CN111183923A - Method for cultivating eel fry - Google Patents

Method for cultivating eel fry Download PDF

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Publication number
CN111183923A
CN111183923A CN201910209341.2A CN201910209341A CN111183923A CN 111183923 A CN111183923 A CN 111183923A CN 201910209341 A CN201910209341 A CN 201910209341A CN 111183923 A CN111183923 A CN 111183923A
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crayfish
pond
parents
eel
fries
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CN201910209341.2A
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CN111183923B (en
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周文宗
谈万珂
朱姝
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Shanghai Yingji Agricultural Technology Co Ltd
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Shanghai Yingji Agricultural Technology Co Ltd
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00Culture of aquatic animals
    • A01K61/10Culture of aquatic animals of fish
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00Culture of aquatic animals
    • A01K61/50Culture of aquatic animals of shellfish
    • A01K61/59Culture of aquatic animals of shellfish of crustaceans, e.g. lobsters or shrimps
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Zoology (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Farming Of Fish And Shellfish (AREA)

Abstract

The invention discloses a method for cultivating eel and shrimp fries, which comprises the following steps: in the same cultivation pond, heating the water body for 1-4 months to cultivate Australia freshwater lobster fries, cultivating finless eel fries for 5-8 months, and cultivating crayfish fries for 9-12 months. According to the method, the characteristics of spring propagation, summer propagation and autumn propagation of the Australian crayfish, the same culture pond is utilized to breed the Australian crayfish, the finless eel and the crayfish all the year round, the space resources in the culture pond are fully utilized, the multiple purposes of one pond are realized, and the comprehensive culture benefit is improved.

Description

Method for cultivating eel fry
Technical Field
The invention relates to the technical field of aquaculture, in particular to a method for cultivating eel fry.
Background
The Australia freshwater lobster (Cherax quadricarinatus), also known as red crayfish, commonly known as small Qinglong, is one of the most famous and expensive freshwater economic lobsters in the world of Australia, has the advantages of delicious meat, large size, high meat yield, quick growth, poor appetite, strong adaptability, strong disease resistance and the like, and has better development prospect. In recent years, the breeding of crayfish (Procambarus clarkii) is also very hot, and the annual output value reaches over 1000 million yuan. The finless eel (Monopterusalbus) has high nutritional and medicinal values, is one of a few traditional agricultural products which are in short supply and short demand, and has wide artificial breeding prospect. Therefore, the development of breeding of Australian crayfish, crayfish and finless eel fries in production has become a hot field.
At present, a temperature-controlled soilless culture method is mainly adopted for breeding Australia freshwater lobster, ecological breeding and breeding of shrimp and rice are the mainstream for breeding the crayfish, soil-containing and soilless bionic breeding of net cages are the main for breeding the finless eels, the breeding of the finless eels is carried out in a mode of being in. Therefore, the utilization rate and the comprehensive benefit of the fry rearing pond are certainly improved.
Disclosure of Invention
The invention aims to overcome the defects and provides a method for cultivating eel fry, which utilizes the characteristics of spring propagation, summer propagation and autumn propagation of Australian crayfish, breeds Australian crayfish, finless eel and crayfish in the same cultivation pond all the year round, fully utilizes space resources in the cultivation pond and improves comprehensive cultivation benefit.
In order to achieve the purpose, the invention provides the following technical scheme that the method for cultivating the eel shrimp fries comprises the following steps: in the same cultivation pond, heating the water body for 1-4 months to cultivate Australia freshwater lobster fries, cultivating finless eel fries for 5-8 months, and cultivating crayfish fries for 9-12 months.
Further, the method for cultivating the eel shrimp fries comprises the following steps:
s1, building a culture pond: a plurality of cultivation ponds are built in the heat preservation shed, the depth of each cultivation pond is 0.5-0.8 m, and the area of each cultivation pond is 0.5-2 m2The water depth in each cultivation pool is 10-40 cm, and an electric heating device is installed in each cultivation pool;
s2, breeding parent stocking: a. feeding Australia crayfish parents into the culture pond in 1-4 months, keeping the water temperature in the culture pond at 20-28 ℃ through an electric heating device, and aerating the water body in the culture pond to enable the dissolved oxygen content in the water body in the culture pond to be larger than 4mg/L, wherein the feeding density of the Australia crayfish parents is 5-20 tails/m2The female-male ratio of the released Australia crayfish parents is 2: 1; b. planting aquatic plants in the cultivation pond in 5-8 months, then putting the finless eel parents, and dredgingThe water temperature in the cultivation pool is kept at 20-30 ℃ by the electric heating device, and the throwing density of the finless eel parent is 6-10/m2The male-female ratio of the released finless eel parent is 1: 1; c. feeding crayfish parents into the cultivation pool within 9-12 months, keeping the water temperature in the cultivation pool at 15-25 ℃ through an electric heating device, and aerating the water body in the cultivation pool to ensure that the content of dissolved oxygen in the water body in the cultivation pool is more than 2mg/L, wherein the feeding density of the crayfish parents is 25-50 tails/m2The male-female ratio of the thrown crayfish parents is 2-3: 1;
s3, feeding: a. feeding the Australia crayfish with feed once every afternoon after the Australia crayfish parents are bred, wherein the feeding amount is 3% -5% of the weight of the Australia crayfish each time; b. after breeding the finless eel parents, feeding the finless eel feed once every 2-3 days in the afternoon, wherein the feeding amount of each time is 2-5% of the weight of the finless eel; c. after the crayfish parents are put into the breeding field, feeding crayfish feed once every afternoon, wherein the feeding amount of each time is 2-5% of the weight of the crayfish;
s4, catching aquatic animals: a. separating the Australia crayfish fries when the Australia crayfish fries can move independently from the female crayfish, and transferring the crayfish fries to an outdoor pond to finish the cultivation of the Australia crayfish fries; b. after the ricefield eels lay eggs and hatch and emerge for 7 days, the fries are lifted, the fries and parents are separated, and then the ricefield eel fry cultivation is finished; c. when the crayfish fries leave the female crayfish and can move independently, the crayfish fries are separated, and the crayfish fries are transferred to an outdoor pond to finish crayfish cultivation.
Preferably, the cultivation pond constructed in the step S1 is one of a cement pond and a plastic film pond.
Preferably, in the step S2, before the Australian freshwater lobster parents are put into the breeding pond within 1-4 months, the water depth in the breeding pond is kept to be 20-40 cm, before the finless eel parents are put into the breeding pond within 5-8 months, the water depth in the breeding pond is kept to be 10-30 cm, and before the crayfish parents are put into the breeding pond within 9-12 months, the water depth in the breeding pond is kept to be 10-30 cm.
Preferably, in the step S2, the specification of the released Australian freshwater lobster parents is 5-10 tails/kg, the specification of the released finless eel parents is 5-20 tails/kg, and the specification of the released crayfish parents is 25-50 tails/kg.
Preferably, in the step S2, before the Australian crayfish parents are put into the cultivation pool for 1-4 months, 10-20 PVC pipes are placed in the cultivation pool, so that the Australian crayfish can inhabit conveniently.
Preferably, the length of the PVC pipe is 20-30 cm, and the inner diameter of the PVC pipe is 5-10 cm.
Preferably, in the step S2, the aquatic plants are one or more of water hyacinth and water lettuce, and the planting density of the aquatic plants is 10-20 plants/m2
Preferably, in the step S3, the australian crayfish feed comprises a special compound feed for australian crayfish and live bait, the eel feed comprises a special compound feed for eel and mixed bait, the content of trash fish paste in the mixed bait is 80 wt%, and the crayfish feed is a special compound feed for crayfish.
Preferably, in the step S3, feeding the Australia crayfish parents once every 16: 00-17: 00 afternoon after stocking; feeding the finless eel once every 2 to 3 days at 16:00 to 18:00 in the afternoon after stocking the finless eel parents; feeding the crayfish parents once every day at 16: 00-17: 00 in the afternoon after stocking.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention utilizes the breeding characteristics and the breeding seasons of different aquatic product varieties, and utilizes the same culture pond to breed the Australia crayfish, the finless eel and the crayfish all the year round, thereby fully utilizing the space resources in the culture pond and improving the comprehensive culture benefit.
2. The method has remarkable economic benefit, realizes multiple purposes in one pond by breeding the Australia freshwater lobsters, the finless eels and the crayfishes in the same breeding pond, and has the income per square meter of the breeding pond larger than 2000 yuan, which is more than 2 times of that in the prior art.
Detailed Description
The present invention will be further described with reference to specific embodiments in order to make the technical means, inventive features, objectives and effects of the invention easy to understand.
Examples
A method for cultivating eel shrimp fries comprises the following steps:
s1, building a culture pond: a plurality of cultivation ponds are built in the heat preservation shed, the depth of each cultivation pond is 0.5m, and the area of each cultivation pond is 1m2Each cultivation pool is internally provided with an electric heating device;
wherein the electric heating device is one of an electric heating wire and a heater;
wherein, the culture pond can be a cement pond or a plastic film pond.
S2, breeding parent stocking:
a. putting Australia freshwater lobster parents into the cultivation pool in 1-4 months, keeping the water depth in the cultivation pool to be 30cm before putting the Australia freshwater lobster parents, keeping the water temperature in the cultivation pool to be 20-25 ℃ through an electric heating device, and aerating the water body in the cultivation pool after putting the Australia freshwater lobster parents, so that the content of dissolved oxygen in the water body in the cultivation pool is more than 4 mg/L;
wherein the feeding density of the Australia freshwater lobster parents is 6 tails/m2The female-male ratio of the released Australian crayfish parents is 2:1, and the specification of the released Australian crayfish parents is 8 tails/kg;
in addition, before the Australian crayfish parents are put into the culture pond in 1-4 months, 12 PVC pipes are required to be placed in the culture pond, so that the Australian crayfish can inhabit conveniently, and each PVC pipe is 20cm in length and 5cm in inner diameter.
b. Putting the finless eel parents into the cultivation pool within 5-8 months, planting water hyacinth before putting the finless eel parents, keeping the water depth in the cultivation pool to be 10-20 cm, and keeping the water temperature in the cultivation pool to be 20-30 ℃ through an electric heating device;
wherein the planting density of the water hyacinth is 20 plants/m2The throwing density of the finless eel parent is 10/m2The male-female ratio of the released finless eel parent is 1:1, and the specification of the released finless eel parent is 10/kg.
c. Putting crayfish parents into the cultivation pool in 9-12 months, keeping the water depth of the cultivation pool at 15cm before putting the crayfish parents, keeping the water temperature of the cultivation pool at 15-25 ℃ through an electric heating device, and aerating the water body in the cultivation pool after putting the crayfish parents, so that the dissolved oxygen content in the water body in the cultivation pool is more than 2 mg/L;
wherein the feeding density of the crayfish parents is 15 tails/m2The male-female ratio of the fed crayfish parents is 2:1, and the specification of the fed crayfish parents is 40 tails/kg.
S3, feeding:
a. feeding the Australia crayfish with feed once every 16:00 pm after the Australia crayfish parents are bred, wherein the feeding amount is 3% -5% of the weight of the Australia crayfish each time;
the Australia crayfish feed consists of a special compound feed for Australia crayfish and live baits.
b. After breeding of the finless eel parents, feeding the finless eel feed once every 2-3 days at 17:00 pm, wherein the feeding amount of each time is 2-5% of the weight of the finless eel;
wherein the finless eel feed consists of a special compound feed for finless eels and mixed bait, and the content of small trash fish paste in the mixed bait is 80 wt%.
c. Feeding the crayfish with the crayfish feed once every day at 16:00 pm after the crayfish parents are released, wherein the feeding amount of each time is 2-5% of the weight of the crayfish;
wherein the crayfish feed is a special compound feed for crayfish.
S4, catching aquatic animals:
a. separating the Australia crayfish fries when the Australia crayfish fries can move independently from the female crayfish, and transferring the crayfish fries to an outdoor pond to finish the cultivation of the Australia crayfish fries;
b. after the ricefield eels lay eggs and hatch and emerge for 7 days, the fries are lifted, the fries and parents are separated, and then the ricefield eel fry cultivation is finished;
c. when the crayfish fries leave the female crayfish and can move independently, the crayfish fries are separated, and the crayfish fries are transferred to an outdoor pond to finish crayfish cultivation.
According to the method for cultivating the eel fry, the characteristics of Australian freshwater lobster breeding in spring, eel breeding in summer and crayfish breeding in autumn are utilized, the Australian freshwater lobster, the finless eel and the crayfish are bred in the same cultivation pond all the year round, space resources in the cultivation pond are fully utilized, and comprehensive cultivation benefits are improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. A method for cultivating eel shrimp fries is characterized by comprising the following steps: in the same cultivation pond, heating the water body for 1-4 months to cultivate Australia freshwater lobster fries, cultivating finless eel fries for 5-8 months, and cultivating crayfish fries for 9-12 months.
2. The method for cultivating eel fry as set forth in claim 1, which comprises the following steps:
s1, building a culture pond: a plurality of cultivation ponds are built in the heat preservation shed, the depth of each cultivation pond is 0.5-0.8 m, and the area of each cultivation pond is 0.5-2 m2The water depth in each cultivation pool is 10-40 cm, and an electric heating device is installed in each cultivation pool;
s2, breeding parent stocking: a. feeding Australia crayfish parents into the culture pond in 1-4 months, keeping the water temperature in the culture pond at 20-28 ℃ through an electric heating device, and aerating the water body in the culture pond to enable the dissolved oxygen content in the water body in the culture pond to be larger than 4mg/L, wherein the feeding density of the Australia crayfish parents is 5-20 tails/m2The female-male ratio of the released Australia crayfish parents is 2: 1; b. planting aquatic plants in the cultivation pool in 5-8 months, then putting parent finless eel, keeping the water temperature in the cultivation pool at 20-30 ℃ through an electric heating device, and putting the parent finless eel at the density of 6-10/m2The male-female ratio of the released finless eel parent is 1: 1; c. 9-12 month-wise cultivationFeeding crayfish parents into the pond, keeping the water temperature in the cultivation pond at 15-25 ℃ through an electric heating device, and aerating the water body in the cultivation pond to ensure that the dissolved oxygen content in the water body in the cultivation pond is more than 2mg/L, wherein the feeding density of the crayfish parents is 25-50 tails/m2The male-female ratio of the thrown crayfish parents is 2-3: 1;
s3, feeding: a. feeding the Australia crayfish with feed once every afternoon after the Australia crayfish parents are bred, wherein the feeding amount is 3% -5% of the weight of the Australia crayfish each time; b. after breeding the finless eel parents, feeding the finless eel feed once every 2-3 days in the afternoon, wherein the feeding amount of each time is 2-5% of the weight of the finless eel; c. after the crayfish parents are put into the breeding field, feeding crayfish feed once every afternoon, wherein the feeding amount of each time is 2-5% of the weight of the crayfish;
s4, catching aquatic animals: a. separating the Australia crayfish fries when the Australia crayfish fries can move independently from the female crayfish, and transferring the crayfish fries to an outdoor pond to finish the cultivation of the Australia crayfish fries; b. after the ricefield eels lay eggs and hatch and emerge for 7 days, the fries are lifted, the fries and parents are separated, and then the ricefield eel fry cultivation is finished; c. when the crayfish fries leave the female crayfish and can move independently, the crayfish fries are separated, and the crayfish fries are transferred to an outdoor pond to finish crayfish cultivation.
3. The method for cultivating eel fry as set forth in claim 2, wherein the cultivating pond constructed in the step S1 is one of a cement pond and a plastic film pond.
4. The method for breeding young eels as claimed in claim 2, wherein in step S2, before feeding the Australian freshwater lobster parents into the breeding pond within 1-4 months, the water depth in the breeding pond is kept at 20-40 cm, before feeding the finless eels parents into the breeding pond within 5-8 months, the water depth in the breeding pond is kept at 10-30 cm, and before feeding the crayfish parents into the breeding pond within 9-12 months, the water depth in the breeding pond is kept at 10-30 cm.
5. The method for breeding eel fry as claimed in claim 2, wherein in step S2, the size of the released Australian crayfish parents is 5-10 tails/kg, the size of the released eel parents is 5-20 tails/kg, and the size of the released crayfish parents is 25-50 tails/kg.
6. The method for cultivating eel larvae as claimed in claim 2, wherein in step S2, before feeding Australian crayfish parents into the cultivation pond for 1-4 months, 10-20 PVC pipes are placed in the cultivation pond to facilitate the Australian crayfish inhabitation.
7. The method for cultivating eel fry as claimed in claim 6, wherein the PVC pipe has a length of 20-30 cm and an inner diameter of 5-10 cm.
8. The method for cultivating the young eel species as claimed in claim 2, wherein in the step S2, the aquatic plant is one or more of water hyacinth and water lettuce, and the planting density of the aquatic plant is 10-20 plants/m2
9. The method for breeding young species of eel as claimed in claim 2, wherein in step S3, the feed for Australian crayfish comprises a compound feed and live bait specially used for Australian crayfish, the feed for eel comprises a compound feed and a mixed bait, the content of trash fish pulp in the mixed bait is 80 wt%, and the feed for crayfish is a compound feed specially used for crayfish.
10. The method for breeding eel fry as claimed in claim 2, wherein in step S3, the Australian crayfish parents are fed once every day at 16: 00-17: 00 in the afternoon; feeding the finless eel once every 2 to 3 days at 16:00 to 18:00 in the afternoon after stocking the finless eel parents; feeding the crayfish parents once every day at 16: 00-17: 00 in the afternoon after stocking.
CN201910209341.2A 2019-03-19 2019-03-19 Method for cultivating eel fry Active CN111183923B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN107691316A (en) * 2017-10-12 2018-02-16 广西壮族自治区水产科学研究院 A kind of method of Australia freshwater lobster ecologic breeding
CN107873440A (en) * 2017-11-07 2018-04-06 上海市农业科学院 A kind of method that rice eel shrimp soft-shelled turtle makees altogether
JP2018143182A (en) * 2017-03-07 2018-09-20 国立大学法人 鹿児島大学 Eel rearing method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105454111A (en) * 2015-12-17 2016-04-06 安徽省农业科学院水产研究所 Finless eel self-reproducing, self-breeding and self-cultivating mode
JP2018143182A (en) * 2017-03-07 2018-09-20 国立大学法人 鹿児島大学 Eel rearing method
CN107691316A (en) * 2017-10-12 2018-02-16 广西壮族自治区水产科学研究院 A kind of method of Australia freshwater lobster ecologic breeding
CN107873440A (en) * 2017-11-07 2018-04-06 上海市农业科学院 A kind of method that rice eel shrimp soft-shelled turtle makees altogether

Non-Patent Citations (1)

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Title
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