CN112535129A - Breeding method of young ball-headed wedge mussels - Google Patents
Breeding method of young ball-headed wedge mussels Download PDFInfo
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- A—HUMAN NECESSITIES
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- 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
- A23K10/18—Addition of microorganisms or extracts thereof, e.g. single-cell proteins, to feeding-stuff compositions of live microorganisms
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- A23K10/20—Animal feeding-stuffs from material of animal origin
- A23K10/22—Animal feeding-stuffs from material of animal origin from fish
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
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- A—HUMAN NECESSITIES
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- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
- A23K10/37—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms from waste material
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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- A23K20/00—Accessory food factors for animal feeding-stuffs
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/142—Amino acids; Derivatives thereof
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/174—Vitamins
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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- A23K20/00—Accessory food factors for animal feeding-stuffs
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- A23K20/189—Enzymes
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/20—Inorganic substances, e.g. oligoelements
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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- 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
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- 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
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- 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
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- 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
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- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/87—Re-use of by-products of food processing for fodder production
Abstract
The invention discloses a breeding method of young hyriopsis cumingii, which comprises the following steps: the method further improves the artificial breeding technology of the seeds, increases the technical links of parent mussel seed selection breeding and host fish nutrition strengthening, improves the technology of adding nutrition mud and pond operation, combines the biological characteristics of the round-nose wedge mussel, digitalizes all technical parameters in the breeding process of the round-nose wedge mussel, comprises the selection of the parent mussel, the temporary breeding and the nutrition strengthening of the host fish, the control of the density of the parasitic seedlings and the pond operation technology and the like, and ensures that the stable emergence rate of the round-nose wedge mussel reaches 2-3 ten thousand per meter/m2Meanwhile, the young mussels bred are excellent in physique and regular in specification.
Description
Technical Field
The invention relates to a breeding method of young hyriopsis cumingii, belonging to the field of breeding methods of freshwater mussels.
Background
In recent years, the habitat of the mussels is intervened and damaged to different degrees due to the increased pollution degree of inland water areas such as lakes, rivers and the like and the overfishing of the freshwater mussels by human beings, and finally, the mussel resource and biodiversity is reduced sharply. The mussel resources of inland water areas, particularly inland lake areas and rivers, in China show a tendency of declining day by day, and some rare mussels are even endangered to be extinct, so that the biodiversity protection and management of freshwater mussels in China are urgently needed to be enhanced. A set of stable and efficient breeding method for young hyriopsis cumingii can provide powerful technical support for artificial breeding protection and development of hyriopsis cumingii in China.
Disclosure of Invention
The invention aims to provide a method for stably and efficiently breeding young hyriopsis cumingii.
The technical problem to be solved by the invention can be realized by the following technical scheme:
a breeding method of young hyriopsis cumingii comprises the following steps:
(1) parent mussel cultivation;
(2) seedling picking;
(3) in the parasitic stage, cultivating mussel seedlings;
(4) culturing the mussel seedlings after seedling shedding;
(5) and (5) cultivating the small mussels.
In the present invention; the parent mussel culturing step comprises the following steps of selecting high-quality parent mussels: the parent mussel is 2-5 years old, the weight of the parent mussel is 150-200 g, and the shell length of the parent mussel is 8-12 cm; the preferred parent mussel age is 4-5 years old; the appearance of the parent mussel is thick and solid, the mussel shell is bright and bright, and is parasite-free, healthy and strong in physique and free of any diseases; after being frightened, the two shells are closed quickly, and water is sprayed forcefully; the preferred time for selecting the parent mussel is late autumn and the parent mussel is cultivated in a special pond, so that the mixing of inferior seed sources is avoided;
the step of collecting the fry comprises the following steps of host fish nutrition strengthening cultivation: in the whole intensified culture process, special granular materials are selected. The granular feed uses fish meal, rapeseed cakes, bran and the like as main raw materials, and is prepared into finished fish feed (the grain size is 2.5-3.5 mm) with different grain sizes by a small hard-particle feed machine. The animal protein content in the granule is about 25%. Feeding the fish feed, wherein the daily bait feeding amount is 1-3% of the weight of the fish, the daily bait feeding times are 3 times, the feeding is carried out at 7 am, 13 pm and 18 evening, and the feeding amount of each time accounts for 1/3 of the daily feeding amount. In actual operation, the bait feeding device is flexibly adjusted according to weather, water temperature and food intake conditions, and generally, the bait feeding amount is controlled to be about 1 hour for complete feeding every time. Feeding is stopped two days before the seedlings are sent.
In the step of collecting the fry, the density of the larval hamulus attached to the host fish is 3-4 ten thousand per kg of the host fish; the host fish is bream; the bream is an individual with strong physique, lively swimming, bright color and no injury or disease, and the body weight is preferably 50 +/-10 g.
In the step of cultivating the mussel seedling in the parasitic stage, the stocking density of the host fish is 1m2Breeding pond1.5-2 kg of host fish is preferably cultured. The flow rate of the pool water is controlled to be 1-1.5T/h best.
In the clam seedling cultivation step, the stocking density of the clam seedlings is preferably 3-4 ten thousand in the breeding pond of 1m 2.
In the step of cultivating the small mussels, the stocking density of the small mussels is 1m2Preferably 200-300 clam seedlings are released in the clam breeding pond; 150-200 clam seedlings are released in each net cage, and 65 ten thousand clam seedlings are released in each hectare.
In the clam seedling cultivation step, a layer of fine sand is paved at the bottom of a pool, then nutrient mud is added, the nutrient mud is added every 2 days, the adding amount is slightly lower than the shell height of the young clams, the problem that the young clams are buried in the nutrient mud to suffocate and die due to excessive mud and dead angles of mud accumulation is mainly avoided, and the nutrient mud is strictly and quantitatively added. The pond is operated at least for 2 times every day, clam seedlings are evacuated, and when the pond is operated, the clam seedlings are evacuated on the side of the pond by the small bamboo rakes, so that the clam seedlings are prevented from being stepped on the pond to be operated as far as possible.
In the clam seedling cultivation step, the flow rate of pond water is controlled to be 1-2T/h, and is higher than that in the daytime at night.
In the step of cultivating the small mussels, the flow rate of pool water is controlled to be 2-3T/h in the early stage and the small stage.
The special granular material for the nutrient enrichment culture of the host fish comprises the following components in parts by weight: 25-30 parts of fish meal, 10-15 parts of rapeseed cakes, 8-10 parts of barley malt, 10-15 parts of bran, 2 parts of gypsum powder, 1 part of anhydrous betaine, 0.15-0.2 part of vitamin E, 0.1-0.2 part of bacillus preparation, 0.05-0.1 part of vitamin C, 0.2-0.4 part of gamma-aminobutyric acid and 0.2-0.3 part of special enzyme for wheat are mixed, and then the mixture is prepared into a fish forming material with the particle size of 2.5-3.5 millimeters by a small hard particle feed machine, 4-6 parts of bitter herbs, 5-7 parts of hydrilla verticillata and 3-4 parts of water vitamin plant mixed stirring material with the particle size of 2.5-3.5 millimeters are mixed and used as auxiliary materials, and the daily dosage is 2-5 Kg/m2。
The invention further perfects the artificial breeding technology of the seeds, increases the technical links of parent mussel seed selection and cultivation and host fish nutrition reinforcement, improves the technologies of adding nutrition mud and operating pond, combines the biological characteristics of the round-head wedge mussels, and digitalizes the round-head wedge musselsVarious technical parameters in the breeding process of young mussels comprise selection of parent mussels, temporary culture and nutrition enhancement of host fishes, control of seedling density, pond operation technology and the like, so that the stable emergence rate of young mussels of the round-head wedge mussels reaches 2-3 ten thousand per meter2Meanwhile, the young mussels bred are excellent in physique and regular in specification.
The invention will be explained in more detail below with reference to the drawings and examples.
Drawings
Fig. 1 is an acquisition diagram of the acquisition specification of parent mussels.
FIG. 2 is a collection of mature Botryoid larvae.
FIG. 3 is a collection of exfoliated juvenile mussels.
FIG. 4 is a collection diagram of young mussels growing for 5 months.
