CN114938787A - Marine intermediate cultivation method for young Oncorhynchus gigas - Google Patents
Marine intermediate cultivation method for young Oncorhynchus gigas Download PDFInfo
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- CN114938787A CN114938787A CN202210530039.9A CN202210530039A CN114938787A CN 114938787 A CN114938787 A CN 114938787A CN 202210530039 A CN202210530039 A CN 202210530039A CN 114938787 A CN114938787 A CN 114938787A
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- 238000012364 cultivation method Methods 0.000 title claims abstract description 10
- 241000277334 Oncorhynchus Species 0.000 title claims abstract description 6
- 241000565675 Oncomelania Species 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 241000206761 Bacillariophyta Species 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 19
- 241000237858 Gastropoda Species 0.000 claims description 15
- 239000002356 single layer Substances 0.000 claims description 3
- 238000012136 culture method Methods 0.000 claims description 2
- 230000000384 rearing effect Effects 0.000 claims 6
- 238000009395 breeding Methods 0.000 abstract description 19
- 230000001488 breeding effect Effects 0.000 abstract description 14
- 230000004083 survival effect Effects 0.000 abstract description 9
- 238000009360 aquaculture Methods 0.000 abstract description 2
- 244000144974 aquaculture Species 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract 1
- 241001083492 Trapa Species 0.000 description 5
- 235000003283 Pachira macrocarpa Nutrition 0.000 description 4
- 241000543567 Rapana venosa Species 0.000 description 4
- 235000014364 Trapa natans Nutrition 0.000 description 4
- 238000009364 mariculture Methods 0.000 description 4
- 235000009165 saligot Nutrition 0.000 description 4
- 241000189662 Calla Species 0.000 description 3
- 235000014653 Carica parviflora Nutrition 0.000 description 2
- 244000132059 Carica parviflora Species 0.000 description 2
- 241000202829 Eleocharis Species 0.000 description 2
- 238000000540 analysis of variance Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000001543 one-way ANOVA Methods 0.000 description 2
- 238000007619 statistical method Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 241000649484 Callosa Species 0.000 description 1
- 235000006653 Coccoloba diversifolia Nutrition 0.000 description 1
- 244000094617 Coccoloba diversifolia Species 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 102000011782 Keratins Human genes 0.000 description 1
- 108010076876 Keratins Proteins 0.000 description 1
- 241000237852 Mollusca Species 0.000 description 1
- 241001120534 Tectus niloticus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000013601 eggs Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- -1 ttaching Species 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
- A01K61/51—Culture of aquatic animals of shellfish of gastropods, e.g. abalones or turban snails
-
- 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
- A01K61/51—Culture of aquatic animals of shellfish of gastropods, e.g. abalones or turban snails
- A01K61/53—Baskets therefor
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/10—Animal feeding-stuffs obtained by microbiological or biochemical processes
- A23K10/16—Addition of microorganisms or extracts thereof, e.g. single-cell proteins, to feeding-stuff compositions
- A23K10/18—Addition of microorganisms or extracts thereof, e.g. single-cell proteins, to feeding-stuff compositions of live microorganisms
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K50/00—Feeding-stuffs specially adapted for particular animals
- A23K50/80—Feeding-stuffs specially adapted for particular animals for aquatic animals, e.g. fish, crustaceans or molluscs
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Animal Husbandry (AREA)
- Environmental Sciences (AREA)
- Polymers & Plastics (AREA)
- Zoology (AREA)
- Microbiology (AREA)
- Engineering & Computer Science (AREA)
- Marine Sciences & Fisheries (AREA)
- Biodiversity & Conservation Biology (AREA)
- Food Science & Technology (AREA)
- Physiology (AREA)
- Molecular Biology (AREA)
- Biotechnology (AREA)
- Biomedical Technology (AREA)
- Biochemistry (AREA)
- Health & Medical Sciences (AREA)
- Insects & Arthropods (AREA)
- Birds (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a marine intermediate cultivation method of young Oncomelania gigas, and belongs to the field of aquaculture. The invention provides an offshore intermediate cultivation method, which is characterized in that young Oncorhynchus fasciatus is arranged in a cultivation cage and is cultivated in offshore water body, and an attachment substrate for attaching bait is arranged in the cultivation cage, so that the water body space and bait resources are fully utilized, the material circulation in the water body is enhanced, the growth speed of benthic diatoms on corrugated plates is enhanced, the healthy growth of the Oncorhynchus fasciatus is promoted, and the yield and the quality of cultivated products are improved. The result of the invention shows that the growth speed of the young Oncorhynchus gigas is obviously improved, the culture time is greatly shortened, and the culture cost is saved; the survival rate of the young Oncomelania gigas is improved, the culture yield and quality are effectively improved, and obvious economic benefits are obtained; according to the breeding method, the young Oncomelania gigas ingest benthic diatoms growing on the corrugated plate in the cage, so that large-scale breeding space is saved, and good ecological benefits are achieved.
