged outside the inclined side wall and is obliquely arranged along the inclined side wall, flame formed by burning the firewood and the coal is blocked by the water tank, a water inlet pipe is arranged at the bottom of the water tank, the water inlet pipe penetrates through the inclined side wall and extends into the feeding tank body, a water outlet pipe is arranged at the top of the water tank, the water outlet pipe penetrates through the inclined side wall and into the temperature control tank body, and the horizontal height of the water inlet pipe is lower than that of the water outlet pipe;

the water outlet of the water outlet pipe is also connected with a hose, and the length of the hose ensures that the water outlet of the hose can extend into the feeding pool body;

a water outlet of the hose is arranged on the lower side of the floating plate, so that the water outlet of the hose is kept below the liquid level of the water body;

in the second step, when the temperature of the water body in the temperature control pool body reaches 30 ℃, the cover plate above the temperature control pool body is detached, the floating plate is placed in the feeding pool body, and the water outlet of the hose is located in the feeding pool body.

2. The culture method according to claim 1, wherein: in the second step, when the temperature of the water body in the temperature control pool body is lower than 20 ℃, a cover plate is assembled on the temperature control pool body.

3. The culture method according to claim 2, wherein: in the first step, the young shrimps are thrown in the beginning of April to the middle of April.

4. A method as claimed in any one of claims 1 to 3, wherein: in the first step, young shrimps are put in one of the temperature control tanks firstly, observation is carried out for 4-5 hours, young shrimps are put in other temperature control tanks if the activity of the young shrimps is not obviously reduced, and if the activity of the young shrimps is obviously reduced, factors causing the activity reduction of the young shrimps are found out firstly and solved, and then young shrimps are put in other temperature control tanks.

5. A method as claimed in any one of claims 1 to 3, wherein: in the first step, the first partition plate is adopted as the partition plate, and in the second step, the first partition plate is replaced by a second partition plate when the young shrimps are cultured in the temperature control tank body for three to four days.

6. A method as claimed in any one of claims 1 to 3, wherein: in the third step, when the ambient temperature is reduced and the temperature of the water in the feeding tank is lower than 16 ℃, all the heating devices are started to heat up the water in all the temperature control tanks, and the floating plate is placed in the feeding tank.

7. A method as claimed in any one of claims 1 to 3, wherein: and in the fourth step, fishing is carried out once in two weeks from four months after the shrimp seeds are thrown, adult shrimps which do not meet the marketing requirement are selected from the adult shrimps which are fished each time, and the adult shrimps are put back into the feeding pond for breeding until the pond cleaning fishing is finished in October or November.

8. The culture method of claim 7, wherein: in the fourth step, each heating device is started 4-6 hours in advance when the fish is caught each time, so that the temperature of the water body in the area where the temperature control pool body is located is higher than the temperature of the water body at the rest positions in the feeding pool body, and the heating devices are controlled to ensure that the temperature of the water body in the temperature control pool body is lower than 38 ℃.

9. The culture method of claim 8, wherein: in the fourth step, in each time of fishing before pond cleaning fishing, the cover plate of each temperature control tank body is installed one day before each time of fishing, a plurality of shrimp catching cages are placed in the temperature control tank bodies and the feeding tank bodies near the periphery of the temperature control tank bodies, when fishing is carried out, the cover plate is taken down, each shrimp catching cage is pulled up, adult shrimps meeting the requirement of the market are selected, and adult shrimps which do not meet the requirement of the market are placed back into the feeding tank for continuous culture;

10. The culture method of claim 9, wherein: in the fourth step, when the shrimp catching cage is placed, bait is scattered in the temperature control tank body.