CN113973758A - Method for effectively preventing and treating EHP (enterotoxin-associated protein) in salt pan shrimp culture - Google Patents
Method for effectively preventing and treating EHP (enterotoxin-associated protein) in salt pan shrimp culture Download PDFInfo
- Publication number
- CN113973758A CN113973758A CN202011626711.1A CN202011626711A CN113973758A CN 113973758 A CN113973758 A CN 113973758A CN 202011626711 A CN202011626711 A CN 202011626711A CN 113973758 A CN113973758 A CN 113973758A
- Authority
- CN
- China
- Prior art keywords
- shrimps
- shrimp
- ehp
- pond
- day
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 241000238557 Decapoda Species 0.000 title claims abstract description 98
- 150000003839 salts Chemical class 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 19
- 101710146739 Enterotoxin Proteins 0.000 title description 2
- 239000000147 enterotoxin Substances 0.000 title description 2
- 231100000655 enterotoxin Toxicity 0.000 title description 2
- 108090000623 proteins and genes Proteins 0.000 title description 2
- 102000004169 proteins and genes Human genes 0.000 title description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 230000002265 prevention Effects 0.000 claims abstract description 20
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 244000052769 pathogen Species 0.000 claims abstract description 9
- 230000001717 pathogenic effect Effects 0.000 claims abstract description 9
- 238000009966 trimming Methods 0.000 claims abstract description 5
- RESSOZOGQXKCKT-UHFFFAOYSA-N ethene;propane-1,2-diol Chemical compound C=C.CC(O)CO RESSOZOGQXKCKT-UHFFFAOYSA-N 0.000 claims abstract description 3
- 230000001965 increasing effect Effects 0.000 claims description 27
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims description 18
- 230000008859 change Effects 0.000 claims description 16
- 241000595940 Notostraca Species 0.000 claims description 14
- 241000193830 Bacillus <bacterium> Species 0.000 claims description 9
- 241000894006 Bacteria Species 0.000 claims description 9
- 239000004310 lactic acid Substances 0.000 claims description 9
- 235000014655 lactic acid Nutrition 0.000 claims description 9
- 241001247197 Cephalocarida Species 0.000 claims description 8
- 241000186660 Lactobacillus Species 0.000 claims description 7
- 229940039696 lactobacillus Drugs 0.000 claims description 7
- 235000015099 wheat brans Nutrition 0.000 claims description 7
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 6
- 238000009395 breeding Methods 0.000 claims description 6
- 230000001488 breeding effect Effects 0.000 claims description 6
- 208000015181 infectious disease Diseases 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 241000251468 Actinopterygii Species 0.000 claims description 5
- 239000012267 brine Substances 0.000 claims description 5
- 239000013535 sea water Substances 0.000 claims description 5
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 5
- 235000014676 Phragmites communis Nutrition 0.000 claims description 4
- 241000607598 Vibrio Species 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 4
- 230000006806 disease prevention Effects 0.000 claims description 4
- 230000008020 evaporation Effects 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 4
- 230000003203 everyday effect Effects 0.000 claims description 4
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000000292 calcium oxide Substances 0.000 claims description 3
- 235000012255 calcium oxide Nutrition 0.000 claims description 3
- 238000012258 culturing Methods 0.000 claims description 3
- 235000013601 eggs Nutrition 0.000 claims description 3
- 238000003306 harvesting Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 241000190687 Gobius Species 0.000 claims description 2
- 238000009360 aquaculture Methods 0.000 claims description 2
- 244000144974 aquaculture Species 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 claims description 2
- 230000001939 inductive effect Effects 0.000 claims description 2
- 230000001418 larval effect Effects 0.000 claims description 2
- 238000002407 reforming Methods 0.000 claims description 2
- 230000001502 supplementing effect Effects 0.000 claims description 2
- 241000143060 Americamysis bahia Species 0.000 abstract 1
- 241000238426 Anostraca Species 0.000 abstract 1
- 241000271566 Aves Species 0.000 description 6
- 150000001413 amino acids Chemical class 0.000 description 3
- 241000223935 Cryptosporidium Species 0.000 description 2
- 241001125931 Hoplias malabaricus Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 241000238565 lobster Species 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000035772 mutation Effects 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 230000004083 survival effect Effects 0.000 description 2
