High-quality ecological fish culture method

Abstract

The invention relates to a high-quality ecological fish culture method, and belongs to the technical field of fish culture. The high-quality ecological fish culture method comprises the steps that a soil fish pond is selected, artificial padding is laid at the bottom of the fish pond, and oxygen is supplied into the pond while a water source is introduced; after the water temperature and dissolved oxygen of the soil fish pond are adjusted, fries are put in; feeding the fries with compound feed every day, and regularly changing water in the soil fish pond. The fishes bred by the breeding method are healthy, the taste and texture of the fishes can be obviously improved, the quality of fish products is ensured, in addition, the specific fish feed is combined, and the feed is balanced in nutritional ingredients and reasonable in proportion. And through specific formula matching, the effect and effect of each nutritional ingredient are further enhanced. The growth rate and the immunity of the fishes are effectively improved while the growth requirements of the fishes are met.

Description

Technical Field

[0001] The invention belongs to the technical field of fish breeding and relates to a high-quality ecological fish breeding method. Background Art

[0002] With the increasing shortage of global water resources, the continuous reduction of land for aquaculture, and the continuous increase in aquaculture costs, the economic benefits of traditional pond aquaculture are gradually decreasing. At the same time, the problem of water pollution control is becoming increasingly serious, which makes the treatment of aquaculture wastewater in traditional pond aquaculture face higher requirements and standards, thereby further increasing the overall cost of the aquaculture industry. In contrast, the facility aquaculture model is gradually becoming a new trend in the aquaculture industry because of its many advantages such as high-density aquaculture, high output benefits, environmentally friendly management, and effective disease prevention and control.

[0003] Solid pellet feeds are the most commonly used in the aquaculture industry. However, fish have difficulty absorbing some of the nutrients in them. When solid pellet feeds are submerged in water for a long time, they swell, which reduces the attractiveness of the feed. At the same time, long-term immersion also causes feed particles to settle to the bottom of the water, making it difficult for fish to prey on these particles. The deposited feed is broken down by microorganisms and eventually turns into sludge, which can have a negative impact on water quality. Summary of the invention

[0004] The object of the present invention is to provide a high-quality ecological fish farming method. The fish farmed by the farming method of the present invention are not only healthy, but also can significantly improve the taste and texture of the fish, ensuring the quality of the fish products. In addition, combined with a specific fish feed, the feed has balanced nutrients and a reasonable ratio. Through its unique formula, the role and effect of each nutrient component are further enhanced. While meeting the needs of fish growth, it effectively promotes the improvement of fish growth rate and immunity.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A high-quality ecological fish farming method comprises the following steps:

[0007] S1. Select a soil fish pond, lay artificial bedding at the bottom of the fish pond, introduce water and supply oxygen to the pond;

[0008] S2. After adjusting the water temperature and dissolved oxygen in the soil fish pond, put in the fry;

[0009] S3. Feed the fry with compound feed every day and change the water in the earthen fish pond regularly.

[0010] As a preferred technical solution of the present invention, in step S1, the wall thickness of the earthen fish pond is ≥30 cm; the distance between the earthen fish pond and the water source is ≤50 m; and the depth of the earthen pond is 2-3 m.

[0011] As a preferred technical solution of the present invention, in step S1, the thickness of the artificial bedding materials, namely, silt, kaolin and chopped straw, is 3 cm.

[0012] As a preferred technical solution of the present invention, in step S2, the water temperature of the soil fish pond is 25-35°C; and the dissolved oxygen content of the fish pond water is greater than 2 mg / L.

[0013] As a preferred technical solution of the present invention, in step S2, the fry are soaked in salt water and then put into the water, with the amount of fry put in being 2800-3200 per mu.

[0014] As a preferred technical solution of the present invention, in step S3, the replacement volume of the regular water change is ≤30%, and the frequency of the regular water change is 3-7 days / time; the number of times of feeding the compound feed is 2-3 times / day, and the amount of the compound feed added is 3-10% of the total weight of the fish.

[0015] As a preferred technical solution of the present invention, the method for preparing the compound feed comprises the following steps:

[0016] Step 1, in a light-proof environment, mixing the dried konjac flour with an ethanol aqueous solution and performing ultrasonic extraction, centrifuging to remove solid particles, rotary evaporating to remove the solvent, and vacuum drying to obtain a konjac extract;

[0017] Step 2: Under an inert atmosphere, the basic feed, attapulgite and konjac extract are mixed and then ground, sieved, deionized water and glutathione are added, stirred and mixed, allowed to stand, filtered, and vacuum dried to obtain a mixture;

[0018] Step 3: Under an inert atmosphere, the monomer solution is sprayed onto the mixture, stirred at a constant temperature, filtered, washed, and vacuum dried to obtain a compound feed.

[0019] As a preferred technical solution of the present invention, in step one, the ultrasonic extraction is performed by ultrasonicating at 20-30kHz for 15-20 minutes and then extracting for 20-24 hours; the centrifugal separation is performed by centrifuging at a speed of 3000-3200 r / min for 15-20 minutes; the dosage ratio of the konjac flour and the ethanol aqueous solution is 1 g: 9-10 mL; and the concentration of the ethanol aqueous solution is 60 wt%.

[0020] As a preferred technical solution of the present invention, in step 2, the inert atmosphere is a nitrogen atmosphere; the sieving is through a 200 mesh sieve; the stirring and mixing is stirring at a speed of 300-500rpm for 30-45min; the standing time is 2-3h; the vacuum drying is vacuum drying at a temperature of 70-80°C to constant weight; the mass ratio of the basic feed, attapulgite, konjac extract, deionized water and glutathione is 95-98:2.2-2.6:1.0-1.2:120-130:2.0-2.3;

[0021] As a preferred technical solution of the present invention, in step three, the inert atmosphere is a nitrogen atmosphere; the constant temperature stirring is stirring at a temperature of 40-50°C for 4-5h; the washing is rinsing with anhydrous ethanol for 3 times; the vacuum drying is vacuum drying at a temperature of 80°C to constant weight; the monomer solution is prepared by mixing citronellal, ethyl vanillin, deionized water and anhydrous ethanol in a mass ratio of 1.8-2.2:3.0-3.6:5-6:35-40; the mass ratio of the mixture to the monomer solution is 100-110:25-28.

[0022] As a preferred technical solution of the present invention, the basic feed comprises the following components by weight:

[0023] 15-20 parts of fish meal, 20-25 parts of soybean meal, 15-20 parts of corn flour, 10-15 parts of wheat flour, 5-10 parts of rapeseed meal, 3-5 parts of fish oil, 1-2 parts of monocalcium phosphate, 1-2 parts of vitamin premix, 1-2 parts of mineral premix and 1-2 parts of yeast powder.

[0024] As a preferred technical solution of the present invention, the vitamin premix includes vitamin A 7000IU / kg, vitamin B 1 4mg / kg, vitamin B 2 3mg / kg, vitamin D 600IU / kg, vitamin E 30IU / kg and vitamin K 6mg / kg; the mineral premix includes ferrous sulfate 220mg / kg, calcium hydrogen phosphate 130mg / kg, copper sulfate 80mg / kg, zinc sulfate 200mg / kg and manganese sulfate 90mg / kg.

[0025] Beneficial effects of the present invention:

[0026] 1. The fish cultured by the culture method of the present invention are not only healthy, but also can significantly improve the taste and texture of the fish, ensuring the quality of the fish products. In addition, combined with a specific fish feed, the feed has balanced nutrients and a reasonable ratio. Through its unique formula, the role and effect of each nutrient component are further enhanced. While meeting the growth requirements of the fish, it effectively promotes the improvement of the fish growth rate and immunity.

[0027] 2. The present invention can improve the cohesiveness and stability of feed by combining konjac extract and attapulgite, reduce processing breakage, and the complementary effect of the two enhances feed stability. Glutathione and mineral premixes act to improve utilization. The present invention enhances compound feed stability and forms a coating structure through a specific combination, thereby improving hydrophobic stability and utilization efficiency. DETAILED DESCRIPTION

[0028] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in combination with the embodiments.

[0029] A high-quality ecological fish farming method comprises the following steps:

[0030] S1. Select a soil fish pond, lay artificial bedding at the bottom of the fish pond, introduce water source and supply oxygen to the pond; wherein the wall thickness of the soil fish pond is ≥30cm; the distance between the soil fish pond and the water source is ≤50m; the depth of the soil pond is 2-3m; the thickness of the artificial bedding is 3cm for silt, kaolin and chopped straw;

[0031] S2. After adjusting the water temperature and dissolved oxygen of the soil fish pond, the fry are put in; wherein the water temperature of the soil fish pond is 25-35° C.; the dissolved oxygen content of the fish pond water is greater than 2 mg / L; the fry are put in after being soaked in salt water, and the amount of fry put in is 2800-3200 per mu;

[0032] S3. Feed the fry with compound feed every day, and change the water in the soil fish pond regularly; wherein the replacement volume of the regular water change is ≤30%, and the regular water change frequency is 3-7 days / time; the number of times of feeding the compound feed is 2-3 times / day, and the amount of the compound feed added is 3-10% of the total weight of the fish.

[0033] Example 1

[0034] The preparation method of the compound feed comprises the following steps:

[0035] Step 1, in a light-proof environment, mixing the dried konjac flour with the ethanol aqueous solution and performing ultrasonic extraction, centrifuging to remove solid particles, rotary evaporating to remove the solvent, and vacuum drying to obtain the konjac extract; wherein the ultrasonic extraction is to extract for 20 hours after ultrasonication at 20kHz for 15 minutes; the centrifugal separation is to centrifuge at a speed of 3000r / min for 15 minutes; the usage ratio of the konjac flour and the ethanol aqueous solution is 1g:9mL; the concentration of the ethanol aqueous solution is 60wt%;

[0036] Step 2, under an inert atmosphere, the basic feed, attapulgite and konjac extract are mixed and then ground, sieved, deionized water and glutathione are added, stirred and mixed, allowed to stand, filtered, and vacuum dried to obtain a mixture; wherein the inert atmosphere is a nitrogen atmosphere; the sieving is through a 200-mesh sieve; the stirring and mixing is stirring at a speed of 300 rpm for 30 minutes; the standing time is 2 hours; the vacuum drying is vacuum drying at a temperature of 70°C to constant weight; the mass ratio of the basic feed, attapulgite, konjac extract, deionized water and glutathione is 95:2.2:1.0:120:2.0;

[0037] Step three, under an inert atmosphere, spray the monomer solution onto the mixture, stir at a constant temperature, filter, wash, and vacuum dry to obtain a compound feed; wherein the inert atmosphere is a nitrogen atmosphere; the constant temperature stirring is stirring at 40°C for 4 hours; the washing is rinsing with anhydrous ethanol for 3 times; the vacuum drying is vacuum drying at 80°C to constant weight; the monomer solution is a mixture of citronellal, ethyl vanillin, deionized water and anhydrous ethanol in a mass ratio of 1.8:3.0:5:35; the mass ratio of the mixture to the monomer solution is 100:25.

[0038] The basic feed comprises the following components by weight:

[0039] 15 parts of fish meal, 20 parts of soybean meal, 15 parts of corn flour, 10 parts of wheat flour, 5 parts of rapeseed meal, 3 parts of fish oil, 1 part of monocalcium phosphate, 1 part of vitamin premix, 1 part of mineral premix and 1 part of yeast powder;

[0040] The vitamin premix includes vitamin A 7000IU / kg, vitamin B 1 4mg / kg, vitamin B 2 3mg / kg, vitamin D 600IU / kg, vitamin E 30IU / kg and vitamin K6mg / kg; the mineral premix includes ferrous sulfate 220mg / kg, calcium hydrogen phosphate 130mg / kg, copper sulfate 80mg / kg, zinc sulfate 200mg / kg and manganese sulfate 90mg / kg.

[0041] Example 2

[0042] The preparation method of the compound feed comprises the following steps:

[0043] Step 1, in a light-proof environment, mixing the dried konjac flour with the ethanol aqueous solution and performing ultrasonic extraction, centrifuging to remove solid particles, rotary evaporating to remove the solvent, and vacuum drying to obtain the konjac extract; wherein the ultrasonic extraction is to extract for 22 hours after ultrasonication at 25kHz for 18 minutes; the centrifugal separation is to centrifuge at a speed of 3100r / min for 18 minutes; the usage ratio of the konjac flour and the ethanol aqueous solution is 1g:9.5mL; the concentration of the ethanol aqueous solution is 60wt%;

[0044] Step 2, under an inert atmosphere, the basic feed, attapulgite and konjac extract are mixed and then ground, sieved, deionized water and glutathione are added, stirred and mixed, allowed to stand, filtered, and vacuum dried to obtain a mixture; wherein the inert atmosphere is a nitrogen atmosphere; the sieving is through a 200-mesh sieve; the stirring and mixing is stirring at a speed of 400 rpm for 38 minutes; the standing time is 2.5 hours; the vacuum drying is vacuum drying at a temperature of 75°C to constant weight; the mass ratio of the basic feed, attapulgite, konjac extract, deionized water and glutathione is 96:2.4:1.1:125:2.2;

[0045] Step three, under an inert atmosphere, spray the monomer solution onto the mixture, stir at a constant temperature, filter, wash, and vacuum dry to obtain a compound feed; wherein the inert atmosphere is a nitrogen atmosphere; the constant temperature stirring is stirring at 45°C for 4.5 hours; the washing is rinsing with anhydrous ethanol for 3 times; the vacuum drying is vacuum drying at 80°C to constant weight; the monomer solution is a mixture of citronellal, ethyl vanillin, deionized water and anhydrous ethanol in a mass ratio of 2:3.3:5.5:38; the mass ratio of the mixture to the monomer solution is 105:26.

[0046] The basic feed comprises the following components by weight:

[0047] 18 parts of fish meal, 22 parts of soybean meal, 18 parts of corn flour, 12 parts of wheat flour, 8 parts of rapeseed meal, 4 parts of fish oil, 1.5 parts of monocalcium phosphate, 1.5 parts of vitamin premix, 1.5 parts of mineral premix and 1.5 parts of yeast powder;

[0048] The vitamin premix includes vitamin A 7000IU / kg, vitamin B 1 4mg / kg, vitamin B 2 3mg / kg, vitamin D 600IU / kg, vitamin E 30IU / kg and vitamin K6mg / kg; the mineral premix includes ferrous sulfate 220mg / kg, calcium hydrogen phosphate 130mg / kg, copper sulfate 80mg / kg, zinc sulfate 200mg / kg and manganese sulfate 90mg / kg.

[0049] Example 3

[0050] The preparation method of the compound feed comprises the following steps:

[0051] Step 1, in a light-proof environment, mixing the dried konjac flour with the ethanol aqueous solution and performing ultrasonic extraction, centrifuging to remove solid particles, rotary evaporating to remove the solvent, and vacuum drying to obtain the konjac extract; wherein the ultrasonic extraction is to extract for 24 hours after ultrasonication at 30kHz for 20 minutes; the centrifugal separation is to centrifuge at a speed of 3200r / min for 20 minutes; the usage ratio of the konjac flour and the ethanol aqueous solution is 1g:10mL; the concentration of the ethanol aqueous solution is 60wt%;

[0052] Step 2, under an inert atmosphere, the basic feed, attapulgite and konjac extract are mixed and then ground, sieved, deionized water and glutathione are added, stirred and mixed, allowed to stand, filtered, and vacuum dried to obtain a mixture; wherein the inert atmosphere is a nitrogen atmosphere; the sieving is through a 200-mesh sieve; the stirring and mixing is stirring at a speed of 500 rpm for 45 minutes; the standing time is 3 hours; the vacuum drying is vacuum drying at a temperature of 80°C to constant weight; the mass ratio of the basic feed, attapulgite, konjac extract, deionized water and glutathione is 98:2.6:1.2:130:2.3;

[0053] Step three, under an inert atmosphere, spray the monomer solution onto the mixture, stir at a constant temperature, filter, wash, and vacuum dry to obtain a compound feed; wherein the inert atmosphere is a nitrogen atmosphere; the constant temperature stirring is stirring at 50°C for 5 hours; the washing is rinsing with anhydrous ethanol for 3 times; the vacuum drying is vacuum drying at 80°C to constant weight; the monomer solution is a mixture of citronellal, ethyl vanillin, deionized water and anhydrous ethanol in a mass ratio of 2.2:3.6:6:40; the mass ratio of the mixture to the monomer solution is 110:28.

[0054] The basic feed comprises the following components by weight:

[0055] 20 parts of fish meal, 25 parts of soybean meal, 20 parts of corn meal, 15 parts of wheat flour, 10 parts of rapeseed meal, 5 parts of fish oil, 2 parts of monocalcium phosphate, 2 parts of vitamin premix, 2 parts of mineral premix and 2 parts of yeast powder;

[0056] The vitamin premix includes vitamin A 7000IU / kg, vitamin B 1 4mg / kg, vitamin B 23mg / kg, vitamin D 600IU / kg, vitamin E 30IU / kg and vitamin K6mg / kg; the mineral premix includes ferrous sulfate 220mg / kg, calcium hydrogen phosphate 130mg / kg, copper sulfate 80mg / kg, zinc sulfate 200mg / kg and manganese sulfate 90mg / kg.

[0057] Comparative Example 1

[0058] Compared with Example 3, the difference in Comparative Example 1 is that konjac extract is used instead of attapulgite, and the other components, preparation steps and parameters are the same.

[0059] Comparative Example 2

[0060] Compared with Example 3, the difference in Comparative Example 2 is that attapulgite is used instead of konjac extract, and the other components, preparation steps and parameters are the same.

[0061] Comparative Example 3

[0062] Compared with Example 3, the difference in Comparative Example 3 is that citronellal is used instead of ethyl vanillin, and the other components, preparation steps and parameters are the same.

[0063] Comparative Example 4

[0064] Compared with Example 3, Comparative Example 4 is different in that ethyl vanillin is used instead of citronellal, and the other components, preparation steps and parameters are the same.

[0065] Comparative Example 5

[0066] Compared with Example 3, Comparative Example 5 is different in that citronellal and ethyl vanillin are not used, and the other components, preparation steps and parameters are the same.

[0067] Comparative Example 6

[0068] Compared with Example 3, Comparative Example 6 is different in that glutathione is not used, and the other components, preparation steps and parameters are the same.

[0069] The compound feeds prepared in Examples 1-3 and Comparative Examples 1-6 were subjected to the following performance tests, respectively. The test results are shown in Table 1.

[0070] Water resistance test:

[0071] 100 g of dried feed (Examples 1-3, Comparative Examples 1-6) were respectively placed in water (28°C, pH 7.5) and soaked for 24 hours, the feed suspended in the water or floating on the water surface was recovered, and the feed was weighed after drying to calculate the weight loss rate;

[0072] Table 1

[0073] Weight loss rate (%) Example 1 1.8 Example 2 2.0 Example 3 1.6 Comparative Example 1 14.2 Comparative Example 2 8.9 Comparative Example 3 7.2 Comparative Example 4 6.9 Comparative Example 5 8.3 Comparative Example 6 8.5

[0074] From the test results in Table 1, it can be seen that compared with Comparative Examples 1-6, the compound feeds of Examples 1-3 have higher water resistance and can remain intact and suspended in water.

[0075] Breeding experiment:

[0076] Grass carp was cultivated in an aquarium with a size of 150cm×70cm×100cm. Specifically, the parameters of the culture environment were set as follows: dissolved oxygen 6.5-8.5mg / L, water temperature maintained at 21-27°C, and pH range of 7.0-8.0. Before the experiment was started, the grass carp was fasted for 24 hours, and then 900 grass carps with a healthy physique and a body weight of about 50±1g were selected and randomly divided into 45 groups, 20 fish in each group, and a specific fish feed was used for every 5 groups. The feeds of the aforementioned embodiments 1-3 and control examples 1-6 were used to feed the grass carp at three time points of 8:30, 12:30, and 16:30 every day. The daily feeding amount was 3wt% of the grass carp body weight, ensuring that the feeding amount of each group was roughly the same, and the culture was continued for 8 weeks. The culture results are shown in Table 2.

[0077] Table 2

[0078] Initial body weight (g) Final weight (g) Example 1 51.12 122.69 Example 2 50.88 122.90 Example 3 50.60 123.12 Comparative Example 1 49.24 92.42 Comparative Example 2 50.40 96.85 Comparative Example 3 50.12 104.31 Comparative Example 4 50.21 103.24 Comparative Example 5 50.24 95.56 Comparative Example 6 49.65 95.14

[0079] It can be seen from Table 2 that the growth rate of grass carp cultured with the feeds of Comparative Examples 1-6 is significantly lower than the growth rate of grass carp cultured with the compound feeds of Examples 1-3, that is, the grass carp cultured with the compound feeds of Examples 1-3 grows faster than the grass carp cultured with the feeds of Comparative Examples 1-6.

[0080] By comparing and analyzing Examples 1-3 and Comparative Examples 1-6, combined with the experimental results of Table 1 and Table 2, it can be seen that the polysaccharide components in the konjac extract of the present invention have high viscosity and gel properties, which can enhance the cohesiveness of the feed and reduce the disintegration of the feed in water. It can also increase the physical stability of the feed by swelling by absorbing water and prevent the feed from dispersing too quickly in water; attapulgite has a porous structure and adsorption property, can be used as a physical binder for the feed, improve the mechanical strength of the feed, and its mineral components can stabilize the structure of the feed and reduce the breakage of the feed during processing and transportation. When the two are used in combination, the viscosity of the konjac extract and the adsorption of the attapulgite complement each other, so that the feed can be kept intact in water for a longer time, and the stability of the feed is significantly improved; attapulgite can also adsorb konjac extract, basic fertilizer and glutathione through hydrogen bonds and electrostatic effects to construct a continuous network through-structure with high strength and hydrophobicity. Glutathione contains thiol groups that can interact with mineral premixes to improve their utilization rate. The present invention utilizes the amino groups of konjac extract and glutathione to react with citronellal and ethyl vanillin to improve the stability of the compound feed and form a denser coating structure. The long carbon chain structure of citronellal and the rigid benzene ring structure of ethyl vanillin complement each other and synergistically realize the significant improvement of the hydrophobic stability of the compound feed and increase the utilization efficiency of the compound feed.

[0081] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any indirect modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A high-quality ecological fish farming method, characterized in that: The breeding method comprises the following steps: S1. Select a soil fish pond, lay artificial bedding at the bottom of the fish pond, introduce water and supply oxygen to the pond; S2. After adjusting the water temperature and dissolved oxygen in the soil fish pond, put in the fry; S3. Feed the fry with compound feed every day and change the water in the earthen fish pond regularly.

2. A high-quality ecological fish farming method according to claim 1, characterized in that: In step S1, the wall thickness of the earthen fish pond is ≥30 cm; the distance between the earthen fish pond and the water source is ≤50 m; and the depth of the earthen pond is 2-3 m.

3. A high-quality ecological fish farming method according to claim 1, characterized in that: In step S1, the artificial bedding materials are silt, kaolin and chopped straw, each with a thickness of 3 cm.

4. A high-quality ecological fish farming method according to claim 1, characterized in that: In step S2, the water temperature of the soil fish pond is 25-35°C; the dissolved oxygen content of the fish pond water is greater than 2 mg / L.

5. A high-quality ecological fish farming method according to claim 1, characterized in that: In step S2, the fry are soaked in salt water and then put into the field, with the amount of fry being 2800-3200 per mu.

6. A high-quality ecological fish farming method according to claim 1, characterized in that: In step S3, the replacement volume of the regular water change is ≤30%, and the regular water change frequency is 3-7 days / time; the number of times of feeding the compound feed is 2-3 times / day, and the amount of the compound feed is 3-10% of the total weight of the fish.

7. A high-quality ecological fish farming method according to claim 1, characterized in that: The preparation method of the compound feed comprises the following steps: Step 1, in a light-proof environment, mixing the dried konjac flour with an ethanol aqueous solution and performing ultrasonic extraction, centrifuging to remove solid particles, rotary evaporating to remove the solvent, and vacuum drying to obtain a konjac extract; Step 2: Under an inert atmosphere, the basic feed, attapulgite and konjac extract are mixed and then ground, sieved, deionized water and glutathione are added, stirred and mixed, allowed to stand, filtered, and vacuum dried to obtain a mixture; Step 3: Under an inert atmosphere, the monomer solution is sprayed onto the mixture, stirred at a constant temperature, filtered, washed, and vacuum dried to obtain a compound feed.

8. A high-quality ecological fish farming method according to claim 7, characterized in that: In step 1, the ultrasonic extraction is performed by ultrasonicating at 20-30kHz for 15-20 minutes and then extracting for 20-24 hours; the centrifugal separation is performed by centrifuging at a speed of 3000-3200 r / min for 15-20 minutes; the dosage ratio of the konjac flour to the ethanol aqueous solution is 1 g: 9-10 mL; the concentration of the ethanol aqueous solution is 60 wt%; In step 2, the inert atmosphere is nitrogen atmosphere; the sieving is through a 200 mesh sieve; the stirring and mixing is stirring at a speed of 300-500 rpm for 30-45 minutes; the standing time is 2-3 hours; the vacuum drying is vacuum drying at a temperature of 70-80° C. to constant weight; the mass ratio of the basic feed, attapulgite, konjac extract, deionized water and glutathione is 95-98:2.2-2.6:1.0-1.2:120-130:2.0-2.3; In step three, the inert atmosphere is a nitrogen atmosphere; the constant temperature stirring is stirring at a temperature of 40-50°C for 4-5h; the washing is rinsing with anhydrous ethanol for 3 times; the vacuum drying is vacuum drying at a temperature of 80°C to constant weight; the monomer solution is prepared by mixing citronellal, ethyl vanillin, deionized water and anhydrous ethanol in a mass ratio of 1.8-2.2:3.0-3.6:5-6:35-40; the mass ratio of the mixture to the monomer solution is 100-110:25-28.

9. A high-quality ecological fish farming method according to claim 7, characterized in that: The basic feed comprises the following components by weight: 15-20 parts of fish meal, 20-25 parts of soybean meal, 15-20 parts of corn flour, 10-15 parts of wheat flour, 5-10 parts of rapeseed meal, 3-5 parts of fish oil, 1-2 parts of monocalcium phosphate, 1-2 parts of vitamin premix, 1-2 parts of mineral premix and 1-2 parts of yeast powder.

10. A high-quality ecological fish farming method according to claim 9, characterized in that: The vitamin premix comprises 7000 IU / kg of vitamin A, 4 mg / kg of vitamin B1, 3 mg / kg of vitamin B2, 600 IU / kg of vitamin D, 30 IU / kg of vitamin E and 6 mg / kg of vitamin K; the mineral premix comprises 220 mg / kg of ferrous sulfate, 130 mg / kg of calcium hydrogen phosphate, 80 mg / kg of copper sulfate, 200 mg / kg of zinc sulfate and 90 mg / kg of manganese sulfate.