CN114532283A

CN114532283A - Murui cod shed pool matched graded culture pool and culture feeding method thereof

Info

Publication number: CN114532283A
Application number: CN202210301863.7A
Authority: CN
Inventors: 王兴强; 曹梅; 李佳阳; 钱诗悦; 卢雪旎; 丁华东
Original assignee: Yangzhong Xisha Special Breeding Co ltd; Jiangsu Ocean University
Current assignee: Yangzhong Xisha Special Breeding Co ltd; Jiangsu Ocean University
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2022-05-27

Abstract

The invention relates to a grading culture pond suitable for a Murui cod shed pond, which comprises a warm shed culture area formed by a dam body in a surrounding way, wherein a plurality of groups of warm sheds which are arranged independently are arranged in the warm shed culture area; the soil pond culture area is defined by a dam body, a central soil pond culture area defined by the dam body is arranged in the soil pond culture area, and a peripheral soil pond purification area is formed between the central soil pond culture area and the soil pond culture area; according to the invention, the culture temperature is controlled by the greenhouse, the culture period is prolonged, and the quick growth of Murui cod is promoted by feeding high-protein and high-fat feed; biological and physical purification is realized by dividing the soil pond culture area; by feeding low-protein and low-fat feed and combining low-density cultivation, the cultivation quality of Murui cod is improved.

Description

Murui cod shed pool matched graded culture pool and culture feeding method thereof

Technical Field

The invention relates to a fish culture and feeding method, in particular to a Murui cod shed pond matched graded culture pond and a culture and feeding method thereof.

Background

Along with the development of social economy in China, people have higher and higher demand on aquatic products, higher requirements on the quality of the aquatic products are provided, the eating is full, good and healthy, the eating quality is improved, the cultivation of high-quality aquatic products is developed, and the implementation of sustainable development of aquaculture becomes an important task at present.

Disclosure of Invention

The invention aims to solve the technical problem of the prior art and provides a Murui cod shed pool matched graded cultivation pool with reasonable structural design and a cultivation feeding method thereof.

The technical problem to be solved by the invention is realized by the following technical scheme that the Murray cod shed pool matched graded culture pool comprises,

the greenhouse comprises a greenhouse culture area defined by dam bodies, wherein a plurality of groups of greenhouses which are arranged independently are arranged in the greenhouse culture area, each greenhouse is composed of a greenhouse frame and a plastic film covered on the greenhouse frame, the plastic film is provided with at least one layer of low-light-transmittance film, an aerator is arranged in each greenhouse, the salinity of a culture water body in each greenhouse is 2-5 per mill, the temperature is 24-28 ℃, and an ecological ditch for discharging sewage is reserved between every two adjacent groups of greenhouses in each greenhouse;

the soil pond culture area is defined by a dam body, a central soil pond culture area defined by the dam body is arranged in the soil pond culture area, a peripheral soil pond purification area is formed between the central soil pond culture area and the soil pond culture area, a filtering dam is arranged in the peripheral soil pond purification area and at the water inlet end of the central soil pond culture area, a water retaining dam is arranged in the peripheral soil pond purification area, the water discharging end of the ecological ditch is communicated with the interior of the peripheral soil pond purification area, and a filter material for purifying water discharged by the ecological ditch is filled in the filtering dam.

The technical problem to be solved by the invention can be realized by the following technical scheme that the plastic film is suitable for the matching graded culture pond of the Murui cod shed pond, the plastic film is provided with two layers, the outermost layer of the plastic film is a white transparent film, and the innermost layer of the plastic film is a gray shading film.

The technical problem to be solved by the invention can be realized by the following technical scheme that the multi-stage culture pond is suitable for the supporting and grading culture pond of the Murui cod shed pond, four groups of warm sheds are arranged, each group of warm sheds is composed of four warm sheds which are distributed at equal intervals, and oxygen increasing pipes of the oxygen increasing machine are uniformly distributed in water areas of the four warm sheds in the same group.

The technical problem to be solved by the invention can be realized by the following technical scheme that the method is suitable for the supporting graded culture pond of the Murray cod shed pond, 1-3 m of side slopes are added on two sides of a dam body of a peripheral soil pond purification area, and reeds are planted on the side slopes.

The technical problem to be solved by the invention can be realized by the following technical scheme that the cultivation method is suitable for a grading cultivation pond matched with a Murui cod shed pond, a Z-shaped ecological floating bed is arranged in a peripheral soil pond purification area, and water peanuts are planted.