- 206010003694 Atrophy Diseases 0.000 description 1
- 241000223203 Coccidioides Species 0.000 description 1
- 241000938605 Crocodylia Species 0.000 description 1
- 235000019750 Crude protein Nutrition 0.000 description 1
- 241000238424 Crustacea Species 0.000 description 1
- 208000004232 Enteritis Diseases 0.000 description 1
- 241000124008 Mammalia Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 241000243190 Microsporidia Species 0.000 description 1
- 244000089486 Phragmites australis subsp australis Species 0.000 description 1
- 241000251539 Vertebrata <Metazoa> Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000037444 atrophy Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 230000002458 infectious effect Effects 0.000 description 1
- 230000000968 intestinal effect Effects 0.000 description 1
- 210000004347 intestinal mucosa Anatomy 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 201000000585 muscular atrophy Diseases 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 244000045947 parasite Species 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- 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
- A01K61/00—Culture of aquatic animals
- A01K61/50—Culture of aquatic animals of shellfish
- A01K61/59—Culture of aquatic animals of shellfish of crustaceans, e.g. lobsters or shrimps
-
- 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
- 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
- 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
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Zoology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
A method for effectively preventing and controlling EHP (ethylene propylene glycol) in the culture of shrimps in a salt pan comprises the following steps: the method comprises the steps of pond trimming, stress-resistant variety selection, EHP pathogen detection, shrimp fry coarsening and salinization, whole-process feeding of brine shrimp, water quality regulation, water quality detection, biological prevention and control, physical prevention and control and stress prevention.
Description
Technical Field
The invention belongs to the field of aquatic products, and particularly relates to a method for effectively preventing and treating EHP (EHP) in salt pan shrimp culture.
Background
The intestinal microsporidian (EHP) belongs to Phylum Apicomplex (Phyllum Apicomplex), Class Sporozoa (Class Sporozoa), order Cryptosporidia (Cryptosporidium) and family Microsporozoaceae of intestinal epithelium, is widely distributed, is a coccidioid parasite parasitized in a single cell and an obligate cell, and can cause opportunistic pathogenic protozoa of animal digestive tract lesion. Currently, there are about 20 more species of cryptosporidium that have been isolated from a variety of vertebrates, including mammals, birds, reptiles, crustaceans and fish.
In recent years, the EHP infection rate of the prawns can reach more than 60 percent, and the most obvious characteristics are that the prawns grow slowly, the individual difference of the prawns is large, and white feces are accompanied; the severe patients have enteritis, muscular atrophy and hepatopancreatic atrophy, do not have turbid muscle, and do not cause the death of prawns in large quantities. There is currently no effective treatment, the only one being to reduce the chances of infection through strict management. However, single prevention and control is often ineffective.
Disclosure of Invention
In order to solve the problems, the invention provides a method for effectively preventing and treating EHP (EHP) in the culture of shrimps in a salt pan, which comprises the following steps:
1. big change, shallow change and deep change: most of the primary evaporation ponds of the seawater salt field are 1000-5000 mu, and the water level is 50-60 cm. The water body is large, which is not beneficial to artificial regulation and control; the water body is shallow, which is not beneficial to the prawn to avoid the adverse weather and the enemy. Transformed into a single 100-500 mu water level of 120-150 cm. And (3) arranging ring ditches outside 10-20 meters of the four side slopes, wherein the width of each ring ditch is 20-30 meters, and the depth of each ring ditch is 40-60 cm.
2. Trimming the pond: in non-production seasons, draining water, using 50-200 kg of quicklime per mu, properly using multiple purposes at low-lying positions, mechanically ploughing for 20-30 cm, and airing for more than 30 days.
