CN106922597B - High-yield swimming crab breeding method based on concealed object facility - Google Patents
High-yield swimming crab breeding method based on concealed object facility Download PDFInfo
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/003—Aquaria; Terraria
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/003—Aquaria; Terraria
- A01K63/006—Accessories for aquaria or terraria
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a high-yield swimming crab breeding method based on a concealed object facility. According to the invention, a plurality of concealates are uniformly distributed in the culture platform, and the trapping effect of the concealates on the swimming crabs and the field protection characteristics of the swimming crabs are utilized to form relatively independent fields, so that the moving range of the swimming crabs in the molting period is limited in the respective fields and the peripheral areas, and the swimming crabs are attracted by the moving area (deep groove) of the swimming crabs and the bait-trapping area (bait casting platform) of the swimming crabs, so that the swimming crabs in the molting period are reduced from being attacked by the same species. On the basis, the invention improves and integrates the technologies of scientifically setting residue-preventing concealable objects, dividing the living functional area of the swimming crabs, increasing the turbidity of the water body, introducing the male crabs in the later period of cultivation and the like, greatly improves the survival rate of cultivation and the yield of unit water body, and has remarkable economic benefit.
Description
Technical Field
The invention relates to the technical field of aquaculture, in particular to a portunid high-yield culture method based on a concealed object facility.
Background
The portunus trituberculatus is one of the important Chinese aquaculture varieties, has delicious meat quality, rich nutrition and high economic value, and enjoys great name at home and abroad. In recent years, with the breakthrough of artificial breeding technology, the development of pond culture industry is rapid, the national culture area reaches 50 ten thousand mu in 2014, and the yield is 11.9 ten thousand tons. However, the healthy sustainable development of the industry is always hindered by the problems that the existing swimming crab pond culture mode and the related technology are relatively lagged, the culture survival rate is low, and the unit yield is not high (the yield per mu is only about 30-60 kg).
Researches show that factors causing low survival rate of swimming crab pond culture are the most important reason of extremely serious internal phase residue phenomenon of the swimming crab seeds besides germplasm, bait, water quality and diseases. On one hand, the swimming crabs are living and fighting, the field is strong, the crabs which are still in the soft shell period after the swimming crabs exuviate are fragile and easy to be killed and preyed by other similar individuals, on the other hand, most of the existing swimming crab culture ponds are formed by reforming old shrimp ponds, the ponds are aged, the landform of the bottom of the pond is flat, and the bottom is hard mud or sludge, so that the swimming crabs cannot be hidden during the growth and exuviation period.
At present, farmers try to put various branches, crocks, water pipes and the like in swimming crab aquaculture ponds, such as an anti-killing net piece arranged in an authorized notice number CN 101790965B. Practice shows that the concealates can play a certain role in improving the yield of the swimming crabs. However, the concealed objects have various materials and forms, the cultivation effect is uneven, and scientific comparison and demonstration are lacked, so that the concealed objects are not well popularized and applied in the cultivation production.
In addition, the price of female portunids with good gonad development is more than 5 times that of male portunids, so that farmers like to breed the female portunids, most of the current breeding modes are to breed the female portunids and the male portunids simultaneously in 6 months, and the male portunids are induced, fished out, destroyed or sold (the price is very low, only 5 yuan/kg) in 8 months, and only part of the male portunids are reserved for mating with the female portunids to promote the gonad development of the female portunids. However, the method not only increases the breeding cost due to the low breeding value of the male crabs, but also reduces the survival rate of female crabs due to the killing of the male crabs in the early stage of breeding.
In view of the above reasons, the invention aims to improve and integrate the technologies of scientifically setting residue-preventing concealable objects, dividing the living functional area of the swimming crabs, increasing the turbidity of the water body, introducing the male crabs in the later stage of cultivation and the like so as to greatly improve the cultivation survival rate of the swimming crabs and the yield of the unit water body.
Disclosure of Invention
In order to improve the swimming crab culture yield and economic benefit, the invention provides a high-yield swimming crab culture method based on a concealed object facility.
The technical scheme adopted by the invention is as follows:
a high-yield swimming crab culture method based on hidden facilities comprises three parts of (I) culture pond preparation, (II) fry putting and breeding, and (III) water quality regulation.
Preparing a culture pond.
(a) Early preparation: selecting a flat-bottom culture pond, wherein a pond weir is arranged on the periphery of the flat-bottom culture pond, a culture area is arranged in the pond weir, a plurality of culture platforms are arranged in the culture area, a bait casting platform is arranged at the edge of the culture area, namely the position close to the pond weir, a deep groove is arranged between the culture platforms and the bait casting platform, and the bottoms of the culture platforms, the bait casting platform and the deep groove are sand bottom layers; and (4) carrying out decontamination, plowing, insolation, disinfection and pond fermentation on the culture pond.
(b) Arranging a concealed object: a plurality of concealed objects are uniformly arranged in the culture platform, the concealed objects can be completely covered after the culture pond stores water, and the concealed objects are square baskets with openings on the side surfaces.
(c) Pipe distribution: and a water inlet and drainage pipeline and an oxygen increasing disk are laid at the bottom of the deep groove, and the oxygen increasing disk is connected with an impeller supercharger arranged on the pool weir.
(d) Water storage: the water depth of the culture platform after water storage is kept 0.4 m.
(e) The region is naturally formed: the hidden objects and the peripheral areas thereof form a swimming crab sloughing area, the deep groove forms a swimming crab moving area due to high dissolved oxygen, and the bait casting platform forms a swimming crab bait region due to the attraction of baits.
And (II) putting and feeding seedlings.
(a) Stocking female crabs: in 6-month middle ten days, 8 to 12 grams of female seedlings are selected to be thrown into a culture pond, and the density is 1000 to 1400 seedlings per mu.
(b) Stocking the shrimp larvae: in 7 middle of the month, the Japanese prawn seedlings are put into a culture pond with the density of 10 ten thousand tails per mu.
(c) Supplementing the male crabs: in late 8 months, male crabs are put into the culture pond with the density of 100 crabs per mu. The male crab is used for mating with the female crab to promote the gonad development of the male crab, so as to improve the quality of the product.
(d) Feeding baits: feeding fresh and alive small trash fish twice a day, wherein the young trash fish is fed once at 5~6 in the morning and is eaten within 2 hours, and the young trash fish is fed once at 5~6 in the afternoon and is eaten within 4 hours.
(III) regulating and controlling the water quality.
(a) The water quality index is as follows: salinity is 24-26 per mill, PH is 8.5-8.9, DO is 5 mg/L, ammonia nitrogen is less than 0.4 mg/L, nitrite is less than 0.15 mg/L.
(b) Aeration: continuously aerating and aerating the culture pond, and setting the impeller supercharger according to 3 kilowatts per 10 mu.
(c) Increasing turbidity: and sprinkling the opacifier once every two circumferential culture ponds, wherein the opacifier is counted by 0.5 kg/mu. The transparency of the water body is reduced, the probability of the swimming crabs being discovered or detected by the same type can be reduced, and the ratio of killing each other is reduced.
(d) Disinfecting and changing water: sterilizing every two weeks in a povidone iodine full tank, and changing water once a week, wherein the water change amount is not more than 1/3.
The side openings of the square baskets face in the same direction. The device can avoid the face-to-face of the swimming crabs to a certain extent, and reduce the fighting caused by the occupation of hidden objects among individual swimming crabs.
The length, width and height of the square basket are 35x25x24 cm, the distance is 50 cm, and the row spacing is 80 cm.
The square basket is formed by dividing a waste plastic basket into two parts, and the number of the square basket is 1200 per mu.
The height of the culture platform is the same as that of the feeding platform, and the bottom surface of the deep groove is 0.3 to 0.5 meter lower than that of the culture platform.
The opacifier is dye or sodium humate.
The invention has the beneficial effects that: according to the invention, a plurality of concealates are uniformly distributed in the culture platform, and the trapping effect of the concealates on the swimming crabs and the field protection characteristics of the swimming crabs are utilized to form relatively independent fields, so that the moving range of the swimming crabs in the molting period is limited in the respective fields and the peripheral areas, and the swimming crabs are attracted by the moving area (deep groove) of the swimming crabs and the bait-trapping area (bait casting platform) of the swimming crabs, so that the swimming crabs in the molting period are reduced from being attacked by the same species. On the basis, the invention improves and integrates the technologies of scientifically setting residue-preventing concealable objects, dividing the living functional area of the swimming crabs, increasing the turbidity of the water body, introducing the male crabs in the later period of cultivation and the like, greatly improves the survival rate of cultivation and the yield of unit water body, and has remarkable economic benefit.
Drawings
FIG. 1 is a schematic view of a culture pond according to an embodiment of the present invention.
FIG. 2 isbase:Sub>A sectional view taken along line A-A in the example of the present invention.
Figure 3 is a schematic view of a concealment of an embodiment of the present invention.
Detailed Description
The present invention will be further described below with reference to an example of a test cultivation pond of 64.2mx31m size.
In the embodiment, as shown in fig. 1, fig. 2 and fig. 3, a flat-bottom culture pond is selected, a pond weir 1 is arranged on the periphery of the flat-bottom culture pond, a culture area 2 is arranged in the pond weir 1, a plurality of culture platforms 3 are arranged in the culture area 2, a bait casting platform 4 is arranged at the edge of the culture area 2, namely, at a position close to the pond weir 1, a deep groove 5 is arranged between the culture platforms 3 and the bait casting platform 4, and the bottoms of the culture platforms 3, the bait casting platform 4 and the deep groove 5 are sand substrate layers 6; and (4) carrying out decontamination, plowing, insolation, disinfection and pond fermentation on the culture pond.
A plurality of concealed objects 8 are uniformly arranged in the culture platform 3, the concealed objects 8 can be completely covered after the culture pond stores water, and the concealed objects 8 are square baskets with an opening on the side surface; the side openings of the square baskets face the same direction; the length, width and height of the square basket are 35x25x24 cm, the distance is 50 cm, and the line spacing is 80 cm; the square basket is formed by dividing a waste plastic basket into two parts, and the number of the square basket is 1200 per mu.
And a water inlet and outlet pipeline and an oxygen increasing disk 7 are laid at the bottom of the deep groove 5, the oxygen increasing disk 7 is connected with an impeller supercharger arranged on the tank weir 1, and the impeller supercharger is arranged according to 3 kilowatts/10 mu.
The water depth of the culture platform 3 after water storage is kept 0.4 m; the height of the culture platform 3 is the same as that of the feeding platform 4, and the bottom surface of the deep groove 5 is 0.3 to 0.5 meter lower than that of the culture platform 3.
The concealed objects 8 and the peripheral areas thereof form a swimming crab shelling area, the deep grooves 5 form a swimming crab moving area due to high dissolved oxygen, and the bait casting platform 4 forms a swimming crab bait hanging area due to bait attraction.
The culture platform 3 of the embodiment is uniformly provided with a plurality of concealates 8, the concealates 8 are used for trapping portunids and the field protection characteristics of the portunids, so that relatively independent fields are formed, the moving range of the portunids in the molting period is limited in the respective fields and the peripheral areas, and the portunids are attracted by the moving area (deep groove 5) of the portunids and the bait-trapping area (bait casting platform 4) of the portunids in the molting period, so that the portunids in the molting period are prevented from being attacked by the same kind of portunids.
Particularly, the square basket-shaped concealment object 8 with an opening on one side has a good trapping effect on the portunids, and many portunids can automatically climb into the concealment object 8, so that the concealment effect is better along with the time delay, and can reach 75 to 90 percent in the daytime. The concealment object 8 of this embodiment can achieve the best concealment effect, consistent with the habit that swimming crabs tend to hide in the back, and have sheltered places on the left, right, and above the body. In addition, as the swimming crabs can leave the concealment object 8 to go out for fishing bait at night, the concealment object 8 of the same crab is not fixed, the phenomenon that the concealment object 8 is seized disorderly among the individual swimming crabs can occur, the side openings of the square baskets face towards the same direction, the face-to-face situation of the swimming crabs can be avoided to a certain extent, and the fighting caused by the seizure of the concealment object 8 among the individual swimming crabs is reduced.
This embodiment also has other characteristics: the concealed objects 8 and the periphery in the breeding platform 3 are main breeding areas of the swimming crabs, the deep groove 5 is an auxiliary breeding area, and the combination of the main breeding areas and the auxiliary breeding area can utilize the breeding area 2 to the maximum extent; the bait casting platform 4 is a feeding area, can slow down the decay speed of bait on water quality, and is convenient for removing residual bait; the 35x25x24 cm preferable for the concealed object 8 can be formed by dividing the most common waste plastic fruit basket into two parts, and has the advantages of uniform specification and low cost; the concealates 8 arranged in the matrix can ensure that the swimming crabs are uniformly distributed on the culture platform 3, the utilization rate of the culture pond is higher, and the sizes of the individual swimming crabs are uniform; in addition, the plastic material of the covering material 8 has an adsorption effect on algae, and thus has a certain water quality purification effect.
The swimming crab culture test is carried out on the basis of the culture pond in the embodiment, and the swimming crab culture test mainly comprises two parts of offspring seed putting and feeding and water quality control.
Seed putting and raising: (a) stocking female crabs: in 6 ten days in the middle of the month, 8-12 g of female seedlings are selected to be thrown into a culture pond, and the density is 1000-1400 seedlings/mu; (b) stocking the shrimp fries: in 7 ten days in the middle of the month, putting the penaeus japonicus seedlings into a culture pond with the density of 10 ten thousand tails per mu; (c) supplementary of the male crabs: in late 8 months, male crabs are put into the culture pond with the density of 100 crabs per mu; (d) bait feeding: feeding fresh and alive small trash fish twice a day, wherein the young trash fish is fed once at 5~6 in the morning and is eaten within 2 hours, and the young trash fish is fed once at 5~6 in the afternoon and is eaten within 4 hours.
For 8 to 12 g of female crabs released in the middle of 6 months, the method for obtaining the female crabs can be introduced in the text of the technology for culturing all-female swimming crabs (Liu Bo) in the mixed culture mode of crabs, shrimps, shellfish and the like. The method of feeding the female crabs firstly and then supplementing the male crabs ensures that the female crabs can be completely cultured in 6~8 months in the embodiment, and the price of the female crabs is far higher than that of the male crabs in winter, so the economic benefit can be maximized; in addition, in the last 8 th month, the period is just the period of male crab elimination for common farmers, and the supplementary male crabs can be directly obtained by other farmers without cost; in addition, generally speaking, the ratio of the male crabs to the female crabs for the swimming crab cultivation is 10, and as the male crabs are put in the later period, the ratio of the male crabs can be properly reduced, the mutual killing of the swimming crabs can be further reduced, and the cultivation yield is improved; male crabs thrown in the last 8 th month are used for mating with female crabs to promote the gonad development of the male crabs so as to improve the quality of products.
Water quality regulation and control: (a) water quality index: salinity is 24-26 per mill, PH is 8.5-8.9, DO is 5 mg/L, ammonia nitrogen is less than 0.4 mg/L, nitrite is less than 0.15 mg/L; (b) aeration: continuously carrying out oxygen increasing and aeration on the culture pond; (c) increasing turbidity: sprinkling an opacifier once every two circumferential culture ponds, wherein the opacifier is 0.5 kg/mu; (d) disinfection and water change: sterilizing with povidone iodine full tank every two weeks, and changing water once per week with water change amount not more than 1/3.
And splashing the opacifier once every two circumferential culture ponds, wherein the main purpose is to reduce the transparency of the water body, and the turbid water body can reduce the rate of self-killing of the swimming crabs due to the fact that the swimming crabs prey on the visual sense. And similarly, the oxygen is continuously added into the culture pond for aeration, so that the function of stirring the water body can be achieved in addition to the purpose of oxygen supplement.
The opacifier of the present embodiment may be dye or sodium humate, and the opacifier has the functions of increasing turbidity, detoxicating, fertilizing water, etc. Because dyes such as Sudan red, prussian blue, basic bright yellow and the like have certain micro toxicity, sodium humate is relatively preferred.
The embodiment improves and integrates the technologies of scientifically setting the concealed objects for preventing residues, dividing the living functional areas of the swimming crabs, increasing the turbidity of the water body, introducing the male crabs in the later period of cultivation and the like, and greatly improves the survival rate of cultivation and the yield of unit water body. In the embodiment, the survival rate of the female crabs reaches more than 55 percent, the output of the female crabs is between 150 and 200 kg/mu, and in addition, 50 to 70 kg/mu of penaeus japonicus is produced, so that the economic benefit is remarkable.
It should be understood that the above-described embodiments of the present invention are merely examples for illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. There is no need or no way to give poor examples of all embodiments. And such obvious changes and modifications as fall within the true spirit of the invention are deemed to be covered by the present invention.
Claims (6)
1. A high-yield swimming crab breeding method based on concealed object facilities is characterized by comprising the following steps: comprises three parts of (I) culture pond preparation, (II) fry putting and raising, and (III) water quality regulation and control;
preparing a culture pond:
(a) Early preparation: selecting a flat-bottom culture pond, wherein a pond weir (1) is arranged on the periphery of the flat-bottom culture pond, a culture area (2) is arranged in the pond weir (1), a plurality of culture platforms (3) are arranged in the culture area (2), a bait casting platform (4) is arranged at the edge of the culture area (2) close to the pond weir (1), a deep groove (5) is arranged between the culture platforms (3) and the bait casting platform (4), and a sand bottom layer (6) is arranged at the bottoms of the culture platforms (3), the bait casting platform (4) and the deep groove (5); cleaning, plowing, insolating, disinfecting and pond growing are carried out on the culture pond;
(b) Arranging a concealed object: a plurality of concealed objects (8) are uniformly arranged in the culture platform (3), the concealed objects (8) can be completely covered after the culture pond stores water, and the concealed objects (8) are square baskets with side openings;
(c) Pipe distribution: a water inlet and drainage pipeline and an oxygen increasing disc (7) are laid at the bottom of the deep groove (5), and the oxygen increasing disc (7) is connected with an impeller supercharger arranged on the pool weir (1);
(d) Water storage: the water depth of the culture platform (3) after water storage is kept 0.4 m;
(e) The region is naturally formed: the hidden object (8) and the peripheral area thereof form a swimming crab sloughing area, the deep groove (5) forms a swimming crab moving area due to high dissolved oxygen, and the bait casting platform (4) forms a swimming crab bait pulling area due to the attraction of baits;
(II) putting and feeding seedlings:
(a) Stocking female crabs: in 6 ten days in the middle of the month, 8-12 g of female seedlings are selected to be thrown into a culture pond, and the density is 1000-1400 seedlings/mu;
(b) Stocking young shrimps: in 7 ten days in the middle of the month, putting the penaeus japonicus seedlings into a culture pond with the density of 10 ten thousand tails per mu;
(c) Supplementing the male crabs: in late 8 months, male crabs are put into the culture pond with the density of 100 crabs per mu, and the source of the male crabs is the male crabs removed by common farmers in the period of male crab removal;
(d) Bait feeding: feeding fresh and alive small trash fish twice a day, wherein the young trash fish is fed once at 5~6 in the morning and is eaten within 2 hours, and the young trash fish is fed once at 5~6 in the afternoon and is eaten within 4 hours;
(III) water quality regulation:
(a) The water quality index is as follows: salinity is 24-26 per mill, PH is 8.5-8.9, DO is 5 mg/L, ammonia nitrogen is less than 0.4 mg/L, nitrite is less than 0.15 mg/L;
(b) Aeration: continuously aerating oxygen in the culture pond, and setting an impeller supercharger according to 3 kilowatts/10 mu;
(c) Increasing turbidity: sprinkling an opacifier once every two circumferential culture ponds, wherein the opacifier is counted by 0.5 kg/mu;
(d) Disinfecting and changing water: sterilizing with povidone iodine full tank every two weeks, and changing water once per week with water change amount not more than 1/3.
2. The high-yield swimming crab breeding method based on the concealed object facility according to claim 1, wherein the method comprises the following steps: the side openings of the square baskets face in the same direction.
3. The high-yield swimming crab breeding method based on the concealed object facility according to claim 1, wherein the method comprises the following steps: the length, width and height of the square basket are 35x25x24 cm, the distance is 50 cm, and the row spacing is 80 cm.
4. The high-yield swimming crab breeding method based on the concealed object facility according to the claims 1, 2 and 3, which is characterized in that: the square basket is formed by dividing a waste plastic basket into two parts, and the number of the square basket is 1200 per mu.
5. The high-yield swimming crab breeding method based on the concealed object facility according to claim 1, wherein the method comprises the following steps: the height of the culture platform (3) is the same as that of the feeding platform (4), and the bottom surface of the deep groove (5) is 0.3 to 0.5 meter lower than that of the culture platform (3).
6. The high-yield swimming crab breeding method based on the concealed object facility according to claim 1, wherein the method comprises the following steps: the opacifier is dye or sodium humate.
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| CN102119675A (en) * | 2010-12-30 | 2011-07-13 | 广东海洋大学 | Method for cultivating portunus pelagicus |
| CN103843704A (en) * | 2013-12-30 | 2014-06-11 | 浙江省海洋开发研究院 | Method for cultivating young portunid |
| CN103875566A (en) * | 2014-03-21 | 2014-06-25 | 苏州市阳澄湖现代农业产业园特种水产养殖有限公司 | Method for ecologically breeding portunus trituberculatus in ponds |
| CN105145432A (en) * | 2015-09-02 | 2015-12-16 | 上海海洋大学 | Method for ecologically fattening and regulating quality of pond breeding crabs |
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| CN102119675A (en) * | 2010-12-30 | 2011-07-13 | 广东海洋大学 | Method for cultivating portunus pelagicus |
| CN103843704A (en) * | 2013-12-30 | 2014-06-11 | 浙江省海洋开发研究院 | Method for cultivating young portunid |
| CN103875566A (en) * | 2014-03-21 | 2014-06-25 | 苏州市阳澄湖现代农业产业园特种水产养殖有限公司 | Method for ecologically breeding portunus trituberculatus in ponds |
| CN105145432A (en) * | 2015-09-02 | 2015-12-16 | 上海海洋大学 | Method for ecologically fattening and regulating quality of pond breeding crabs |
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