The technical problem to be solved by the invention can be solved by adopting the following technical scheme that the filtration dam is suitable for the grading culture pond matched with the Murui cod shed pond, the filtration dam is provided with two filtration dams, the filtration dam is built by hollow bricks, nano filter materials are filled in the filtration dam, each nano filter material comprises ceramsite, fine sand, broken stone, palm sheet and active carbon, a plate is laid on the top surface of the filtration dam, 1-2 filter screens are arranged at the top of the filtration dam, and the top end of each filter screen is higher than the top of the filtration dam.

The technical problem to be solved by the invention can be realized by the following technical scheme that the cultivation pond is suitable for a matching graded cultivation pond of the Murui cod shed pond, a zigzag ecological floating bed is arranged in the central soil pond cultivation area, aquatic plants are planted in the cultivation area, the aquatic plants comprise waterweeds, bitter herbs, water cress, water spinach and lotus roots, and the area of the ecological floating bed accounts for 30% of the total area of the water surface of the central soil pond cultivation area.

The technical problem to be solved by the invention can be solved by adopting the following technical scheme that the grading culture pond is suitable for the Murui cod shed pond, a water lifting device for lifting water and a sand filter tank for filtering water are arranged in a greenhouse culture area, a water inlet end of the water lifting device is connected to the periphery soil pond purification area, a water outlet end of the water lifting device is connected with an inlet end of the sand filter tank, and a water outlet end of the sand filter tank is connected to the greenhouse of the greenhouse culture area.

The technical problem to be solved by the invention can be realized by the following technical scheme, the method is suitable for the matching graded culture pond of the Murui cods shed pond, the total area ratio of the warm shed culture area and the soil pond culture area is 1: 0.5-2, and the total area ratio of the peripheral soil pond purification area and the central soil pond culture area is 1: 1.5-10.

A Murray cod breeding and feeding method uses any one of the technical schemes to carry out breeding and feeding by matching with a graded breeding pond, and comprises the following steps:

(1) the cultivation arrangement of Murui cod is as follows: the Murray cod is distributed in a greenhouse for cultivation, Murray cod with similar size and specification is concentrated in the greenhouse, the Murray cod is redistributed once every 1-2 months according to the size and specification, and the Murray cod is gradually transferred to a central soil pond cultivation area;

(2) arrangement in the peripheral soil pond purification area and the central soil pond culture area: 10-20 silver carp fries per mu, 10-20 bighead carp fries per mu, 50-100 giant freshwater shrimps per mu, 20-50 giant freshwater shrimps per mu, 100-200 freshwater mussels per mu and 200-400 spiral shells per mu are all put in the peripheral soil pond purification area and the central soil pond culture area, and a proper amount of beneficial microorganisms are sprayed every 10-20 days, wherein the beneficial microorganisms comprise bacillus subtilis, lactic acid bacteria, photosynthetic bacteria and EM (effective microorganisms);

(3) feeding in a greenhouse culture area and a soil pond culture area: feeding a high-protein and high-fat particle mixed bait I in a greenhouse culture area, feeding a low-protein and low-fat particle mixed bait II in a central soil pond culture area, and not feeding any bait in a peripheral soil pond purification area;

the formula of the compound bait I is as follows: 33-43% of white fish meal; 1-5% of wheat middling; 1-3% of flour; 0-2% of bran; 5-15% of cottonseed meal; 5-15% of peanut meal; 15-25% of soybean meal; 3-9% of corn protein powder; 1-3% of fish oil; 1-3% of soybean oil; 1-3% of monocalcium phosphate; 1-3% of zeolite powder; 0.1-0.3% of choline; 0.1-0.3% of betaine; 0.1-0.3% of allicin; 0-2% of premix for freshwater fish;

the formula of the compound bait II is as follows: 1-4% of white fish meal; 15-23% of wheat middling; 12-18% of flour; 12-18% of rice bran; 10-18% of bran; 7-13% of rapeseed meal; 2-8% of cottonseed meal; 2-8% of peanut meal; 7-13% of soybean meal; 1-3% of monocalcium phosphate; 1-3% of zeolite powder; 0.1-0.3% of choline; 0-0.2% of betaine; 0-0.2% of allicin; 0-2% of premix for freshwater fish;

(4) water treatment of a greenhouse culture area and a soil pond culture area: sewage in the greenhouse cultivation area is discharged into the peripheral soil pond purification area through the ecological ditch, due to the arrangement of the water blocking dam, the sewage cannot immediately enter the central soil pond cultivation area but enters the peripheral soil pond purification area, part of the sewage purified by the filtering dam is lifted into the sand filter tank through the water lifting equipment, the sewage enters the greenhouse after being filtered, and the other part of the sewage is supplemented into the central soil pond cultivation area after being filtered by the filtering dam at the water inlet end of the central soil pond cultivation area, so that the sewage is recycled.