3. Selecting stress-resistant varieties: selecting excellent varieties which are bred by focusing on stress resistance characters. The species with the growth speed is emphasized, so that the disease prevention and control difficulty of the salt pan shrimp culture mode is increased.
EHP pathogen detection: the germ plasm, the larva and the fry are selected to check an EHP pathogen detection report, and all links are negative and can be used as the fry for the cultivation of the shrimps in the salt pan.
5. And (3) marking the shrimp larvae to be coarsely salted: the salinity of qualified P5 shrimps in life is gradually increased from 25 per mill to 40 per mill to 65 per mill to adapt to the culture environment of a salt pan, water is changed once every 2 days after the qualified P5 shrimps are stabilized for 3 days, the water is increased by 4 to 5 per mill each time, the concentration of brine for increasing the salinity is mixed with 100 to 150 per mill prepared normal seawater until the salinity is 15 to 20 per mill higher than that of a primary pond, the brine is added into the primary pond for increasing the salinity, the brine is changed twice every day after the salinity is adjusted to 40 per mill, the salinity is increased by 2.5 per mill to 3.5 per mill each time until the salinity is 65 per mill.
6. One-to-one crude salt formation: in the 4 processes, a small pond can be built in the conditional pond according to the proportion of 100-200: 1, a plastic greenhouse is covered for heat preservation, the salinity can be matched with the same, the transportation link of the shrimp seeds can be omitted, the standard thickness can be properly increased, and the resistance of the shrimp seeds to the outside is increased.
7. Feeding fairy shrimp in the whole process: the artemia protein content is high, the crude protein content is 50-60%, the amino acid content is 21-29%, the artemia amino acid composition is similar to the shrimp body amino acid composition, the weight increase of prawns is facilitated, and the growth speed of the prawns eating the artemia is high. And (3) culturing the artemia within 65-95 per mill, and feeding the shrimps with different salinity after harvesting. The fairy shrimp is fed on the day of seedling release, the fairy shrimp is hatched in a secondary brine pond (with the salinity of 65-95 per mill) in advance, 1-1.5 kilograms per mu is fed, and the quantity is increased by 5-10% every day in two times. If the water quality transparency is more than 60cm, the feeding amount of the fairy shrimp is reduced to a half; if the water quality transparency is more than 80cm, the artemia stop feeding, the water change amount is increased, and minced fillet of the lance tail goby (C.stigmaias) fermented by lactic acid bacteria is supplemented.
8. Water quality regulation and control: the water quality can be regulated by using the wheat bran fermented by the bacillus and the lactobacillus, and the wheat bran fermented by the bacillus and the lactobacillus is used once every half month. Bacillus was used on day 1, lactic acid bacteria on day 6 and lactic acid bacteria on day 11 of each cycle.
9. And (3) water quality detection: the conventional water quality indexes DO, Ph and transparency are respectively once a day in the morning and at the evening, and the salinity, ammonia nitrogen and nitrite are respectively once a day; vibrio is administered every three days. The vibrio treating method comprises the following steps: reducing feed (oral administration lactobacillus), and increasing fairy shrimp amount; the water exchange amount is increased. EHP was measured every 15 days.
10. Biological prevention and control: 1.2-1.5 million seedlings are released per mu, the prawn grows for 15-20 days, the prawn grows for about 5cm, 4-5 cm of lance tail goby (C.stigmaias) with consistent salinity with the target pond is released per mu and domesticated, the ratio of the fish to the prawn is 500-1000: 1, reeds can be planted in the saline-alkali soil around the culture pond to attract some birds to lay eggs, the habitat is increased, and the birds can timely clean diseased and weak shrimps floating on the water surface, and the method is also one of effective means for disease biological control.