Detailed Description
The terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like in the specification indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Embodiment 1, a method for breeding young hyriopsis cumingii, which is characterized in that: the method comprises the following steps: parent mussel cultivation, seedling collection, parasitic stage mussel seedling cultivation, after-seedling-removal mussel seedling cultivation and small mussel cultivation; the method comprises the following specific steps:
first, parent mussel cultivation
(1) Collecting parents from a natural water body in 4-6 months every year, and respectively putting the collected round-head mussels in different culture ponds according to the sizes of individuals for running water culture;
(2) lightly opening shells by using a mouth gag for inspection and screening out parent clams with plump baby-bearing sacs, selecting the parent clams at the same maturity as much as possible as parent clams, temporarily culturing the parent clams in a large basin, adding aerated tap water to just fill the parent clams, simultaneously using an oxygenation device to adjust the dissolved oxygen amount of pool water to be more than 5mg/L, and simultaneously feeding a proper amount of green algae every day for culturing the parent clams; the parents are shown in figure 1 hereinafter.
II, seedling picking step
(1) Observing whether the parents temporarily cultured in the big basins discharge leptomens larvae every day, timely transferring the parents to another big basin for drying for 2 hours when the parents discharge leptomens larvae, and then adding aerated tap water at about 25 ℃ to stimulate the parents to discharge leptomens larvae; observing the maturity of the discharged larva by using a microscope, wherein if all or most of leptocytarsa larvae rupture membranes in one visual field, and the two shells can slightly fan and the byssus is adhered, the leptocytarsa larvae are mostly mature; mature leptosphaeria larvae are shown in fig. 2 hereinafter.
(2) Filtering and washing the leptosphaeria larvae with aerated tap water through a 200-mesh filter screen, washing the leptosphaeria larvae into a large basin, and adding a proper amount of aerated tap water for dilution, wherein the concentration of a leptosphaeria larvae diluent is about 2000 per mL;
(3) the best host fish of the hyriopsis cumingii is bream. The host fish is preferably bream which is 50 +/-10 g in weight, thick and solid in body surface, bright and bright in clam shell, free of parasites, strong in physique and free of any diseases. The host fish mainly comes from a culture pond of a company breeding base, the bream is temporarily cultured by generally adopting a pond or a net cage, the size of the net cage is 4m multiplied by 1m in length, width and height, the diameter of a mesh is about 1-2 cm, and a layer of plastic film is laid at the bottom of the net cage to prevent the friction damage of the host fish body and improve the survival rate. 15-20 kg of host fish are stocked in each box, and about 30kg of host fish is needed for breeding 100 ten thousand young mussels;
thirdly, cultivating the mussel seedling in the parasitic stage
In the whole intensified culture process, special granular materials are selected. The granular feed uses fish meal, rapeseed cakes, bran and the like as main raw materials, and is prepared into finished fish feed (the grain size is 2.5-3.5 mm) with different grain sizes by a small hard-particle feed machine. The animal protein content in the granule is about 25%. Feeding the fish feed, wherein the daily bait feeding amount is 1-3% of the weight of the fish, the daily bait feeding times are 3 times, the feeding is carried out at 7 am, 13 pm and 18 evening, and the feeding amount of each time accounts for 1/3 of the daily feeding amount. In actual operation, the bait feeding device is flexibly adjusted according to weather, water temperature and food intake conditions, and generally, the bait feeding amount is controlled to be about 1 hour for complete feeding every time. Feeding is stopped two days before the seedlings are sent.
Fourthly, seedling picking step
The seedling picking method is generally adopted in still water seedling picking. Picking the fry in still water, namely putting the host fish into a diluent containing leptocylindrus clarkii larvae, wherein the fry picking time is related to the temperature, the water temperature is slightly longer when the water temperature is lower, and the water temperature is slightly shorter when the water temperature is higher; specifically please see table one when picking seedlings;
relationship between water temperature and seedling collection time
| Water temperature (. degree.C.) | Time to harvest seedling (min) |
| 20 | 15 |
| 22 | 15 |
| 24 | 8 |
| 26 | 5 |
The seedling picking time is controlled to be 5-15min, and the density is preferably 2-3 ten thousand host fish/kg host fish per mu. During the seedling picking period, a small oxygenation pump is used for increasing oxygen in the seedling producing basin. And then the gill plate of the host fish is checked by naked eyes, if the gill plate is full of small white spots, the leptocylindrus ova is parasitic on the host fish, and the host fish with picked fries is put into a flowing water fry raising pond to be raised in time. In the parasitic stage, the breeding of the mussel seedlings is mainly characterized by breeding the host fish. Fifthly, collecting and cultivating the mussel seedlings after seedling shedding in the cultivating step:
closely related to the environment such as substrate, water flow, water quality, water temperature, etc.
(1) Construction of cultivation pond
Leveling the ground, namely stacking red bricks into a pool shape, paving a plastic film on the pool shape to form a culture pool, and preferably selecting soil containing three kinds of soil to form the culture pool.
(2) Feeding of host fish and collection of young mussels
The host fish after seedling collection should be immediately transferred to a small soil pond or a breeding pond, about 1Kg of the host fish is put into each square, and the time when the leptocystis larvae are parasitized on the fish body to be transformed into young mussels is determined according to the air temperature, and the water temperature is measured once every 7 am, 12 pm and 5 pm every day, and the average value is calculated. When the accumulated water temperature reaches 200 ℃, seedlings are about to fall off. Generally, it is required to be 7-16 d. The parasitic time is short when the water temperature is high, and the parasitic time is long when the water temperature is low, generally, the water temperature is 22-28 ℃, and the parasitic time is 8-12 days; the water temperature is 28-30 ℃, and the parasitic time is 5-7 days; the water temperature is 30-33 ℃, and the parasitic time is 3-6 days; timely mastering the shedding time of the young mussels, and fishing out the host fish in time; the young mussels are shown in figure 3 hereinafter.
Cultivation of six, little mussel
After the young mussels are taxed, adopting a cement pond and running water for cultivation when the mussel shells grow to 2.0-4.0 cm; the mussels are shown in fig. 4 hereinafter.
(1) Flow water culture: the flow rate is generally controlled to be 2-3T/h, the flow rate is kept small at the early stage and large at the later stage, the water quality is kept fresh, the dissolved oxygen is sufficient, and the nutrition is rich;
water body disinfection: the quick lime is adopted for sterilization, the concentration of the quick lime is 300mg/L, when the quick lime is used, a proper amount of water is added into the quick lime for rapid melting, the quick lime is uniformly splashed in the whole pool, and the pesticide effect time is 5-7 d;
adding nutrient mud: the nutrient mud is added every 2 days, the adding amount is slightly lower than the shell height of the young mussels, the situation that the young mussels are buried in the nutrient mud to be suffocated due to excessive mud and dead angles of mud accumulation is mainly avoided, and the nutrient mud is strictly and quantitatively added, so that the young mussels have a good development and growth environment;
stocking density: preferably 200-300 freshwater mussel seedlings are bred in a breeding mode at 1m 2.
(5) Operating a pool for treatment: in order to avoid that the clam seedlings are stifled in a too concentrated manner, sludge at the bottom of the pond needs to be timely removed, the pond is operated frequently, and the clam seedlings are evacuated at least 2 times a day; when the pond is operated, the clam seedlings are gently evacuated by the small bamboo rakes on the sides of the pond, and the bottom film of the pond is prevented from being scraped as much as possible.
The special granular material for the nutrient enrichment culture of the host fish comprises the following components in parts by weight: 25-30 parts of fish meal, 10-15 parts of rapeseed cakes, 8-10 parts of barley malt, 10-15 parts of bran, 2 parts of gypsum powder, 1 part of anhydrous betaine, 0.15-0.2 part of vitamin E, 0.1-0.2 part of bacillus preparation, 0.05-0.1 part of vitamin C, 0.2-0.4 part of gamma-aminobutyric acid and 0.2-0.3 part of special enzyme for wheat are mixed, and then the mixture is prepared into a fish forming material with the particle size of 2.5-3.5 millimeters by a small hard particle feed machine, 4-6 parts of bitter herbs, 5-7 parts of hydrilla verticillata and 3-4 parts of water vitamin plant mixed stirring material with the particle size of 2.5-3.5 millimeters are mixed and used as auxiliary materials, and the daily dosage is 2-5 Kg/m2。
The above examples are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
The above examples are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
The parts not involved in the present invention are the same as or can be implemented using the prior art.
Claims (2)
1. A breeding method of young round-head wedge mussels is characterized by comprising the following steps: the method comprises the following steps: the method comprises a parent mussel cultivation step, a seedling picking step, a parasitism stage mussel seedling cultivation step, a post-emergence mussel seedling cultivation step and a small mussel cultivation step, and specifically comprises the following steps:
1) and parent mussel cultivation: in late autumn, selecting parent clams with the age of 2-5 years, the weight of 150-200 g and the shell length of 8-12 cm; the appearance of parent mussels is thick and solid, the mussel shells are bright and bright, and the parent mussels are free of parasites, strong in physique and free of any diseases; after being frightened, the two shells are closed quickly, and water is sprayed forcefully; putting into a pool for cultivation;
2) and seedling picking: selecting host fish for nutrition-enhanced cultivation; in the whole intensified culture process, selecting special granular materials for host fish nutrition intensified culture, wherein the animal protein content in the granular materials reaches 25% -30%, feeding the granular materials into fish materials, the daily bait feeding amount is 1% -3% of the weight of the fish, the daily bait feeding frequency is 3 times, feeding is carried out at 7 am, 13 pm and 18 evening, the daily bait feeding amount accounts for 1/3 of the daily bait feeding amount, the regulation is flexible according to weather, water temperature and ingestion conditions, the bait feeding amount is generally mastered to be eaten after about 1 hour every time, and the feeding is stopped two days before the seedlings are posted;
3) collecting seedlings; the density of the hookworm larvae attached to the host fish is 3-4 ten thousand per kg of the host fish; the host fish is bream; the bream is an individual with strong physique, lively swimming, bright color, no injury and no disease, and the weight is 50 +/-10 g;
4) in the step of cultivating the mussel seedling in the parasitic stage, the stocking density of the host fish is 1m21.5-2 kg of host fish is cultivated in the breeding pond, the flow rate of pond water is controlled to be 1-1.5T/h,
in the clam seedling breeding step, 3-4 thousands of clam seedlings are bred in a breeding pond with the breeding density of 1m2,
in the clam seedling cultivation step, firstly spreading a layer of fine sand at the bottom of a pond, then adding nutrient mud, adding the nutrient mud every 2 days, wherein the adding amount is slightly lower than the shell height of young clams, in order to avoid excessive mud and dead angles of accumulated mud, which cause the young clams to be buried in the pond and suffocated, quantitatively adding the nutrient mud, operating the pond at least 2 times every day, evacuating clam seedlings, and during operating the pond, evacuating the clam seedlings by using a small bamboo rake on the pond side to avoid stepping on the pond for operation, wherein the pond water flow rate is slow firstly and fast secondly, the flow rate is controlled to be 1-2T/h, and the flow rate is higher than the daytime flow rate at night,
5) in the step of cultivating the small mussels, the stocking density of the small mussels is 1m2Preferably 200-300 clam seedlings are released in the clam breeding pond; 150-200 clam seedlings are bred in each net cage, 65 million clam seedlings are bred in each hectare, and in the step of breeding the small clams, the flow rate of pond water is controlled to be 2-3T/h in the early stage and the later stage.
2. The breeding method of young hyriopsis cumingii according to claim 1, wherein the breeding method comprises the following steps: the special granular material for the nutrient enrichment culture of the host fish comprises the following components in parts by weight: 25-30 parts of fish meal, 10-15 parts of rapeseed cakes, 8-10 parts of barley malt, 10-15 parts of bran, 2 parts of gypsum powder, 1 part of anhydrous betaine, 0.15-0.2 part of vitamin E, 0.1-0.2 part of bacillus preparation, 0.05-0.1 part of vitamin C, 0.2-0.4 part of gamma-aminobutyric acid and 0.2-0.3 part of special enzyme for wheat are mixed, and then the mixture is prepared into a fish forming material with the particle size of 2.5-3.5 millimeters by a small hard particle feed machine, 4-6 parts of bitter herbs, 5-7 parts of hydrilla verticillata and 3-4 parts of water vitamin plant mixed stirring material with the particle size of 2.5-3.5 millimeters are mixed and used as auxiliary materials, and the daily dosage is 2-5 Kg/m2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011339895.3A CN112535129A (en) | 2020-11-25 | 2020-11-25 | Breeding method of young ball-headed wedge mussels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011339895.3A CN112535129A (en) | 2020-11-25 | 2020-11-25 | Breeding method of young ball-headed wedge mussels |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115399268A (en) * | 2022-10-09 | 2022-11-29 | 安徽水韵环保股份有限公司 | Artificial ripening imbalance liriodendron breeding technology |
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| CN101142903A (en) * | 2007-09-18 | 2008-03-19 | 方德军 | Method for breeding young hyriopsis cumingii |
| CN101637136A (en) * | 2008-07-29 | 2010-02-03 | 上海海洋大学 | Method for breeding juvenile mussel of hyriopsis schlegeli |
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