Compared with the prior art, the invention has the beneficial technical effects that: according to the invention, the culture temperature is controlled by the greenhouse, the culture period is prolonged, and the quick growth of Murui cod is promoted by feeding high-protein and high-fat feed; biological and physical purification is realized by dividing the soil pond culture area; by feeding low-protein and low-fat feed and combining low-density cultivation, the cultivation quality of Murui cod is improved, and the value of commodities is improved, so that the aims of high yield, high efficiency and environmental protection are fulfilled;

(1) a new cultivation mode of 'greenhouse cultivation + outdoor soil pond + outdoor purification pond' is established, and partitioned cultivation and accurate feeding of cultivation feed are realized, so that the labor intensity is reduced; by transplanting plants and shellfish and matching with a small amount of other filter-feeding fishes, the cultivation wastewater is recycled after self-purification;

(2) ecological treatment is carried out on the Murray cod breeding tail water by using a physical and biological method, and comprehensive utilization of the breeding tail water is realized by ecological mixed breeding and application of a microecological preparation;

(3) feeding high-protein and high-fat compound feed with high price in the early stage of cultivation to promote the rapid growth of Murray cod; along with the rapid growth of Mesorys pollack, low-protein and low-fat feed with low price is fed, so that the breeding cost is reduced, and the body color and meat quality of Mesorys pollack are improved;

(4) the economic benefit brought by the varieties of Murray cod and mixed culture enables the culture mode to be initially successful, and the method is worthy of popularization;

(5) the technical measures of water feeding and draining modification, biological purification, artificial wetland, aquatic plant planting and the like are adopted to carry out treatment on the tail water of pond culture areas and industrial culture, and the resource utilization of the tail water of the culture is promoted; through the internal complete water circulation and the efficient cyclic utilization scheme, natural resources such as water resources and soil resources are ensured, and the organic fertilizer can be well protected under the condition of effective utilization.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

In the figure, 1, a greenhouse cultivation area; 2. warming the greenhouse; 3. a central soil pond culture area; 4. a peripheral soil pond purification area; 5. filtering the dam; 6. a water retaining dam; 7. an aerator; 8. an ecological ditch; 9. a sand filtration tank.

Detailed Description

The embodiments of the present invention will be further described with reference to the accompanying drawings so as to facilitate the further understanding of the present invention by those skilled in the art, and do not limit the right thereto.

Example 1, referring to fig. 1, a haddock tank-matching graded cultivation pond, comprising,

the greenhouse comprises a greenhouse culture area 1 defined by a dam body, wherein a plurality of groups of mutually independent greenhouses 2 are arranged in the greenhouse culture area 1, the specification of the greenhouse 2 is 40m multiplied by 9m multiplied by 1.5m, the greenhouse 2 is composed of a greenhouse frame and a plastic film covered on the greenhouse frame, the plastic film is provided with at least one layer of low-light-transmittance film, an aerator 7 is arranged in the greenhouse 2, the power of the aerator 7 is 5.5kw, the salinity of culture water in the greenhouse 2 is 2%, the temperature can be 24 ℃, and an ecological ditch 8 for sewage discharge is reserved between two adjacent groups of greenhouses 2 in the greenhouse 2;

the soil pond culture area is defined by a dam body, a central soil pond culture area 3 defined by the dam body is arranged in the soil pond culture area, a peripheral soil pond purification area 4 is formed between the central soil pond culture area 3 and the soil pond culture area, the peripheral soil pond purification area 4 is 400m in circumference, 8m in width and 2.5m in depth, filtering dams 5 are arranged in the peripheral soil pond purification area 4 and at the water inlet end of the central soil pond culture area 3, each filtering dam 5 is 3m in width and 8m in length, a water blocking dam 6 is arranged in the peripheral soil pond purification area 4, specifically, the water inlet end of the central soil pond culture area 3 and the water outlet end of the greenhouse culture area 1 are positioned at two sides of the water blocking dam 6, so that sewage discharged from the greenhouse culture area 1 can flow into the central soil pond culture area 3 or enter water lifting equipment after being filtered by two filtering dams 5, the water discharge end of the ecological ditch 8 is communicated with the interior of the peripheral soil pond purification area 4, and the filtering dam 5 is filled with a filtering material for purifying water discharged from the ecological ditch 8.