11. Physical prevention and control: when the shrimps grow to about 7-8 cm, a modified shrimp guide net is placed every 40-50 mu by utilizing the characteristic that the sick shrimps and the weak shrimps move along the sides of the pool and attached to the water surface, a 30-50 m 60-mesh net is pulled from the side slope to 5-10 cm above the water surface under the water by 30-50 cm, the shrimp guide net is arranged at one end far away from the side slope, the sick shrimps and the weak shrimps are induced into hubs, and the shrimps are cleaned once every 2-3 days, so that the sick shrimps and the weak shrimps are prevented from being eaten by healthy shrimps and the infection source is cut off.
12. Stress prevention: the weather mutation causes the prawns to generate stress, the stress is an important factor for the occurrence of the diseases of the prawns, and 30 g of Vc raw powder is splashed in a whole pool before and after the weather mutation (cold flow, strong wind, high temperature and the like).
Compared with the prior art, the invention has the following advantages:
1. the invention changes the primary evaporation pond of the seawater salt pan into a single culture pond, thereby enlarging the culture area.
2. The fermented minced fish of the lobster and tiger fish and wheat bran are used as the organic fertilizer water in the whole process.
3. The shrimp larvae are thickened, the standardized breeding is carried out in the early stage, and the salinization thickening is carried out in the later stage, so that the survival rate of the shrimps can be improved, and the yield per mu and the total output are greatly improved.
4. The whole process of the shrimp breeding is carried out by the fairy shrimp, which provides high-quality basic bait for the shrimp larvae, not only reduces the feed coefficient and the water pollution, but also can increase the survival rate and accelerate the growth speed of the shrimp larvae.
5. The disease prevention and control is the combination of biological prevention and control and physical prevention and control: the physical prevention and control is to arrange a shrimp guide net to eliminate the sick shrimps by utilizing the characteristics that the sick shrimps and the weak shrimps move along the sides of the pond and are attached to the water surface; the biological prevention and control is to attract birds to clean up sick shrimps and weak shrimps floating on the water surface in time by using the tail of the lance goby and the planted reed.
6. Detection of EHP pathogens: selecting germplasm, larvae and seedlings, checking an EHP (infectious EHP) pathogen detection report, and taking the seedlings as the seedlings for the culture of the shrimps in the salt pan after all links are negative.
The invention takes good effect from comprehensive prevention and control measures such as variety selection, fry detection, pond trimming in cultivation, crude salt marking of shrimp fries, nutrition enhancement, biological prevention and control, physical prevention and control and the like.
Detailed Description
Example 1
A method for effectively preventing and controlling EHP (ethylene propylene glycol) in the culture of shrimps in a salt pan comprises the following steps:
(1) big change, shallow change and deep change: reforming an original seawater salt pan evaporation pond with 1000-5000 mu and 60-70 cm water level into a single culture pond; the cultivation pond is a single 100-500 mu, the water level is 120-150 cm, a circular ditch is arranged outside 10-20 meters of four side slopes, the width of the circular ditch is 20-30 m, the depth of the circular ditch is 40-60 cm, and each cultivation pond is provided with an independent drainage system.
(2) Trimming the pond: draining off water in non-production seasons, using 50-200 kg of quicklime per mu, mechanically ploughing for 20-30 cm, and airing for more than 30 days;
(3) selecting stress-resistant varieties: selecting excellent varieties with emphasis on stress resistance character breeding, and increasing the disease prevention and control difficulty of the salt pan shrimp breeding mode by emphasizing the growth speed;
(4) detection of EHP pathogens: selecting germplasm, larvae and seedlings, checking an EHP (EHP pathogenic detection report), and taking the seedlings as the seedlings for the culture of the shrimps in the salt pan after all links are negative;
(5) and (3) marking the shrimp larvae to be coarsely salted: the salinity of the qualified P5 shrimps in life is gradually increased from 25 per mill to 40 per mill-65 per mill so as to adapt to the culture environment of a salt pan;
(6) one-to-one crude salt formation: building small ponds according to the proportion of 100-200: 1, covering a plastic greenhouse, properly increasing the standard thickness and increasing the resistance of the shrimp seeds to the outside, wherein the salinity is matched the same;
(7) feeding fairy shrimp in the whole process: culturing the artemia within 65-95 per mill, and feeding the shrimps with different salinity after harvesting; feeding the fairy shrimp 1-1.5 kg per mu on the seedling releasing day, and increasing by 5-10% every day in two times; if the water quality transparency is more than 60cm, the feeding amount of the fairy shrimp is reduced to a half; if the water quality transparency is more than 80cm, stopping feeding the artemia cystokiniana, increasing the water change amount, and supplementing minced fillet of the lobster and tiger fish fermented by lactic acid bacteria;
(8) water quality regulation and control: the water quality is regulated and controlled by the cooperation of the bacillus and the wheat bran fermented by the lactic acid bacteria, and the bacillus and the wheat bran fermented by the lactic acid bacteria are used once every half month; using bacillus on day 1, lactobacillus on day 6 and lactobacillus on day 11 of each cycle;
(9) and (3) water quality detection: the conventional water quality indexes DO, Ph and transparency are respectively once a day in the morning and at the evening, and the salinity, ammonia nitrogen and nitrite are respectively once a day; vibrio every three days; EHP pathogen was detected every 15 days;
(10) biological prevention and control: 1.2-1.5 million seedlings are released per mu, the prawn grows for 15-20 days, 4-5 cm of larval tail gobies with consistent salinity with a target pond are released per mu, and the ratio of fishes to shrimps is 500-1000: 1; reed is planted in saline-alkali soil around the aquaculture pond to attract birds to lay eggs, a habitat is increased, and the birds clean diseased shrimps and weak shrimps floating on the water surface in time;
(11) physical prevention and control: when the prawn grows to about 7-8 cm, placing a prawn guide net every 40-50 mu by utilizing the characteristics that the sick prawn and the weak prawn move along the sides of the pond and close to the water surface; pulling a 30-50 m 60-mesh net from the side slope and from 30-50 cm underwater to 5-10 cm above the water surface, arranging a shrimp guide net at one end far away from the side slope, inducing the sick shrimps and the weak shrimps into hubs, and cleaning once every 2-3 days to avoid the sick shrimps and the weak shrimps from being eaten by healthy shrimps and cutting off the infection source;
(12) stress prevention: the prawn is stressed by the sudden change of weather, and 30 g of Vc raw powder is splashed in a full pool per mu of land before and after the sudden change of weather.
The above-described embodiments are merely preferred embodiments of the present invention, and all equivalent changes or modifications of the structures, features and principles described in the claims of the present invention are included in the scope of the present invention.
Claims (3)
1. A method for effectively preventing and controlling EHP (ethylene propylene glycol) in the culture of shrimps in a salt pan is characterized by comprising the following steps:
(1) big change, shallow change and deep change: reforming an original seawater salt pan evaporation pond with 1000-5000 mu and 60-70 cm water level into a single culture pond;
(2) trimming the pond: draining off water in non-production seasons, using 50-200 kg of quicklime per mu, mechanically ploughing for 20-30 cm, and airing for more than 30 days;
(3) selecting stress-resistant varieties: selecting excellent varieties with emphasis on stress resistance character breeding, and increasing the disease prevention and control difficulty of the salt pan shrimp breeding mode by emphasizing the growth speed;
(4) detection of EHP pathogens: selecting germplasm, larvae and seedlings, checking an EHP (EHP pathogenic detection report), and taking the seedlings as the seedlings for the culture of the shrimps in the salt pan after all links are negative;
(5) and (3) marking the shrimp larvae to be coarsely salted: the salinity of the qualified P5 shrimps in life is gradually increased from 25 per mill to 40 per mill-65 per mill so as to adapt to the culture environment of a salt pan;
(6) one-to-one crude salt formation: building small ponds according to the proportion of 100-200: 1, covering a plastic greenhouse, properly increasing the standard thickness and increasing the resistance of the shrimp seeds to the outside, wherein the salinity is matched the same;
(7) feeding fairy shrimp in the whole process: culturing the artemia within 65-95 per mill, and feeding the shrimps with different salinity after harvesting;
(8) water quality regulation and control: the water quality is regulated and controlled by the cooperation of the bacillus and the wheat bran fermented by the lactic acid bacteria, and the bacillus and the wheat bran fermented by the lactic acid bacteria are used once every half month; using bacillus on day 1, lactobacillus on day 6 and lactobacillus on day 11 of each cycle;
(9) and (3) water quality detection: the conventional water quality indexes DO, Ph and transparency are respectively once a day in the morning and at the evening, and the salinity, ammonia nitrogen and nitrite are respectively once a day; vibrio every three days; EHP pathogen was detected every 15 days;
(10) biological prevention and control: 1.2-1.5 million seedlings are released per mu, the prawn grows for 15-20 days, 4-5 cm of larval tail gobies with consistent salinity with a target pond are released per mu, and the ratio of fishes to shrimps is 500-1000: 1; reed is planted in saline-alkali soil around the aquaculture pond to attract birds to lay eggs, a habitat is increased, and the birds clean diseased shrimps and weak shrimps floating on the water surface in time;
(11) physical prevention and control: when the prawn grows to about 7-8 cm, placing a prawn guide net every 40-50 mu by utilizing the characteristics that the sick prawn and the weak prawn move along the sides of the pond and close to the water surface; pulling a 30-50 m 60-mesh net from the side slope and from 30-50 cm underwater to 5-10 cm above the water surface, arranging a shrimp guide net at one end far away from the side slope, inducing the sick shrimps and the weak shrimps into hubs, and cleaning once every 2-3 days to avoid the sick shrimps and the weak shrimps from being eaten by healthy shrimps and cutting off the infection source;
(12) stress prevention: the prawn is stressed by the sudden change of weather, and 30 g of Vc raw powder is splashed in a full pool per mu of land before and after the sudden change of weather.
2. The EHP method for effectively controlling the cultivation of the shrimps in the salt pan as claimed in claim 1, wherein the cultivation ponds in step (1) are 100-500 mu single, the water level is 120-150 cm, the circular ditches are arranged outside the four slopes with the length of 10-20 m, the width of the circular ditches is 20-30 m, the depth of the circular ditches is 40-60 cm, and each cultivation pond is provided with an independent drainage system.
3. The method for effectively controlling EHP in the salt pan shrimp culture of claim 1, wherein the brine pan shrimp culture of step (7) is fed with fairy shrimp throughout: feeding the fairy shrimp 1-1.5 kg per mu on the seedling releasing day, and increasing by 5-10% every day in two times; if the water quality transparency is more than 60cm, the feeding amount of the fairy shrimp is reduced to a half; if the water quality transparency is more than 80cm, feeding by the fairy shrimp, increasing the water change amount, and supplementing minced fillet of the lance tail goby fermented by lactic acid bacteria.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011626711.1A CN113973758A (en) | 2020-12-31 | 2020-12-31 | Method for effectively preventing and treating EHP (enterotoxin-associated protein) in salt pan shrimp culture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011626711.1A CN113973758A (en) | 2020-12-31 | 2020-12-31 | Method for effectively preventing and treating EHP (enterotoxin-associated protein) in salt pan shrimp culture |
Publications (1)
Publication Number | Publication Date |
---|---|
CN113973758A true CN113973758A (en) | 2022-01-28 |
Family
ID=79731627
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202011626711.1A Pending CN113973758A (en) | 2020-12-31 | 2020-12-31 | Method for effectively preventing and treating EHP (enterotoxin-associated protein) in salt pan shrimp culture |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN113973758A (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107466934A (en) * | 2017-10-19 | 2017-12-15 | 孙振平 | A kind of culture of Penaeus vannamei method |
CN110122386A (en) * | 2019-06-12 | 2019-08-16 | 渤海水产股份有限公司 | A method of being suitble to high salinity mariculture prawn |
CN110250061A (en) * | 2019-07-18 | 2019-09-20 | 渤海水产股份有限公司 | A kind of thick method of mark being suitble to high salinity mariculture prawn |
CN110278898A (en) * | 2019-08-16 | 2019-09-27 | 渤海水产股份有限公司 | A kind of method of suitable salt-soda soil cultivation litopenaeus vannamei |
-
2020
- 2020-12-31 CN CN202011626711.1A patent/CN113973758A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107466934A (en) * | 2017-10-19 | 2017-12-15 | 孙振平 | A kind of culture of Penaeus vannamei method |
CN110122386A (en) * | 2019-06-12 | 2019-08-16 | 渤海水产股份有限公司 | A method of being suitble to high salinity mariculture prawn |
CN110250061A (en) * | 2019-07-18 | 2019-09-20 | 渤海水产股份有限公司 | A kind of thick method of mark being suitble to high salinity mariculture prawn |
CN110278898A (en) * | 2019-08-16 | 2019-09-27 | 渤海水产股份有限公司 | A kind of method of suitable salt-soda soil cultivation litopenaeus vannamei |
Non-Patent Citations (2)
Title |
---|
夏金树等: "对虾健康养殖综合集成技术", 《河北渔业》 * |
杨秀峰: "捕养良性循环-山东滨州生态盐田虾年产8万吨稳居全省首位 http://m.ce.cn/bwzg/202009/23/t20200923_35800452.shtml", 《中国经济网》 * |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Cheng et al. | Chinese mitten crab culture: current status and recent progress towards sustainable development | |
CN101675729B (en) | Method for cultivating and artificial breeding plateau saline-alkali water area northern pike | |
CN104472412A (en) | Coilia ectenes step type breeding method | |
CN109452203A (en) | A kind of flat Rockfish deep water mesh cage large size seedling seed breeding method of Xu Shi | |
CN113557998B (en) | Ecological breeding method for high-quality shrimps | |
CN112616739A (en) | Method for effectively preventing and treating taura syndrome in salt pan shrimp culture | |
CN102919186B (en) | Artificial breeding method for sillago sihama | |
CN112568159A (en) | Disease prevention and control method for organic shrimp culture | |
CN112042568B (en) | Ecological polyculture method for fish and shrimp | |
CN105557584A (en) | All-seawater larval rearing and indoor industrialized culture method for trachidermus fasciatus heckel | |
CN112889720A (en) | Method for breeding penaeus monodon | |
CN109362610A (en) | Method for cultivating fry of sepia reiliana | |
CN101971783B (en) | Full artificial ecological simulation breeding technology of burbot | |
Aydın et al. | Turbot and flounder aquaculture | |
CN114271225A (en) | Method for effectively preventing and treating white spot syndrome in salt pan shrimp culture | |
CN112931332A (en) | Method for cultivating green food prawn breeding shrimps | |
CN112970642A (en) | Method for cultivating organic breeding shrimps | |
CN112931331A (en) | Northern greenhouse prawn rotation culture method | |
CN112772495A (en) | Method for cultivating pollution-free seed shrimps of prawns | |
CN113973758A (en) | Method for effectively preventing and treating EHP (enterotoxin-associated protein) in salt pan shrimp culture | |
CN112772494A (en) | Pollution-free prawn culture method | |
CN113317247A (en) | Method for breeding pollution-free salt pan shrimps | |
CN112674005A (en) | Method for industrially culturing prawns with spotted shrimps | |
CN113317246A (en) | Grading culture method for salt pan shrimps | |
CN112369352A (en) | Pond out-of-season alternate breeding method for micropterus salmoides and litopenaeus vannamei |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |