CN113057124A - Greenhouse industrial recirculating aquaculture method for reducing incidence rate of gill bleeding of fancy carps - Google Patents

Greenhouse industrial recirculating aquaculture method for reducing incidence rate of gill bleeding of fancy carps Download PDF

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Publication number
CN113057124A
CN113057124A CN202110320637.9A CN202110320637A CN113057124A CN 113057124 A CN113057124 A CN 113057124A CN 202110320637 A CN202110320637 A CN 202110320637A CN 113057124 A CN113057124 A CN 113057124A
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percent
water
tank
equal
culture
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杨志强
李潇轩
陈建清
李志辉
韩飞
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Freshwater Fisheries Research Institute of Jiangsu Province
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Freshwater Fisheries Research Institute of Jiangsu Province
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00—Culture of aquatic animals
    • A01K61/10—Culture of aquatic animals of fish
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00—Culture of aquatic animals
    • A01K61/10—Culture of aquatic animals of fish
    • A01K61/13—Prevention or treatment of fish diseases
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K10/00—Animal feeding-stuffs
    • A23K10/10—Animal feeding-stuffs obtained by microbiological or biochemical processes
    • A23K10/12—Animal feeding-stuffs obtained by microbiological or biochemical processes by fermentation of natural products, e.g. of vegetable material, animal waste material or biomass
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K10/00—Animal feeding-stuffs
    • A23K10/10—Animal feeding-stuffs obtained by microbiological or biochemical processes
    • A23K10/16—Addition of microorganisms or extracts thereof, e.g. single-cell proteins, to feeding-stuff compositions
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K10/00—Animal feeding-stuffs
    • A23K10/20—Animal feeding-stuffs from material of animal origin
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K10/00—Animal feeding-stuffs
    • A23K10/20—Animal feeding-stuffs from material of animal origin
    • A23K10/22—Animal feeding-stuffs from material of animal origin from fish
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K10/00—Animal feeding-stuffs
    • A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/10—Organic substances
    • A23K20/105—Aliphatic or alicyclic compounds
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/10—Organic substances
    • A23K20/142—Amino acids; Derivatives thereof
    • A23K20/147—Polymeric derivatives, e.g. peptides or proteins
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/10—Organic substances
    • A23K20/158—Fatty acids; Fats; Products containing oils or fats
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/10—Organic substances
    • A23K20/163—Sugars; Polysaccharides
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/10—Organic substances
    • A23K20/174—Vitamins
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K50/00—Feeding-stuffs specially adapted for particular animals
    • A23K50/80—Feeding-stuffs specially adapted for particular animals for aquatic animals, e.g. fish, crustaceans or molluscs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81—Aquaculture, e.g. of fish
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81—Aquaculture, e.g. of fish
    • Y02A40/818—Alternative feeds for fish, e.g. in aquacultures

Abstract

A greenhouse industrial circulating water culture method for reducing incidence rate of gill bleeding of fancy carps belongs to the technical field of culture, and is characterized by comprising the following steps: an industrial recirculating aquaculture greenhouse; stocking fancy carp fries with the specification of more than or equal to 8.5 g/tail in 6 months; the seedling density is 100 tails/m3(ii) a Feeding 5% of feed for the fancy carp every day; the bearing capacity of the culture pond is less than or equal to 50Kg/m3Timely separating the pools; feeding for at least three months. The invention provides a brand-new breeding mode for the breeding characteristics of the fancy carps and the pathogenic characteristics of gill hemorrhage of the fancy carps, the breeding cycle is short, the disease peak period of twice gill hemorrhage can be safely avoided, and the survival rate reaches 98%.

Description

Greenhouse industrial recirculating aquaculture method for reducing incidence rate of gill bleeding of fancy carps
Technical Field
The invention relates to the technical field of cultivation, in particular to a greenhouse industrial circulating water cultivation mode for reducing incidence rate of gill bleeding of fancy carps.
Background
Fancy carp belonging to the order Cyprinus carpiod, Cyprinaceae and Cyprinus carpiod is a high-grade ornamental fish in the world, and is called as "underwater precious stone" or "swimming artwork". In recent years, the market of Chinese koi has developed rapidly, has a certain production capacity, and has attracted close attention from international colleagues (especially Japanese colleagues). Fancy carps are favored by a large number of culturists, and are listed as the preferred objects for adjusting aquaculture structures in many areas. The fancy carp industry is widely valued in the consumption and investment markets and becomes the leading product of leisure fishery and sightseeing agriculture in the future. The ornamental fish industry of Jiangsu has large scale, the annual output value is over five hundred million yuan, the fancy carp accounts for the largest proportion in the ornamental fish industry, and the regional culture has various characteristics.
Due to the fact that regional land areas are small in many places in the whole country, a greenhouse factory circulating water culture mode becomes a trend of fancy carp culture development. Although the brocade carp breeding industry in China has a certain scale, the brocade carp breeding modes in most of regional ranges converge and are intensive breeding and storage, the defects are that the breeding density is high, the water environment changes a lot, the disease occurrence is serious day by day, the brocade carp gill hemorrhage sometimes occurs in recent years and has a trend of becoming more severe, the enthusiasm of part of breeding enterprises (households) is seriously contused, and the improvement of the breeding yield and the scale is restricted.
Researches have proved that the gill bleeding pathogen of koi is cyprinid herpesvirus II (CYHV-II), which is a virus with high lethality to koi, and the virus is easy to burst at the temperature of 15-25 ℃ and in the months of 4-5 and 10-11 each year. Farmers breed the fish according to the mode of young fry release and young fish sale, are difficult to avoid the gill bleeding high-incidence period, have low breeding success rate and poor benefit.
Disclosure of Invention
The invention provides a greenhouse industrial circulating water culture method for reducing incidence rate of gill bleeding of fancy carps, aiming at solving the problem that the gill bleeding of the existing fancy carps can die or affect the growth rate in the culture process.
The technical scheme of the invention is as follows:
a greenhouse industrial circulating water culture method for reducing incidence rate of gill bleeding of fancy carps is characterized by comprising the following steps:
firstly, completing the environmental control of the greenhouse industrial circulating water culture pond: controlling the pH value of the pond water to be 7.6-8.0; the dissolved oxygen is more than or equal to 5 m/L; the water temperature is 26-28 ℃; the nitrite content is less than or equal to 0.2 mg/L; the content of ammonia nitrogen is less than or equal to 0.1 mg/L;
secondly, seedling releasing: in 6 months of each year, brocade carp fries with the specification of more than or equal to 8.5 g/tail are put in; the seedling density is controlled to be 90-110 tail/m3；
Thirdly, separating the pools: the bearing capacity of the culture pond is controlled to be less than or equal to 50Kg/m3When the bearing capacity is more than 10%, the seeds are cultured in different ponds;
fourthly, the carp feed is fed with balanced and comprehensive nutrition, is favored by the fancy carp, is bright and bright in color after being fed for a long time, can improve the growth speed of the fancy carp, can improve the immunity of the fancy carp, and is a mixed feed for preventing the gill hemorrhage and the morbidity of the fancy carp, the feed is fed for 3 times (8: 00, 13:00 and 17: 00) every day, the daily feeding amount of the feed is 1/3, and the daily feeding amount accounts for about 5% of the mass of the fish in the pool. And measuring the fish body mass of the fish in the pool for 1 time every 10 days, and correspondingly adjusting the feeding amount. Feeding for at least three months.
The mixed feed comprises the following components in percentage by mass: the feed consists of 19 percent of dried fish, 19 percent of dried shrimps, 6 percent of carotene, 10 percent of spirulina, 10 percent of malt meal, 6 percent of corn flour, 6 percent of soybean meal, 12 percent of flour, 3.5 percent of earthworm powder, 2 percent of eggs, 4 percent of vegetable oil, 2 percent of corn protein peptide, 0.1 percent of astragalus polysaccharide, 0.1 percent of fishy peptide, 0.1 percent of vitamin and 0.2 percent of fermented powder, wherein the astragalus polysaccharide has the effects of improving immunity and preventing gill bleeding; weighing the components in percentage, stirring uniformly, puffing, crushing, granulating and feeding.
The feeding time is respectively 8:00, 13:00 and 17: 00.
The seedling laying density is 100 tails/m3。
The greenhouse industrial circulating water culture pond consists of a culture area and a filtering area, the filtering area consists of a sedimentation tank, a brush tank, a biological purification tank, a bacteria house tank and a clean water tank, a heating and temperature control device is arranged in the culture area, the temperature of water is controlled to be between 26 and 28 ℃, water in the culture area is pumped into the sedimentation tank under the action of a water pump to precipitate impurities in the water and then naturally flows into the brush tank, photosensitive substances on the brush are utilized to adsorb organic matters in the water, decomposing ammonia nitrogen in water, allowing the water adsorbed and decomposed by the hairbrush pool to enter a biological purification pool for biological purification, allowing the water subjected to biological purification to flow into a bacteria room pool for further purification to obtain purified water with the water quality pH value of 7.6-8.0, dissolved oxygen content of more than or equal to 5m/L, nitrite content of less than or equal to 0.2mg/L and ammonia nitrogen content of less than or equal to 0.1mg/L, and allowing the purified water to enter a culture pool again for circulation.
The invention has the beneficial effects that:
the invention provides a breeding mode for the breeding characteristics of the fancy carp and the pathogenic characteristics of gill hemorrhage of the fancy carp, the breeding cycle is short, the disease peak period of twice gill hemorrhage can be safely avoided, and the survival rate reaches 98%, as shown in figure 3.
The invention avoids the occurrence of high incidence rate of the koi gill hemorrhage through the water temperature control and the stocking time control, improves the survival rate, and simultaneously realizes the requirements of disease prevention and rapid growth through the feeding of special feed, as shown in figure 2.
Drawings
FIG. 1 is a schematic diagram of a Koi greenhouse industrial recirculating aquaculture mode of the invention;
FIG. 2 is a comparison between the cultivation mode of Koi in greenhouse industrial circulating water and the traditional Koi cultivation mode;
FIG. 3 shows the comparison of the survival rate of the Koi greenhouse industrial recirculating aquaculture mode of the invention and the traditional Koi aquaculture mode.
Detailed Description
The following specific examples are provided to further illustrate the present invention so that those skilled in the art may better understand the invention and practice it, but the examples are not intended to limit the invention. Other various modifications, substitutions and alterations of the above-described structures of the present invention will occur to those skilled in the art without departing from the basic technical spirit of the invention as described herein.
As shown in fig. 1.
A greenhouse industrial recirculating aquaculture method for reducing incidence rate of gill bleeding of fancy carps comprises the following steps:
controlling the environment of the greenhouse industrial circulating water culture pond: controlling the pH value of the pond water to be 7.6-8.0; the dissolved oxygen is more than or equal to 5 m/L; the water temperature is 26-28 ℃; the nitrite content is less than or equal to 0.2 mg/L; the content of ammonia nitrogen is less than or equal to 0.1 mg/L. The structure of the greenhouse factory circulating water culture pond is shown in figure 1, and the greenhouse factory circulating water culture pond consists of a culture area and a filtering area, wherein the filtering area consists of a sedimentation tank, a brush tank, a biological purification tank, a bacteria room tank and a water purification tank, a heating and temperature control device is arranged in the culture area, the temperature of water is controlled to be between 26 and 28 ℃, water in the culture area is pumped into the sedimentation tank under the action of a water pump to precipitate impurities in the water and naturally flows into the brush tank, organic matters in the water are adsorbed by photosensitive substances on the brush to decompose ammonia nitrogen in the water, the water adsorbed and decomposed by the brush tank enters the biological purification tank to be biologically purified, the water after biological purification flows into the bacteria room tank to be further purified, and the purified water with the pH value of 7.6 to 8.0, the dissolved oxygen content of more than or equal to 5m/L, the nitrite content of less than or equal to 0.2mg/L and the ammonia nitrogen content of less than or equal, and the purified water enters the culture pond again for circulation. The function purpose of each treatment pond in the greenhouse industrial circulating water culture pond is as follows: a sedimentation tank: large particulate matter (residual bait, feces) is precipitated; a brush pool: entrapping large particulate matter (residual baits, feces) that does not precipitate; a biological purification tank: degrading ammonia nitrogen, nitrite and organic matters in the water body, and reducing the ammonia nitrogen content, nitrite content and COD of the water body; bacteria room pond: carrying out deep purification treatment to further reduce the ammonia nitrogen content, nitrite content and COD of the water body; a water purifying tank: sterilizing with ultraviolet lamp. The system is characterized in that: 1. the circulating water flow is S-shaped, namely, each filtering tank enters water from the lower part and then exits water from the upper part, so that the purifying efficiency of the circulating water can be improved. 2. The pressure dividing pipeline and the heightening weirs arranged at the bottoms of the filter tanks can enable water at the bottom of each filter tank to be in a static state, and impurity precipitation is facilitated. 3. The wall of the whole filtering system is provided with a reflector coated with a photocatalyst coating, and the photocatalyst can degrade harmful substances such as ammonia nitrogen, nitrite and the like.
Controlling the breeding density: seedling releasing: in 6 months, putting brocade carp fries with the specification of more than or equal to 8.5 g/tail; the seedling density is 100 tails/m3(ii) a Separating the tanks: the bearing capacity of the culture pond is less than or equal to 50Kg/m3And (4) separating the pools at the right time, namely separating the pools when the bearing capacity exceeds 10 percent.
The feed formula and the preparation method are as follows: 19% of dried fish, 19% of dried shrimp, 6% of carotene, 10% of spirulina, 10% of malt flour, 6% of corn flour, 6% of soybean flour, 12% of flour, 3.5% of earthworm powder, 2% of eggs, 4% of vegetable oil, 2% of corn protein peptide, 0.1% of astragalus polysaccharide, 0.1% of fishy peptide, 0.1% of vitamin and 0.2% of fermentation powder, weighing the components in percentage, stirring uniformly, puffing, crushing and granulating to obtain the feed. The fancy carp feed of the formula has balanced and comprehensive nutrition and is favored by fancy carps. The color of the fancy carp fed for a long time is bright and bright, various additives can improve the growth speed of the fancy carp, simultaneously can improve the immunity of the fancy carp and prevent the incidence of the gill hemorrhage of the fancy carp.
Feeding: feeding the fancy carp with the compound feed for 3 times (8: 00, 13:00 and 17: 00) every day, wherein the daily feeding amount of the compound feed is 1/3, and the daily feeding amount accounts for about 5% of the mass of the fish body in the pool. And measuring the fish body mass of the fish in the pool for 1 time every 10 days, and correspondingly adjusting the feeding amount. Feeding for at least three months.
In the invention, an outdoor pond is additionally arranged, and the fancy carp is cultured by using the traditional culture method for comparison.
Outdoor pond culture environment requirements:
releasing seedlings in 6 months, wherein the stocking specification is more than or equal to 8.5 g/tail, and the stocking density is 3000 tails/667 m2And culturing for at least three months.
Controlling the outdoor pond culture environment: controlling the pH value of the pond water to be 7.5-8.5; the dissolved oxygen is more than or equal to 3 m/L; the water temperature is 18-32 ℃; the nitrite content is less than or equal to 0.5 mg/L; the content of ammonia nitrogen is less than or equal to 0.2 mg/L.
The outdoor pond feeding requirement is as follows:
the feeding rate of the outdoor pond is controlled to be 1.5-2.0% in the low-temperature period of 3-4 months, the feeding rate is controlled to be 3.0-4.0% in the water temperature rising period of 5-6 months, the feeding rate is controlled to be 5.0% in the rapid growth period of 7-8 months, and the daily feeding rate is correspondingly adjusted according to the change of weather.
Comparison of growth of the koi:
by comparing the two culture modes of the fancy carp, the fancy carp grows faster in the greenhouse industrial circulating water culture mode than the traditional fancy carp culture mode, as shown in figure 2.
The breeding mode of the invention avoids the gill bleeding and outbreak peak periods of the fancy carps of 4 months, 5 months, 10 months and 11 months, the fancy carps which are most popular in the market and are about 500 g/tail are bred in 10 months, the survival rate of the fancy carps is up to 98 percent, and the breeding mode of the invention is shown in figure 1. The traditional breeding mode is affected by gill bleeding diseases, the morbidity is high, and the survival rate is only 75%, as shown in figure 3.
The present invention is not concerned with parts which are the same as or can be implemented using prior art techniques.

Claims (5)

1. A greenhouse industrial circulating water culture method for reducing incidence rate of gill bleeding of fancy carps is characterized by comprising the following steps:
firstly, completing the environmental control of the greenhouse industrial circulating water culture pond: controlling the pH value of the pond water to be 7.6-8.0; the dissolved oxygen is more than or equal to 5 m/L; the water temperature is 26-28 ℃; the nitrite content is less than or equal to 0.2 mg/L; the content of ammonia nitrogen is less than or equal to 0.1 mg/L;
secondly, seedling releasing: in 6 months of each year, brocade carp fries with the specification of more than or equal to 8.5 g/tail are put in; controlling the seedling setting density to be 90-110 tail/m3；
Thirdly, separating the pools: the bearing capacity of the culture pond is controlled to be less than or equal to 50Kg/m3When the bearing capacity is more than 10%, the seeds are cultured in different ponds;
fourthly, feeding the cyprinus carpio with balanced and comprehensive nutrition, wherein the cyprinus carpio is favored to eat, the cyprinus carpio is fed for a long time, the color of the cyprinus carpio is bright and bright, the growth speed of the cyprinus carpio can be improved, the immunity of the cyprinus carpio can be improved, and the mixed feed for preventing the gill hemorrhage and the morbidity of the cyprinus carpio can be fed for 3 times (8: 00, 13:00 and 17: 00) every day, wherein the daily feeding amount of the cyprinus carpio is 1/3, and the daily feeding amount accounts for about 5%; measuring the quality of the fish bodies in the pool at intervals of 10d by spot check, and correspondingly adjusting the feeding amount; feeding for at least three months.
2. The method as claimed in claim 1, wherein the mixed feed comprises, by mass: the feed consists of 19 percent of dried fish, 19 percent of dried shrimps, 6 percent of carotene, 10 percent of spirulina, 10 percent of malt meal, 6 percent of corn flour, 6 percent of soybean meal, 12 percent of flour, 3.5 percent of earthworm powder, 2 percent of eggs, 4 percent of vegetable oil, 2 percent of corn protein peptide, 0.1 percent of astragalus polysaccharide, 0.1 percent of fishy peptide, 0.1 percent of vitamin and 0.2 percent of fermented powder, wherein the astragalus polysaccharide has the effects of improving immunity and preventing gill bleeding; weighing the components in percentage, stirring uniformly, puffing, crushing, granulating and feeding.
3. The method of claim 1, wherein the feeding times are 8:00, 13:00 and 17:00, respectively.
4. The method of claim 1, wherein said seedling density is 100 tails/m3。
5. The method as claimed in claim 1, wherein the greenhouse industrial recirculating aquaculture pond comprises a culture area and a filtration area, the filtration area comprises a sedimentation tank, a brush tank, a biological purification tank, a bacteria room tank and a clean water tank, the culture area is provided with a heating and temperature control device, the temperature of water is controlled to be between 26 and 28 ℃, water in the culture area is pumped into the sedimentation tank under the action of a water pump to precipitate impurities in the water and then naturally flows into the brush tank, photosensitive substances on the brush are used for adsorbing organic matters in the water to decompose ammonia nitrogen in the water, the water adsorbed and decomposed by the brush tank enters the biological purification tank for biological purification, the water after biological purification flows into the bacteria room tank for further purification, the pH value of the water is 7.6 to 8.0, the dissolved oxygen content is not less than 5m/L, the nitrite content is not more than 0.2mg/L, purified water with the ammonia nitrogen content less than or equal to 0.1mg/L enters the culture pond again for circulation.
CN202110320637.9A 2021-03-25 2021-03-25 Greenhouse industrial recirculating aquaculture method for reducing incidence rate of gill bleeding of fancy carps Pending CN113057124A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1771798A (en) * 2004-11-10 2006-05-17 长春市水产研究院 Purifying system for complefely closed sea water and fresh water fish cultivation
CN102351367A (en) * 2011-06-30 2012-02-15 河北省水产研究所 Method for regulating and controlling water quality of fully enclosed circulation sea-water industrial mariculture
CN103598424A (en) * 2013-10-10 2014-02-26 李民庆 Fancy carp feed formula
CN106746210A (en) * 2016-12-19 2017-05-31 吴智峰 A kind of anti-blocking sand filtration cultivation water circulation system
CN112167123A (en) * 2020-09-27 2021-01-05 通威股份有限公司 Carassius auratus gibelio breeding method for reducing incidence rate of gill bleeding of carassius auratus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1771798A (en) * 2004-11-10 2006-05-17 长春市水产研究院 Purifying system for complefely closed sea water and fresh water fish cultivation
CN102351367A (en) * 2011-06-30 2012-02-15 河北省水产研究所 Method for regulating and controlling water quality of fully enclosed circulation sea-water industrial mariculture
CN103598424A (en) * 2013-10-10 2014-02-26 李民庆 Fancy carp feed formula
CN106746210A (en) * 2016-12-19 2017-05-31 吴智峰 A kind of anti-blocking sand filtration cultivation water circulation system
CN112167123A (en) * 2020-09-27 2021-01-05 通威股份有限公司 Carassius auratus gibelio breeding method for reducing incidence rate of gill bleeding of carassius auratus

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