Example 2 referring to fig. 1, a haddock tank-matching graded cultivation pond, comprising,

the greenhouse cultivation area 1 is formed by enclosing a dam body, a plurality of groups of mutually independent greenhouses 2 are arranged in the greenhouse cultivation area 1, the specification of the greenhouse 2 is 60m multiplied by 12m multiplied by 3.5m, the greenhouse 2 is composed of a greenhouse frame and a plastic film covered on the greenhouse frame, the plastic film is provided with at least one layer of low-light-transmittance film, an aerator 7 is arranged in the greenhouse 2, the power of the aerator 7 is 5.5kw, the salinity of cultivation water in the greenhouse 2 is 5%, the temperature can be 28 ℃, and an ecological ditch 8 for sewage discharge is reserved between two adjacent groups of greenhouses 2 in the greenhouse 2;

In the embodiment 3, the grading culture pond matched with the Murray cod shed pond in the

embodiment

1 or 2, the plastic films are provided with two layers, the outermost layer of the plastic film is a white transparent film, and the innermost layer of the plastic film is a gray shading film.

Embodiment 4,

embodiment

1 or 2 the supporting hierarchical breed pond that is applicable to black rui cod canopy pond, warm canopy 2 be provided with four groups, every group warm canopy 2 comprises four equidistant warm sheds 2 that distribute, oxygen-increasing machine 7's oxygenation pipe evenly distributed in the same group four warm sheds 2's water territory.

In the embodiment 5, the graded cultivation pond matched with the Murray cod shed pond in the

embodiment

1 or 2 is additionally provided with 1-3 m side slopes at two sides of the dam body of the peripheral soil pond purification area 4, specifically 2m side slopes, and reeds are planted on the side slopes.

In the embodiment 6, the grading culture pond matched with the Murray cod shed pond in the

embodiment

1 or 2, a Z-shaped ecological floating bed is arranged in the peripheral soil pond purification area 4, and the water peanuts are planted.

Embodiment 7,

embodiment

1 or 2 be applicable to supporting hierarchical breed pond in black rui cod canopy pond, filter dam 5 be provided with two, filter dam 5 build by hollow brick and form, its internal packing has the nanometer filter media, the nanometer filter media includes haydite, fine sand, rubble, palm piece and active carbon, the top surface of filter dam 5 is laid panel and top and is set up 1~2 filter screens, specifically, the filter screen can be 2, the top of filter screen is higher than the top of filter dam 5.

In the embodiment 8, the grading culture pond suitable for the Murui cod shed pond in the

embodiment

1 or 2, the central soil pond culture area 3 is internally provided with a Z-shaped ecological floating bed, aquatic plants are planted in the ecological floating bed, the aquatic plants comprise waterweed, bitter grass, water cress, water spinach and lotus roots, and the area of the ecological floating bed accounts for 30% of the total area of the water surface of the central soil pond culture area 3.

Embodiment 9, the grading culture pond adapted to a mary cod shed pond described in

embodiment

1 or 2, wherein a water lifting device for lifting water and a sand filter tank 9 for filtering water are provided in the greenhouse culture area 1, specifically, the water lifting device may be a water pump, the specification and model of the sand filter tank 9 may be selected according to the use requirement, the water inlet end of the water lifting device is connected to the peripheral soil pond purification area 4, the water outlet end of the water lifting device is connected to the inlet end of the sand filter tank 9, and the water outlet end of the sand filter tank 9 is connected to the greenhouse 2 of the greenhouse culture area 1.

Example 10, the grading culture pond adapted to the shack pond of morus pollack as described in example 1 or 2, the total area ratio of the warm shack culture area 1 to the soil pond culture area is 1:0.5, and the total area ratio of the peripheral soil pond purification area 4 to the central soil pond culture area 3 is 1: 1.5.

Example 11, example 1 or 2 the grading cultivation pond adapted to the shack pond of pollack, the total area ratio of the greenhouse cultivation area 1 to the soil pond cultivation area is 1: 2, and the total area ratio of the peripheral soil pond purification area 4 to the central soil pond cultivation area 3 is 1: 10.