Description
The technical field is as follows:
the invention belongs to the field of aquaculture, and particularly relates to a marine intermediate cultivation method of young Oncomelania gigas.
The background art comprises the following steps:
the Trapa acorns (Trochus niloticus) belongs to the phylum mollusca, class gastropoda, order Meadoptera, family Callosa. The Calla gigantea shell is large, firm and thick, has a width of 70-120mm, is conical, has a gray surface, and has claret or dark red flame-shaped longitudinal patterns. The upper half part of each spiral layer is provided with 3-4 spiral ribs connected by granular protrusions for strengthening the keratin. Live on coral reef rocks from low tide lines to shallow sea. The method is mainly distributed around most of reef in southwest Taiwan and south of Hainan island in China, and Philippine islands, New Guinea islands, big reef, New Kalidonian islands, Fiji islands, Solomon islands, Beruo islands, Andaman islands and Nikeba islands in China.
The large calla snail is an important component of a coral reef ecosystem, and historically, the yield of the large calla snail in south China sand is about 100 tons. In recent years, the resource amount is rapidly reduced and the size of individuals is smaller and smaller due to environmental changes and transitional fishing. The androsaceus is sexually mature for 2-3 years, the height of the shell is about 70-100mm during sexual maturity, and the breeding season is between about 1 month and 3 months and between about 7 months and 9 months per year. In order to restore the Zaocys gigas population resources as early as possible and improve the ecological environment of the island, the group carries out artificial breeding work of the Zaocys gigas. And has achieved partial success.
However, benthic diatoms are needed to be used as food in the process of cultivating the water chestnut snail seedlings, and the cultivation of the benthic diatoms is easily restricted by the field, so that the cultivation scale and the cultivation period of the seedlings are limited by the factors. The phenomena of slow growth, high mortality and the like frequently occur in the breeding process of the water chestnut snail seeds.
Based on the situation, the cultivation method capable of improving the growth rate and the survival rate of the Eleocharis Turerosa seedlings and expanding the cultivation area and the cultivation efficiency of benthic diatoms is very urgent.
The invention content is as follows:
in order to overcome the defects of land-based breeding and solve the problems of large bait culture field area requirement, long breeding period, difficulty in large-scale breeding and the like in the breeding process of the young oncomelania gigas, the invention provides the marine intermediate breeding method of the young oncomelania gigas, which can obviously improve the growth speed of the oncomelania gigas, reduce the death rate, shorten the breeding period of the oncomelania gigas, increase the economic benefit of the breeding of the oncomelania gigas and promote the sustainable development and resource recovery of the breeding of the oncomelania gigas.
The invention aims to provide a marine intermediate breeding method of young Oncomelania gigas.
Preferably, the range of the offshore body of water is: offshore in the range of 500 meters and water depths in the range of 10 meters.
Preferably, two sheets of anchorage are placed in each farming cage.
Preferably, the attachment base is a corrugated plate.
Preferably, the bait is benthic diatom.
Preferably, the period of the young Oncomelania gigas in the offshore water body is 6 months.
Preferably, the breeding cage is a single-layer cage type; more preferably, the diameter of the culture cage is 60cm, and the mesh size of the cage is 10 meshes.
Preferably, 50 young snails are placed in each breeding cage.
The principle of the marine culture method of the young water chestnut snails is that corrugated plates for culturing the young water chestnut snails and attaching baits are placed in offshore water bodies, so that the space of the water bodies and bait resources are fully utilized, the material circulation in the water bodies is enhanced, the growth speed of benthic diatoms on the corrugated plates is enhanced, the healthy growth of the snails is promoted, and the yield and the quality of culture products are improved.
Compared with the prior art, the invention has the following beneficial effects:
1. the growth speed of the young Oncomelania gigas is obviously improved, the culture time is greatly shortened, and the culture cost is saved.
2. The survival rate of the young Oncomelania gigas is improved, the culture yield and quality are effectively improved, and obvious economic benefits are obtained.
3. According to the breeding method, the young Oncomelania gigas ingest benthic diatoms growing on the corrugated plate in the cage, so that large-scale breeding space is saved, and good ecological benefits are achieved.
The specific implementation mode is as follows:
the following examples are further illustrative of the present invention and are not intended to be limiting thereof.
Example 1: mariculture of young Oncomelania gigas
The sea breeding method of the young Eleocharis Turerosa comprises the following steps: 2500 young rapana venosa are taken in 3 months in 2021, 50 young rapana venosa are randomly taken in each cage, the initial shell height and shell width of the young rapana venosa are measured by a vernier caliper, the weight of the shell is weighed by an electronic balance, and then the young rapana venosa are filled in a culture cage (a single-layer cage, the diameter is 60cm, and the mesh size is 10 meshes) for 50 cages. Two corrugated plates with the specification of 50 multiplied by 40cm are placed in each cultivation cage, benthic diatom is attached to the corrugated plates, and marine cultivation is carried out (within 500 meters offshore, the water depth is within 10 meters). The control group is young snails which are bred in a shore-based cement pond and lay eggs and hatch in the same batch, and 50 individuals are cultured in each cage for 50 cages.
Sampling at 3 months of culture (i.e. 6 months at 2021), randomly taking 5 cages for each group, taking 50 individuals from each cage, measuring the height and width of the shells of the two shells by using a vernier caliper, weighing the shells by using an electronic balance, counting survival numbers, and calculating specific growth rates of the height and the weight of the shells according to the following formula:
the specific growth rate was 100(1nWt 2-lwt 1)/(t 2-t 1).
Where Wt2 represents the shell height (weight) at a certain time point, Wt1 represents the shell height (weight) at the last time point, t2 represents a certain time point, and t1 represents the last time point.
Statistical analysis of data SPSS 13.0 software was used to perform one-way analysis of variance (ANOVA) on data from different experimental groups at month 3 and LSD was used to analyze significance of differences between groups (P < 0.05).
This example shows that the specific growth rate of the young shell of Zaocys giganteus bred according to the method of the invention is up to 0.37 + -0.02% d -1 (Table 1), the specific growth rate of shell weight was at the highest0.98±0.11％d -1 (table 2), significantly greater than the specific growth rate of young snails in the control group; the survival rate of the young Oncomelania gigas cultured by the method is 98.8 +/-0.9 percent (shown in a table 3) at most, which is obviously greater than that of the young Oncomelania gigas of a control group.
TABLE 1 the specific growth rate of the young shell of Oncomelania gigas cultivated by the method of the invention is 3 months higher
TABLE 2 specific growth rate of the young Oncomelania gigas shells cultured by the method of the present invention weighing 3 months
Table 3 survival rate of young Oncorhynchus gigas cultured by the method of the invention for 3 months
Example 2 mariculture of young Oncomelania gigas
The mariculture method of the young Oncomelania gigas is the same as that in example 1. The control group is young snails which are bred in the same batch and spawned and hatched in a shore-based cement pond. The mariculture group and the control group are respectively provided with 50 cages, and 50 individuals of each cage are subjected to experiments.
Samples were taken at month 6 of culture (i.e., 9 months 2021), and 5 cages were randomly selected for each group, and 50 individuals were selected for each cage. The shell height and width of the two shells are measured by a vernier caliper, weighed by an electronic balance, and counted. The specific growth rates of shell height and shell weight were calculated according to the same formula as in example 1.
Statistical analysis of data SPSS 13.0 software was used to perform one-way analysis of variance (ANOVA) on data from different experimental groups at month 6 and LSD was used to analyze significance of differences between groups (P < 0.05).
The embodiment shows that the specific growth rate of the young shell of the Zaocys giganteus cultured by the method is 0.49 +/-0.01 percent d -1 (Table 4), the specific growth rate of the shell weight was 1.73. + -. 0.01% d at the highest -1 (Table 5), the specific growth rate of the young snails cultured by the control group is obviously different. The survival rate of the young snails cultured according to the method is 98.9 +/-1.4 percent (table 6) at most, which is obviously higher than that of the young snails of a control group.
TABLE 4 specific growth rate of the young Oncomelania gigas shells cultured by the method of the present invention is 6 months higher
TABLE 5 specific growth rate of 6 moon shells of the young Oncomelania gigas cultivated by the method of the present invention
TABLE 6 survival rate of young Oncomelania gigas cultivated by the method of the invention for 6 months
The results of the embodiment show that the offshore intermediate cultivation method improves the growth rate and the survival rate of the young Oncomelania gigas and can obtain good economic and ecological benefits.
Claims (8)
1. A marine intermediate cultivation method for young Oncomelania gigas is characterized in that the young Oncomelania gigas is placed in a cultivation cage and is cultivated in an offshore water body, and an attaching base for attaching bait is placed in the cultivation cage.
2. Offshore intermediary cultivation method according to claim 1, characterized in that the range of the offshore water body: offshore in the range of 500 meters and water depths in the range of 10 meters.
3. Marine intermediary cultivation method according to claim 1, characterised in that two sheets of attachment base are placed in each cultivation cage.
4. An offshore intermediate rearing method according to claim 1, characterized in that the attaching bases are corrugated plates.
5. An offshore intermediate rearing method according to claim 1, characterized in that the bait is benthic diatoms.
6. The marine intermediary culture method according to claim 1, characterized in that the period of the young Oncorhynchus gigas is cultivated in the offshore water body is 6 months.
7. An offshore intermediate rearing method according to claim 1, characterized in that the rearing cage is of the single-layer cage type having a diameter of 60cm and a cage mesh size of 10 mesh.
8. An offshore intermediate rearing method according to claim 7, characterized in that 50 young snails are placed per rearing cage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210530039.9A CN114938787A (en) | 2022-05-16 | 2022-05-16 | Marine intermediate cultivation method for young Oncorhynchus gigas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210530039.9A CN114938787A (en) | 2022-05-16 | 2022-05-16 | Marine intermediate cultivation method for young Oncorhynchus gigas |
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| Publication Number | Publication Date |
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| CN114938787A true CN114938787A (en) | 2022-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210530039.9A Pending CN114938787A (en) | 2022-05-16 | 2022-05-16 | Marine intermediate cultivation method for young Oncorhynchus gigas |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07184507A (en) * | 1993-12-24 | 1995-07-25 | Natetsukusu Kk | Culture of shellfish and culture device for shellfish |
| CN103960180A (en) * | 2014-04-16 | 2014-08-06 | 福建省水产研究所 | Short-necked clam large-area reclamation area larva breeding and sea area larva intermediate breeding method |
| CN108207716A (en) * | 2018-03-23 | 2018-06-29 | 中国科学院南海海洋研究所 | A kind of artificial raise seedling method of big top shell |
-
2022
- 2022-05-16 CN CN202210530039.9A patent/CN114938787A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07184507A (en) * | 1993-12-24 | 1995-07-25 | Natetsukusu Kk | Culture of shellfish and culture device for shellfish |
| CN103960180A (en) * | 2014-04-16 | 2014-08-06 | 福建省水产研究所 | Short-necked clam large-area reclamation area larva breeding and sea area larva intermediate breeding method |
| CN108207716A (en) * | 2018-03-23 | 2018-06-29 | 中国科学院南海海洋研究所 | A kind of artificial raise seedling method of big top shell |
Non-Patent Citations (2)
| Title |
|---|
| 王兵兵: ""管角螺组织切片与繁育及养殖的初步研究"", 《中国优秀硕士学位论文全文数据库 农业科技辑》 * |
| 陈傅晓 等: "塔形马蹄螺人工繁育技术研究", 《渔业现代化》 * |
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