CN112273290A - High-survival-rate deep water culture method for golden pomfret - Google Patents
High-survival-rate deep water culture method for golden pomfret Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 241000630524 Taractes rubescens Species 0.000 title claims abstract description 35
- 238000012136 culture method Methods 0.000 title description 3
- 241000276694 Carangidae Species 0.000 claims abstract description 28
- 238000009395 breeding Methods 0.000 claims abstract description 18
- 239000000843 powder Substances 0.000 claims description 32
- 241000251468 Actinopterygii Species 0.000 claims description 27
- 230000003385 bacteriostatic effect Effects 0.000 claims description 25
- GVJHHUAWPYXKBD-UHFFFAOYSA-N (±)-α-Tocopherol Chemical compound OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 claims description 16
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 16
- 238000005286 illumination Methods 0.000 claims description 16
- 238000004140 cleaning Methods 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 14
- 230000000366 juvenile effect Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 241000220690 Sargassum pallidum Species 0.000 claims description 11
- JDLKFOPOAOFWQN-VIFPVBQESA-N Allicin Natural products C=CCS[S@](=O)CC=C JDLKFOPOAOFWQN-VIFPVBQESA-N 0.000 claims description 10
- 240000000691 Houttuynia cordata Species 0.000 claims description 10
- 235000013719 Houttuynia cordata Nutrition 0.000 claims description 10
- JDLKFOPOAOFWQN-UHFFFAOYSA-N allicin Chemical compound C=CCSS(=O)CC=C JDLKFOPOAOFWQN-UHFFFAOYSA-N 0.000 claims description 10
- 235000010081 allicin Nutrition 0.000 claims description 10
- 235000021323 fish oil Nutrition 0.000 claims description 10
- 238000012216 screening Methods 0.000 claims description 9
- 229930003427 Vitamin E Natural products 0.000 claims description 8
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 229940044175 cobalt sulfate Drugs 0.000 claims description 8
- 229910000361 cobalt sulfate Inorganic materials 0.000 claims description 8
- KTVIXTQDYHMGHF-UHFFFAOYSA-L cobalt(2+) sulfate Chemical compound [Co+2].[O-]S([O-])(=O)=O KTVIXTQDYHMGHF-UHFFFAOYSA-L 0.000 claims description 8
- WIGCFUFOHFEKBI-UHFFFAOYSA-N gamma-tocopherol Natural products CC(C)CCCC(C)CCCC(C)CCCC1CCC2C(C)C(O)C(C)C(C)C2O1 WIGCFUFOHFEKBI-UHFFFAOYSA-N 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000011780 sodium chloride Substances 0.000 claims description 8
- 229940046009 vitamin E Drugs 0.000 claims description 8
- 235000019165 vitamin E Nutrition 0.000 claims description 8
- 239000011709 vitamin E Substances 0.000 claims description 8
- 238000005276 aerator Methods 0.000 claims description 7
- 239000000645 desinfectant Substances 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 7
- 230000031700 light absorption Effects 0.000 claims description 7
- 238000002791 soaking Methods 0.000 claims description 7
- 230000003203 everyday effect Effects 0.000 claims description 2
- 230000004083 survival effect Effects 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 230000002496 gastric effect Effects 0.000 abstract 1
- 235000015097 nutrients Nutrition 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 19
- 230000004888 barrier function Effects 0.000 description 6
- 238000007873 sieving Methods 0.000 description 5
- 241001274979 Selenotoca multifasciata Species 0.000 description 3
- 230000000844 anti-bacterial effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 241000251464 Coelacanthiformes Species 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 241000276618 Perciformes Species 0.000 description 1
- 241000219000 Populus Species 0.000 description 1
- 241000719209 Trachinotus ovatus Species 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000002180 anti-stress Effects 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000037406 food intake Effects 0.000 description 1
- 235000012631 food intake Nutrition 0.000 description 1
- 230000036737 immune function Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
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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
- A01K61/00—Culture of aquatic animals
- A01K61/10—Culture of aquatic animals of fish
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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
- A01K61/00—Culture of aquatic animals
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- A01K61/13—Prevention or treatment of fish diseases
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- A23K10/12—Animal feeding-stuffs obtained by microbiological or biochemical processes by fermentation of natural products, e.g. of vegetable material, animal waste material or biomass
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- A23K—FODDER
- A23K50/00—Feeding-stuffs specially adapted for particular animals
- A23K50/80—Feeding-stuffs specially adapted for particular animals for aquatic animals, e.g. fish, crustaceans or molluscs
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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
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- 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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Abstract
The invention provides a high-survival-rate deep-water breeding method for golden pomfret, which comprises the following steps: the artificial formula feed is combined with food in deep sea, can be beneficial to adjusting the intra-area gastrointestinal ecological balance, improving the absorption and utilization of nutrient elements by golden pompanos, and improving the survival rate of the golden pompanos.
Description
Technical Field
The invention relates to the field of aquaculture, in particular to a high-survival-rate deep-water culture method for golden pomfret.
Background
Golden pompano belongs to the class Osteichthyes, order Perciformes, family carangidae, genus Populus, and is known as trachinotus ovatus, commonly known as yellow pompano and golden pompano. The body is oval, the height of the body is 1.7-1.9 times of the height of the body, the tail handle is short and thin, the low-temperature resistance of the golden pomfret is not strong, the suitable temperature range is 16-36 ℃, the most suitable temperature for growing the golden pomfret is 22-28 ℃, when the temperature is reduced to be below 16 ℃, the food intake is stopped, the golden pomfret dies at the temperature below 14 ℃, the golden pomfret can normally live for a short time at the temperature of 9-10 ℃, but the temperature in the deep sea is low, so that the survival rate of the golden pomfret is low.
Disclosure of Invention
In view of the above, the invention provides a high-survival-rate deep-water breeding method for golden pomfret, which solves the above problems.
The technical scheme of the invention is realized as follows: a high-survival-rate deep water breeding method for golden pomfret comprises the following steps: the method comprises the following steps:
s1, setting of the net cage: selecting a water area with a certain wind shielding barrier or relatively small wind waves as a culture area, arranging a deepwater net cage with the depth of 6.0 multiplied by 4.0 m-8.0 multiplied by 6.0m in the culture area, arranging the net cage below the water depth of 10m, and arranging an aerator;
s2, putting the fry: soaking the fry in bacteriostatic solution with the volume of 3-4 times for 10-30 min, and stocking 10000-12000 golden pomfret fries with tail length of 1-3 cm in each net cage;
s3, water quality management: measuring and adjusting the salinity to 12-34, ammonia nitrogen to 0.2-0.4 mg/L, dissolved oxygen to 2-8 mg/L, pH value to 7.0-8.0, and illumination to 1000-2000 Lux, wherein the illumination is adjusted by using black light absorption cloth;
s4, cultivation management:
(3) and (3) managing the net cage: cleaning the net cage every month, cleaning the net cage with disinfectant, screening the net cage every 30-50 days,
(4) feeding the feed:
and (3) during the fry period: feeding the golden pompano twice a day, once in the morning and at night, wherein the feed is 12-25% of the weight of the golden pompano, continuously feeding for 30-50 days,
in the juvenile fish stage: feeding artificial compound feed for three times every day, once in the morning, at noon and evening, wherein the feed is 30-35% of the weight of the golden pompano, continuously feeding for 20-30 days,
and (3) during a juvenile fish period: placing the net cage below the water depth of 18m, feeding the artificial mixed feed once a day, and feeding at 8 o' clock in the morning, wherein the fed feed is 30-35% of the weight of the golden pompano and is continuously fed for 10-25 d;
the artificial compound feed is composed of 6-13 parts of fermented minced fillet powder, 2-6 parts of deep sea fish oil, 3-8 parts of sargassum pallidum powder, 8-12 parts of houttuynia cordata powder and 1-3 parts of allicin.
Further, the bacteriostatic solution in the step S2 is a sodium chloride solution, cobalt sulfate and vitamin E in a weight ratio of 1-3: 2-2.3: 0.6-1.2.
Further, the weight ratio of the fry to the bacteriostatic solution in the step S2 is 3: 0.1-0.4.
Further, the artificial formula feed in the step S4 is composed of 9 parts of fermented minced fillet powder, 4 parts of deep sea fish oil, 5 parts of sargassum pallidum powder, 10 parts of houttuynia cordata powder and 2 parts of allicin.
Further, in the cultivation management of the step S4, when the weight of the fish reaches 100g, the cultivation density is controlled to be 30-60 tail meters3No further screening was performed.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, golden pomfret is placed in deep water for cultivation, a net cage is arranged, water quality management is adjusted, water quality stability is maintained, seawater is adjusted to provide suitable water quality requirements for fry, factors such as illumination are manually controlled, and a good cultivation environment is provided for fry; the fish fry is subjected to bacteriostatic treatment before being put in, and bacteriostatic solution is scientifically prepared, so that the antibacterial property, stress resistance, cold resistance and other characteristics of the fish fry are effectively improved, and the non-specific immune function of the fish fry is improved in the later culture process; the artificial compound feed for the golden pomfret is controlled by stages, different feeding modes are adopted in the growth process of the fingerlings, and the feeding amount and the feeding time are controlled.
Detailed Description
In order to better understand the technical content of the invention, specific examples are provided below to further illustrate the invention.
The experimental methods used in the examples of the present invention are all conventional methods unless otherwise specified.
The materials, reagents and the like used in the examples of the present invention can be obtained commercially without specific description.
Example 1
A high-survival-rate deep water breeding method for golden pomfret comprises the following steps: the method comprises the following steps:
s1, setting of the net cage: selecting a water area with a certain wind shielding barrier or relatively small wind waves as a culture area, arranging a deepwater net cage of 6.0 multiplied by 4.0m in the culture area, arranging the net cage below the water depth of 10m, and arranging an aerator;
s2, putting the fry: soaking the fry in bacteriostatic solution with the volume of 3 times for 10min, wherein 10000 tail bodies of the golden pomfret fry with the length of 1cm are bred in each net cage, the bacteriostatic solution comprises sodium chloride solution, cobalt sulfate and vitamin E in a weight ratio of 1:2:0.6, and the weight ratio of the fry to the bacteriostatic solution is 3: 0.1;
s3, water quality management: measuring the adjusted salinity of 12, ammonia nitrogen of 0.2mg/L, dissolved oxygen of 2mg/L, pH value of 7.0, and illumination of 1000Lux, wherein the illumination is adjusted by using black light absorption cloth;
s4, cultivation management:
(5) and (3) managing the net cage: cleaning the net cage every month, cleaning with disinfectant, sieving every 30 days, and controlling the culture density to be 30m when the weight of the fish reaches 100g3No screening is performed;
(6) feeding the feed:
and (3) during the fry period: feeding artificial mixed feed twice a day, once in the morning and evening, wherein the feed is 12% of the weight of golden pompano, continuously feeding for 30d,
in the juvenile fish stage: feeding artificial mixed feed three times a day, once in the morning, at noon and evening, wherein the feed is 30% of the weight of golden pompano, continuously feeding for 20d,
and (3) during a juvenile fish period: placing the net cage below the water depth of 18m, feeding the artificial mixed feed once a day, and feeding at 8 o' clock in the morning, wherein the feed is 30% of the weight of the golden pompano and is continuously fed for 10 d;
the artificial compound feed consists of 6 parts of fermented minced fillet powder, 2 parts of deep sea fish oil, 3 parts of sargassum pallidum powder, 8 parts of houttuynia cordata powder and 1 part of allicin.
Example 2
A high-survival-rate deep water breeding method for golden pomfret comprises the following steps: the method comprises the following steps:
s1, setting of the net cage: selecting a water area with a certain wind shielding barrier or relatively small wind waves as a culture area, arranging a deep-water net cage with the depth of 8.0 multiplied by 6.0m in the culture area, arranging the net cage below the water depth of 10m, and arranging an aerator;
s2, putting the fry: soaking the fry in bacteriostatic solution with the volume 4 times that of the fry for 30min, stocking the butterfish fingerlings with the tail length of 12000 cm in each net cage, wherein the bacteriostatic solution comprises sodium chloride solution, cobalt sulfate and vitamin E in a weight ratio of 3:2.3:1.2, and the weight ratio of the fry to the bacteriostatic solution is 3: 0.4;
s3, water quality management: measuring the adjusted salinity of 34, ammonia nitrogen of 0.4mg/L, dissolved oxygen of 8mg/L, pH value of 8.0, and illumination of 2000Lux, wherein the illumination is adjusted by using black light absorption cloth;
s4, cultivation management:
(7) and (3) managing the net cage: cleaning the net cage every month, cleaning with disinfectant, sieving every 50 days, and controlling the culture density to be 60 m when the weight of the fish reaches 100g3No screening is performed;
(8) feeding the feed:
and (3) during the fry period: feeding artificial mixed feed twice a day, once in the morning and evening, wherein the feed is 25% of the weight of golden pompano, continuously feeding for 50 days,
in the juvenile fish stage: feeding artificial mixed feed three times a day, once in the morning, at noon and evening, wherein the feed is 35% of the weight of golden pompano, continuously feeding for 30d,
and (3) during a juvenile fish period: placing the net cage below the water depth of 18m, feeding the artificial mixed feed once a day, and feeding at 8 o' clock in the morning, wherein the feed is 35% of the weight of the golden pompano and is continuously fed for 25 d;
the artificial compound feed consists of 13 parts of fermented minced fillet powder, 6 parts of deep sea fish oil, 8 parts of sargassum pallidum powder, 12 parts of houttuynia cordata powder and 3 parts of allicin.
Example 3
A high-survival-rate deep water breeding method for golden pomfret comprises the following steps: the method comprises the following steps:
s1, setting of the net cage: selecting a water area with a certain wind shielding barrier or relatively small wind waves as a culture area, arranging a deepwater net cage of 6.0 multiplied by 4.0m in the culture area, arranging the net cage below the water depth of 10m, and arranging an aerator;
s2, putting the fry: soaking the fry in bacteriostatic solution with the volume 3 times that of the fry for 20min, stocking 11000 butterfish fingerlings with the tail length of 2cm in each net cage, wherein the bacteriostatic solution comprises sodium chloride solution, cobalt sulfate and vitamin E in a weight ratio of 2:2.2:0.9, and the weight ratio of the fry to the bacteriostatic solution is 3: 0.2;
s3, water quality management: measuring the adjusted salinity of 22, ammonia nitrogen of 0.3mg/L, dissolved oxygen of 6mg/L, pH value of 7.5, and illumination of 1500Lux, wherein the illumination is adjusted by using black light absorption cloth;
s4, cultivation management:
(9) and (3) managing the net cage: cleaning the net cage every month, cleaning with disinfectant, sieving every 40 days, and controlling the culture density to 40 m when the weight of the fish reaches 100g3No screening is performed;
(10) feeding the feed:
and (3) during the fry period: feeding artificial mixed feed twice a day, once in the morning and evening, wherein the feed is 22% of the weight of golden pompano, continuously feeding for 40d,
in the juvenile fish stage: feeding artificial mixed feed three times a day, once in the morning, at noon and evening, wherein the feed is 32% of the weight of golden pompano, continuously feeding for 25d,
and (3) during a juvenile fish period: placing the net cage below the water depth of 18m, feeding the artificial mixed feed once a day, and feeding at 8 o' clock in the morning, wherein the feed is 35% of the weight of the golden pompano and is continuously fed for 22 d;
the artificial compound feed consists of 9 parts of fermented minced fillet powder, 4 parts of deep sea fish oil, 5 parts of sargassum pallidum powder, 10 parts of houttuynia cordata powder and 2 parts of allicin.
Example 4
A high-survival-rate deep water breeding method for golden pomfret comprises the following steps: the method comprises the following steps:
s1, setting of the net cage: selecting a water area with a certain wind shielding barrier or relatively small wind waves as a culture area, arranging a deepwater net cage of 6.0 multiplied by 4.0m in the culture area, arranging the net cage below the water depth of 10m, and arranging an aerator;
s2, putting the fry: soaking the fry in bacteriostatic solution with the volume of 3 times for 10min, wherein 10000 tail bodies of the golden pomfret fry with the length of 1cm are bred in each net cage, the bacteriostatic solution comprises sodium chloride solution, cobalt sulfate and vitamin E in a weight ratio of 1:2:0.6, and the weight ratio of the fry to the bacteriostatic solution is 3: 0.1;
s3, water quality management: measuring the adjusted salinity of 12, ammonia nitrogen of 0.2mg/L, dissolved oxygen of 2mg/L, pH value of 7.0, and illumination of 1000Lux, wherein the illumination is adjusted by using black light absorption cloth;
s4, cultivation management:
(11) and (3) managing the net cage: cleaning the net cage every month, cleaning with disinfectant, sieving every 30 days, and controlling the culture density to be 30m when the weight of the fish reaches 100g3No screening is performed;
(12) feeding the feed:
and (3) during the fry period: feeding artificial mixed feed twice a day, once in the morning and evening, wherein the feed is 12% of the weight of golden pompano, continuously feeding for 30d,
in the juvenile fish stage: feeding artificial mixed feed three times a day, once in the morning, at noon and evening, wherein the feed is 30% of the weight of golden pompano, continuously feeding for 20d,
the artificial compound feed consists of 9 parts of fermented minced fillet powder, 4 parts of deep sea fish oil, 5 parts of sargassum pallidum powder, 10 parts of houttuynia cordata powder and 2 parts of allicin.
Example 5
A high-survival-rate deep water breeding method for golden pomfret comprises the following steps: the method comprises the following steps:
s1, setting of the net cage: selecting a water area with a certain wind shielding barrier or relatively small wind waves as a culture area, arranging a deepwater net cage of 6.0 multiplied by 4.0m in the culture area, arranging the net cage below the water depth of 10m, and arranging an aerator;
s2, putting the fry: soaking the fry in bacteriostatic solution with the volume 4 times that of the fry for 30min, stocking the butterfish fingerlings with the tail length of 12000 cm in each net cage, wherein the bacteriostatic solution comprises sodium chloride solution, cobalt sulfate and vitamin E in a weight ratio of 3:2.3:1.2, and the weight ratio of the fry to the bacteriostatic solution is 3: 0.4;
s3, water quality management: measuring the adjusted salinity of 34, ammonia nitrogen of 0.4mg/L, dissolved oxygen of 8mg/L, pH value of 8.0, and illumination of 2000Lux, wherein the illumination is adjusted by using black light absorption cloth;
s4, cultivation management:
(13) and (3) managing the net cage: cleaning the net cage every month, cleaning with disinfectant, sieving every 50 days, and controlling the culture density to be 60 m when the weight of the fish reaches 100g3No screening is performed;
(14) feeding the feed:
and (3) during the fry period: feeding artificial mixed feed twice a day, once in the morning and evening, wherein the feed is 25% of the weight of golden pompano, continuously feeding for 50 days,
in the juvenile fish stage: feeding artificial mixed feed three times a day, once in the morning, at noon and evening, wherein the feed is 35% of the weight of golden pompano, continuously feeding for 30d,
and (3) during a juvenile fish period: placing the net cage below the water depth of 18m, feeding the artificial mixed feed once a day, and feeding at 8 o' clock in the morning, wherein the feed is 35% of the weight of the golden pompano and is continuously fed for 25 d;
the artificial compound feed consists of 9 parts of fermented minced fillet powder, 4 parts of deep sea fish oil, 5 parts of sargassum pallidum powder, 10 parts of houttuynia cordata powder and 2 parts of allicin.
Example 6
The difference between the embodiment and the embodiment 3 is that the bacteriostatic solution in the step S2 is a sodium chloride solution, cobalt sulfate and vitamin E in a weight ratio of 1:3: 0.4.
Comparative example 1
The difference between the comparative example and the example 3 is that, in the step S2, the fry is not soaked in the bacteriostatic solution.
Comparative example 2
The difference between the comparative example and the example 3 is that the golden pomfret high-survival-rate deep-water breeding method comprises the step S2 of stocking the golden pomfret fingerlings with the tail length of 15000 cm to 1-3 cm in each net cage.
Comparative example 3
The difference between the comparative example and the example 3 is that the water quality management in the step S3 of the high-survival-rate deep water breeding method for the golden pomfret is to measure and adjust the salinity by 10, measure the ammonia nitrogen by 0.5mg/L, measure the dissolved oxygen by 8mg/L, measure the pH value by 8.0 and measure the illumination by 3000 Lux.
Comparative example 4
The difference between the comparative example and the example 3 is that the artificial compound feed consists of 15 parts of fermented minced fish powder, 8 parts of deep sea fish oil, 10 parts of sargassum pallidum powder, 15 parts of houttuynia cordata powder and 5 parts of allicin.
Comparative example 5
The difference between the comparative example and the example 3 is that the sargassum pallidum powder in the artificial compound feed is replaced by the same amount of the algae powder in the high-survival-rate deep-water breeding method for the golden pomfret.
First, determination of survival rate
According to the breeding method of the embodiment 1-6 and the comparative example 1-5, the survival rate is counted from 6 months to the adult fish period, and the results are shown in the following table:
| group of | Average adult fish survival rate (%) | Average adult fish body weight (g) |
| Example 1 | 93.7 | 703.4 |
| Example 2 | 95.5 | 700.5 |
| Example 3 | 97.2 | 706.3 |
| Example 4 | 93.9 | 700.5 |
| Example 5 | 93.5 | 698.3 |
| Example 6 | 94.4 | 693.4 |
| Comparative example 1 | 74.8 | 650.6 |
| Comparative example 2 | 72.7 | 651.3 |
| Comparative example 3 | 74.9 | 653.4 |
| Comparative example 4 | 72.3 | 650.2 |
| Comparative example 5 | 72.1 | 645.7 |
From the above table, the survival rate of the golden pomfret can be effectively improved according to the breeding method, compared with the comparative example 1 and the examples 1-6, the prepared antibacterial solution can act on the fingerlings to activate the antibacterial and anti-stress performance of the fingerlings, compared with the comparative example 2, the survival rate of the fry is improved under a proper stocking density, and compared with the comparative examples 3, 4 and 5, the situation that the golden pomfret grows well and is high in weight is shown when the golden pomfret is bred in an adaptive sea area environment and under an artificial compound feed, the best average survival rate of adult pomfret is 97.2%, and the average adult weight is 706.3 g.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. A high-survival-rate deep-water breeding method for golden pomfret is characterized by comprising the following steps: the method comprises the following steps:
s1, setting of the net cage: selecting a water area with a wind screen and small wind waves as a culture area, arranging a deepwater net cage with the depth of 6.0 multiplied by 4.0 m-8.0 multiplied by 6.0m in the culture area, arranging the net cage below the water depth of 10m, and arranging an aerator;
s2, putting the fry: soaking the fry in bacteriostatic solution with the volume 3-4 times that of the fry for 10-30 min, and stocking 10000-12000 golden pomfret fries with tail length of 1-3 cm in each net cage;
s3, water quality management: measuring and adjusting the salinity to 12-34, ammonia nitrogen to 0.2-0.4 mg/L, dissolved oxygen to 2-8 mg/L, pH value to 7.0-8.0, and illumination to 1000-2000 Lux, wherein the illumination is adjusted by using black light absorption cloth;
s4, cultivation management:
(1) and (3) managing the net cage: cleaning the net cage every other month, cleaning the net cage with disinfectant, and screening the net cage every 30-50 days;
(2) feeding the feed:
and (3) during the fry period: feeding the golden pompano twice a day, once in the morning and at night, wherein the feed is 12-25% of the weight of the golden pompano, continuously feeding for 30-50 days,
in the juvenile fish stage: feeding artificial compound feed for three times every day, once in the morning, at noon and evening, wherein the feed is 30-35% of the weight of the golden pompano, continuously feeding for 20-30 days,
and (3) during a juvenile fish period: placing the net cage below the water depth of 18m, feeding the artificial mixed feed once a day, and feeding at 8 o' clock in the morning, wherein the fed feed is 30-35% of the weight of the golden pompano and is continuously fed for 10-25 d;
the artificial compound feed is composed of 6-13 parts of fermented minced fillet powder, 2-6 parts of deep sea fish oil, 3-8 parts of sargassum pallidum powder, 8-12 parts of houttuynia cordata powder and 1-3 parts of allicin.
2. The high-survival-rate deep-water breeding method of golden pomfret as claimed in claim 1, wherein the method comprises the following steps: the bacteriostatic solution in the step S2 comprises sodium chloride solution, cobalt sulfate and vitamin E in a weight ratio of 1-3: 2-2.3: 0.6-1.2.
3. The high-survival-rate deep-water breeding method of golden pomfret as claimed in claim 1, wherein the method comprises the following steps: the weight ratio of the fry to the bacteriostatic solution in the step S2 is 3: 0.1-0.4.
4. The high-survival-rate deep-water breeding method of golden pomfret as claimed in claim 1, wherein the method comprises the following steps: the artificial compound feed in the step S4 is composed of 9 parts of fermented minced fillet powder, 4 parts of deep sea fish oil, 5 parts of sargassum pallidum powder, 10 parts of houttuynia cordata powder and 2 parts of allicin.
5. The high-survival-rate deep-water breeding method of golden pomfret as claimed in claim 1, wherein the method comprises the following steps: in the cultivation management of the step S4, when the weight of the fish reaches 100g, the cultivation density is controlled to be 30-60 tail meters3No further screening was performed.
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| NL2035606A (en) * | 2022-10-26 | 2024-05-14 | Hainan Acad Of Ocean And Fisheries Sciences | Method of synchronously supplying fish fry without screening for large fishing ground |
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