Embodiment 12 is a breeding and feeding method for morus pollack, which uses the graded breeding pond matched with the morus pollack shed pond in any one of embodiments 1 to 11 to breed and feed, and comprises the following steps:

(1) the cultivation arrangement of Murui cod is as follows: the Murui cod is distributed in the warm sheds 2 for cultivation, Murui cod with similar size and specification is concentrated in one warm shed 2, the size and specification of the Murui cod can be customized according to use requirements, the Murui cod is redistributed once every 1 month according to the size and specification, the Murui cod is gradually transferred into the warm sheds 2 in the central soil pond cultivation area 3, and the cultivation time of each warm shed 2 is 1 month;

(2) arrangement in the peripheral soil pond purification area 4 and the central soil pond culture area 3: 10 silver carp fries/mu, 10 bighead carp fries/mu, 50 giant freshwater prawn fries/mu, 20 giant freshwater prawn fries/mu, 100 freshwater mussels/mu and 200 snails/mu are put in the peripheral soil pond purification area 4 and the central soil pond culture area 3, a proper amount of beneficial microorganisms are sprinkled every 10 days, the use amount of the beneficial microorganisms can be selected according to the use requirement, and the beneficial microorganisms comprise bacillus subtilis, lactic acid bacteria, photosynthetic bacteria and EM (effective microorganisms);

(3) feeding in a greenhouse culture area 1 and a soil pond culture area: feeding a high-protein and high-fat particle mixed bait I to the greenhouse culture area 1, feeding a low-protein and low-fat particle mixed bait II to the central soil pond culture area 3, and not feeding any bait to the peripheral soil pond purification area 4;

the formula of the compound bait I is as follows: 40 percent of white fish meal; 3.7 percent of wheat middling; 2% of flour; 1% of bran; 12% of cottonseed meal; 12% of peanut meal; 19% of soybean meal; 5% of corn protein powder; 1% of fish oil; 1% of soybean oil; 1% of calcium dihydrogen phosphate; 1% of zeolite powder; 0.1% of choline; 0.1% of betaine; 0.1 percent of allicin; 1% of premix for freshwater fish;

the formula of the compound bait II is as follows: 1.7 percent of white fish meal; 20% of wheat middling; 15% of flour; 15% of rice bran; 15% of bran; 10% of rapeseed meal; 5% of cottonseed meal; 5% of peanut meal; 10% of soybean meal; 1% of calcium dihydrogen phosphate; 1% of zeolite powder; 0.1% of choline; 0.1% of betaine; 0.1% of allicin; 1% of premix for freshwater fish;

(4) water treatment of the greenhouse culture area 1 and the soil pond culture area: the sewage in the greenhouse 2 in the greenhouse cultivation area 1 is discharged into the peripheral soil pond purification area 4 through the ecological ditch 8, the sewage does not immediately enter the central soil pond cultivation area 3 but enters the peripheral soil pond purification area 4 due to the arrangement of the water blocking dam 6, part of the sewage purified by the filtering dam 5 is lifted into the sand filter tank 9 through the water lifting equipment, the filtered sewage enters the greenhouse 2, and the other part of the sewage is filtered by the filtering dam 5 at the water inlet end of the central soil pond cultivation area 3 and then is supplemented into the central soil pond cultivation area 3, so that the sewage is recycled.

Embodiment 13 is a breeding and feeding method of pollack, which uses the graded breeding pond matched with the pollack shed pond in any one of embodiments 1 to 11 to breed and feed, and comprises the following steps:

(1) the cultivation arrangement of Murui cod is as follows: the Murui cod is distributed in the greenhouse 2 for cultivation, Murui cod with similar size and specification is concentrated in one greenhouse 2, the size and specification of the Murui cod can be customized according to use requirements, the Murui cod is redistributed according to the size and specification every 2 months, specifically, the Murui cod is redistributed according to the size and specification every 2 months, and the Murui cod is gradually transferred into the greenhouse 2 in the central soil pond cultivation area 3, namely the cultivation time of each greenhouse 2 is 2 months;

(2) arrangement in the peripheral soil pond purification area 4 and the central soil pond culture area 3: 20 silver carp fries/mu, 20 bighead carp fries/mu, 100 giant freshwater prawn fries/mu, 50 giant freshwater prawn fries/mu, 200 freshwater mussels/mu and 400 snail/mu are put in the peripheral soil pond purification area 4 and the central soil pond culture area 3, a proper amount of beneficial microorganisms are sprinkled every 20 days, the use amount of the beneficial microorganisms can be selected according to the use requirement, and the beneficial microorganisms comprise bacillus subtilis, lactic acid bacteria, photosynthetic bacteria and EM (effective microorganisms);

the formula of the compound bait I is as follows: 41.1 percent of white fish meal; 4 percent of wheat middling; 3% of flour; 2% of bran; 6 percent of cottonseed meal; 10% of peanut meal; 10% of soybean meal; 9% of corn protein powder; 3% of fish oil; 3% of soybean oil; 3% of calcium dihydrogen phosphate; 3 percent of zeolite powder; 0.3 percent of choline; 0.3 percent of betaine; 0.3 percent of allicin; 2% of freshwater fish premix;

the formula of the compound bait II is as follows: 2.3 percent of white fish meal; 15 percent of wheat middling; 12% of flour; 15% of rice bran; 10% of bran; 10% of rapeseed meal; 6% of cottonseed meal; 8% of peanut meal; 13% of soybean meal; 3% of calcium dihydrogen phosphate; 3 percent of zeolite powder; 0.3 percent of choline; 0.2 percent of betaine; 0.2 percent of allicin; 2% of freshwater fish premix;

(4) water treatment of the greenhouse culture area 1 and the soil pond culture area: the sewage in the greenhouse 2 in the greenhouse cultivation area 1 is discharged into the peripheral soil pond purification area 4 through the ecological ditch 8, due to the arrangement of the water blocking dam 6, the sewage cannot immediately enter the central soil pond cultivation area 3 but enters the peripheral soil pond purification area 4, part of the sewage purified by the filtering dam 5 is lifted into the sand filter tank 9 through the water lifting equipment and enters the greenhouse 2 after being filtered, and the other part of the sewage is supplemented into the central soil pond cultivation area 3 after being filtered by the filtering dam 5 at the water inlet end of the central soil pond cultivation area 3, so that the sewage can be recycled.

Example 14, a Murray cod farming feeding method trial, comprising the steps of:

the test site is selected as an aquatic breeding farm in Yangzhong city of Jiangsu province, the aquatic breeding farm adopts a greenhouse pool matched with a grading culture pond in any one of the embodiments 1-13 to culture, the greenhouse culture area of the greenhouse pool matched with the grading culture pond is 450m multiplied by 90m, the greenhouse 2 is 50m multiplied by 10m multiplied by 2m, the salinity of the culture water in the greenhouse 2 is 3 per mill, the temperature is 25 ℃, the specification of the soil pool culture area is 675m multiplied by 90m, the circumference of the peripheral soil pool purification area is 4, 1500m, 9m in width and 2.6m in depth, 10.12g of Mesojous fries are put into the greenhouse 2 to culture in 2021 year 6 month 1 day, Mesojous of similar size are concentrated in one greenhouse 2, the culture density is 15 tails/m of the culture water, the Mesojous fries are redistributed once by size every 1 month, and the Mesojous fries are gradually transferred into the greenhouse 2 in the central soil pool culture area 3, namely, the cultivation time of each greenhouse 2 is 1 month, after four-wheel pond division, the maximum-size Murui cod reaches 420.95g in 10 months and 1 days in 2021, 420.95g of the Murui cod screened by the greenhouse 2 is transferred into the central soil pond cultivation area 3 in 10 months and 1 days in 2021, 10 tails/mu of silver carp fries, 10 tails/mu of bighead carp fries, 50 tails/mu of Macrobrachium rosenbergii fries, 20 tails/mu of Macrobrachium nipponense fries, 100 shells/mu of river mussels and 200 shells/mu are all cultivated in the peripheral soil pond purification area 4 and the central soil pond cultivation area 3, a proper amount of beneficial microorganisms of bacillus subtilis, lactic acid bacteria, photosynthetic bacteria and EM bacteria are sprayed every 10 days, during the alternate use, during the period, the greenhouse cultivation area 1 is fed with high-fat granules in cooperation with bait I, the central soil pond cultivation area 3 is fed with low-fat granules in cooperation with bait, and the peripheral soil purification area 4 is not fed with high-fat granules in cooperation with nutrient granules in cooperation with bait II (high-fat granules in cooperation with nutrient components in the nutrient table 1), at 11 months and 1 day in 2021, the Murray cod standard reaches 623.04g, the price is increased by 2.25 times, and the product can be sold;

during cultivation, sewage in a greenhouse 2 in a greenhouse cultivation area 1 is discharged into a peripheral soil pond purification area 4 through an ecological ditch 8, due to the arrangement of a water blocking dam 6, the sewage does not immediately enter a central soil pond cultivation area 3 but enters the peripheral soil pond purification area 4, a part of the sewage purified by a filtering dam 5 is lifted into a sand filter tank 9 through water lifting equipment, the sewage enters the greenhouse 2 after being filtered, the other part of the sewage is filtered by a filtering dam 5 at the water inlet end of the central soil pond cultivation area 3 and then is supplemented into the central soil pond cultivation area 3, so that the sewage is recycled, water quality detection is carried out at 10 months 14 in 2021 year, water quality indexes are shown in table 2, and the filtered water quality indexes are found to be obviously improved, and the water quality standard is close to the level 1 water quality standard (the water quality purification condition is shown in table 2) after being filtered by the sand filter tank 9;

weight comparison of Murui cod when it was cultivated using Murui cod shed pond in combination with graded cultivation pond/traditional seedling soil pond (Table 3):

health status comparison of Murui cod when cultivated in a Murui cod shed pond matched graded cultivation pond/traditional seedling soil pond (Table 4):

price comparison of Murui cod in a Murui cod shed pond matched graded cultivation pond/traditional seedling raising soil pond for cultivation (Table 5):

Claims

1. the utility model provides a supporting hierarchical breed pond in black rui cod canopy pond which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

2. The Murray cod shed pond matching grading culture pond according to claim 1, characterized in that: the plastic film is provided with two layers, wherein the outermost layer of plastic film is a white light-transmitting film, and the innermost layer of plastic film is a gray shading film.

3. The Murray cod shed pond matching grading culture pond according to claim 1, characterized in that: the greenhouse be provided with four groups, every group greenhouse comprises four equidistant temperature cots that distribute, oxygen-increasing pipe evenly distributed of oxygen-increasing machine in the waters of four temperature cots of same group.

4. The Murray cod shed pond matching grading culture pond according to claim 1, characterized in that: and (3) adding side slopes of 1-3 m on two sides of the dam body of the peripheral soil pond purification area, and planting reeds on the side slopes.

5. The Murray cod shed pond matching grading culture pond according to claim 1, characterized in that: and a Z-shaped ecological floating bed is arranged in the peripheral soil pond purification area, and the water peanuts are planted.

6. The Murray cod shed pond matching grading culture pond according to claim 1, characterized in that: the filter dam be provided with two, the filter dam be built by the air brick and form, its internal packing has the nanometer filter media, the nanometer filter media includes haydite, fine sand, rubble, palm piece and active carbon, the top surface of filter dam is laid panel and top and is set up 1~2 filter screens, the top of filter screen is higher than the top of filter dam.

7. The Murray cod shed pond matching grading culture pond according to claim 1, characterized in that: the central soil pond culture area is internally provided with a Z-shaped ecological floating bed, aquatic plants are planted, the aquatic plants comprise waterweeds, bitter herbs, water cress, water spinach and lotus roots, and the area of the ecological floating bed accounts for 30% of the total area of the water surface of the central soil pond culture area.

8. The Murray cod shed pool matched graded cultivation pool as claimed in claim 1, which is characterized in that: the greenhouse comprises a greenhouse cultivation area, a water lifting device and a sand filter tank, wherein the water lifting device is arranged in the greenhouse cultivation area and used for lifting water, the sand filter tank is arranged for filtering water, a water inlet end of the water lifting device is connected to the periphery soil pond purification area through a pipe, a water outlet end of the water lifting device is connected with an inlet end of the sand filter tank, and a water outlet end of the sand filter tank is connected to a greenhouse in the greenhouse cultivation area through a pipe.

9. The Murray cod shed pond matching grading culture pond according to claim 1, characterized in that: the total area ratio of the greenhouse culture area to the soil pond culture area is 1: 0.5-2, and the total area ratio of the peripheral soil pond purification area to the central soil pond culture area is 1: 1.5-10.

10. A cultivation and feeding method of Murray cod, which uses a Murray cod shed pool matched graded cultivation pool to carry out cultivation and feeding, and is characterized in that: the method comprises the following steps: