CN103891658A - Natural breeding method of new species of Murray cods - Google Patents

Natural breeding method of new species of Murray cods Download PDF

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Publication number
CN103891658A
CN103891658A CN201410146971.7A CN201410146971A CN103891658A CN 103891658 A CN103891658 A CN 103891658A CN 201410146971 A CN201410146971 A CN 201410146971A CN 103891658 A CN103891658 A CN 103891658A
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pond
parent
parent population
murray
natural
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CN103891658B (en
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蔡星
周忠良
秦巍仑
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JIANGSU ZHONGYANG GROUP CO Ltd
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JIANGSU ZHONGYANG GROUP CO Ltd
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    • 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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Abstract

The invention relates to a natural breeding method of a new species of Murray cods. The Murray cods are a new species introduced to China from Australia. Since Australia is located at the Southern Hemisphere and is different from China in climate and season, a breeding condition similar to that in Australia in natural ecological climate and environment is created through the steps of heat-preservation parent Murray cod breeding pond building, parent Murray cod biological bait breeding, parent Murray cod nest arrangement, parent Murray cod breeding, water flow increasing for gonad development stimulation, spawning and zygote collecting, zygote hatching and Murray cod fry breeding to achieve natural breeding of the Murray cods in China.

Description

A kind of natural propagation method of new varieties dragon design spot
Technical field
The present invention relates to fish reproduction technical field, be specifically related to a kind of natural propagation method of new varieties dragon design spot.
Background technology
Dragon design spot originates in Mo Rui river, Australia, is Australia national treasure fish, and formal name used at school " Mo Ruixue " (Murraycod); belong to Perciformes , Sushi Percidae, dragon design spot meat quality of fish is tender; fine and smooth and pliable and tough, tasty mouthfeel, growth is fast; economic worth is high, introduces a fine variety fry 20 end of the centurys to China, and cultivation successfully seldom; the breeding of dragon design spot is the technical barrier of restriction dragon design spot large-scale cultivation; Jiangsu Zhong Yang group successfully captures breeding difficulty through making great efforts for many years, and dragon design spot can, at Chinese reproductive success, be filled the domestic gaps.
Summary of the invention
Goal of the invention: the object of the invention is a kind of natural propagation method for new varieties dragon design spot fish is provided, dragon design spot originates in Australia, introduces a fine variety China, and weather, ecotope difference, affect growing of dragon design spot.The invention provides dragon design spot and be applicable to the new weather of China, ecotope, the natural propagation method of growing.
Technical scheme: the technical scheme that technical solution problem of the present invention is taked is: a kind of natural propagation method of new varieties dragon design spot, comprises the following steps:
1. build insulation parent fish rearing pond
Pond, shale, area 8 × 10 ㎡, dark 2.5m, has double layer hollow plastic tunnel on pond, frame height 2.5-3.5m, natural lighting abundance, temperature keeps more than 15 DEG C.
2. cultivate parent population biological feed
Rich water is carried out with dregs of beans in parent fish rearing pond, cultivates aquatile, as algae, wheel animalcule, cladocera, is hung in water with technology for woven plastic packing rear overhang by dregs of beans, and every pond 30kg throws in freshwater shrimp, silver carp seed, Odontobutis obscura simultaneously, builds biological feed food chain.
3. parent population fish nest is set
Select grey dark-coloured pvc pipe material, parent population fish nest physical dimension as shown in Figure 1, diameter 500mm, length 1200mm, wall thickness 5mm, the each two stands of installing in fish nest two ends belows, the long 250mm of support, wide 50mm, evenly safe being placed in bottom pond, 7~11, every pond.
4. cultivate parent population
Annual late November select 5~6 age body weight 7~10kg/ tail, physical health, react quick parent population 3-6 couple, put parent fish rearing pond in a suitable place to breed.Parent fish rearing pond temperature remains on more than 15 DEG C, and dissolved oxygen keeps 7~9mg/L.Parent population is put rear every day of increasing of fixed place and time in a suitable place to breed and throws beef liver, vitamin, trace mineral element.Beef liver feeding volume every day is the 2-3% of parent population body weight.Vitamin, trace mineral element, make heavy property particulate material and beef liver and throw something and feed simultaneously.
5. increase current and stimulate gonad development
A jet aerator, power 3.5kw are installed in each parent fish rearing pond.Late November to next year by the end of March, flow rate of water flow 0.3~0.5m/s.At the beginning of 4 months~and the first tenday period of a month in May, regulate jet aerator power, flow rate of water flow 0.6~0.8m/s, utilizes current to stimulate parent population gonad development, oestrus, lay eggs.
6. lay eggs and collect fertilized egg
In the first tenday period of a month in May, in the time that water temperature rises to more than 20 DEG C, under sunlight, current stimulate, the parent population of gonadal maturation looks for even pairing, and the natural spawning of oestrusing is guaranteed fertilization time 4~5 hours, and in parent fish rearing pond, the water flows gently locates, and collects fertilized egg with bucket.
7. incubating oosperm
To collect fertilized egg and put into hatching pail and hatch, incubation temperature is controlled at 20~24 DEG C, PH7.5~8.5.
8. prelarva is cultivated
After fertilization and hatching, prelarva hatches the yolk of throwing something and feeding after 2~3 days, proceeds to fry rearing pond after 5~7 days, and bait is biological live bait, as wheel animalcule, cladocera etc.
As preferably, step 4. in, parent population selected for 6 ages, body weight 8-10kg/ tail, 3-4 couple is put in every pond in a suitable place to breed.
As preferably, step 7. in, 21 DEG C-22 DEG C of incubation temperature controls.
Beneficial effect: the natural propagation method of a kind of new varieties dragon design spot of the present invention, creates a kind of natural propagation method of dragon design spot, for large-scale cultivation provides a large amount of seeds in China.
Brief description of the drawings
Fig. 1 is parent population fish nest structural representation of the present invention.
Embodiment
Below in conjunction with concrete case study on implementation, the present invention will be described in detail.
Embodiment 1:
A natural propagation method for new varieties dragon design spot, comprises the following steps:
1. build insulation parent fish rearing pond
Pond, shale, area 8 × 10 ㎡, dark 2.5m, has double layer hollow plastic tunnel on pond, frame height 2.5m, natural lighting abundance, temperature keeps more than 15 DEG C.
2. cultivate parent population cultivate water and biological feed
Rich water is carried out with dregs of beans in parent fish rearing pond, cultivates aquatile, and algae, wheel animalcule, cladocera, be hung in water with technology for woven plastic packing rear overhang by dregs of beans, and every pond 30kg throws in freshwater shrimp, silver carp seed, Odontobutis obscura simultaneously, builds biological feed food chain.
3. parent population fish nest is set
Select grey dark-coloured pvc pipe material, parent population fish nest physical dimension as shown in Figure 1, diameter 500mm, length 1200mm, wall thickness 5mm, the each two stands of installing in fish nest two ends belows, the long 250mm of support, wide 50mm, evenly safe being placed in bottom pond, 7~11, every pond.
4. cultivate parent population
Annual late November select 5 age body weight 7-8kg/ tail, physical health, react quick parent population, put parent fish rearing pond in a suitable place to breed, 5, every pond raun, 6 milters.Parent fish rearing pond temperature remains on more than 15 DEG C, and dissolved oxygen keeps 7~9mg/L.Parent population is put rear every day of increasing of fixed place and time in a suitable place to breed and throws beef liver, vitamin, trace mineral element.Beef liver feeding volume every day is the 2-3% of parent population body weight.Vitamin, trace mineral element, make heavy property particulate material and beef liver and throw something and feed simultaneously.
5. increase current and stimulate gonad development
A jet aerator, power 3.5kw are installed in each parent fish rearing pond.Late November to next year by the end of March, flow rate of water flow 0.3m/s.At the beginning of 4 months~and the first tenday period of a month in May, regulate jet aerator power, flow rate of water flow 0.6m/s, utilizes current to stimulate parent population gonad development, oestrus, lay eggs.
6. lay eggs and collect fertilized egg
In the first tenday period of a month in May, in the time that water temperature rises to more than 20 DEG C, under sunlight, current stimulate, the parent population of gonadal maturation looks for even pairing, and the natural spawning of oestrusing is guaranteed fertilization time 4 hours, and in parent fish rearing pond, the water flows gently locates, and collects fertilized egg with bucket.
7. incubating oosperm
To collect fertilized egg and put into hatching pail and hatch, incubation temperature is controlled at 20 DEG C, and PH is 7.5.
8. prelarva is cultivated
After fertilization and hatching, prelarva hatches the yolk of throwing something and feeding after 2 days, proceeds to fry rearing pond after 5 days, and bait is biological live bait, as wheel animalcule, cladocera etc.
Embodiment 2: a kind of natural propagation method of new varieties dragon design spot, is characterized in that comprising the following steps:
1. build insulation parent fish rearing pond
Pond, shale, area 8 × 10 ㎡, dark 2.5m, has double layer hollow plastic tunnel on pond, frame height 3.5m, natural lighting abundance, temperature keeps more than 15 DEG C.
2. cultivate parent population biological feed
Rich water is carried out with dregs of beans in parent fish rearing pond, cultivates aquatile, and algae, wheel animalcule, cladocera, be hung in water with technology for woven plastic packing rear overhang by dregs of beans, and every pond 30kg throws in freshwater shrimp, silver carp seed, Odontobutis obscura simultaneously, builds biological feed food chain.
3. parent population fish nest is set
Select grey dark-coloured pvc pipe material, parent population fish nest physical dimension as shown in Figure 1, diameter 500mm, length 1200mm, wall thickness 5mm, the each two stands of installing in fish nest two ends belows, the long 260mm of support, wide 50mm, evenly safe being placed in bottom pond, 7, every pond.
4. cultivate parent population
Annual late November select 6 age body weight 8-10kg/ tail, physical health, react quick parent population, put parent fish rearing pond in a suitable place to breed, 3, every pond raun, 4 milters.Parent fish rearing pond temperature remains on more than 15 DEG C, and dissolved oxygen keeps 7~9mg/L.Parent population is put rear every day of increasing of fixed place and time in a suitable place to breed and throws beef liver, vitamin, trace mineral element.Beef liver feeding volume every day is the 2-3% of parent population body weight.Vitamin, trace mineral element, make heavy property particulate material and beef liver and throw something and feed simultaneously.
5. increase current and stimulate gonad development
A jet aerator, power 3.5w are installed in each parent fish rearing pond.Late November to next year by the end of March, flow rate of water flow 0.5m/s.At the beginning of 4 months~and the first tenday period of a month in May, regulate jet aerator power, flow rate of water flow 0.8m/s, utilizes current to stimulate parent population gonad development, oestrus, lay eggs.
6. lay eggs and collect fertilized egg
In the first tenday period of a month in May, in the time that water temperature rises to more than 20 DEG C, under sunlight, current stimulate, the parent population of gonadal maturation looks for even pairing, and the natural spawning of oestrusing is guaranteed fertilization time 5 hours, and in parent fish rearing pond, the water flows gently locates, and collects fertilized egg with bucket.
7. incubating oosperm
To collect fertilized egg and put into hatching pail and hatch, incubation temperature is controlled at 24 DEG C, and PH is 8.5.
8. prelarva is cultivated
After fertilization and hatching, prelarva hatches the yolk of throwing something and feeding after 3 days, proceeds to fry rearing pond after 7 days, and bait is biological live bait, as wheel animalcule, cladocera etc.
Embodiment 3: a kind of natural propagation method of new varieties dragon design spot, is characterized in that comprising the following steps:
1. build insulation parent fish rearing pond
Pond, shale, area 8 × 10 ㎡, dark 2.5m, has double layer hollow plastic tunnel on pond, frame height 3m, natural lighting abundance, temperature keeps more than 15 DEG C.
2. cultivate parent population biological feed
Rich water is carried out with dregs of beans in parent fish rearing pond, cultivates aquatile, and algae, wheel animalcule, cladocera, be hung in water with technology for woven plastic packing rear overhang by dregs of beans, and every pond 30kg throws in freshwater shrimp, silver carp seed, Odontobutis obscura simultaneously, builds biological feed food chain.
3. parent population fish nest is set
Select grey dark-coloured pvc pipe material, parent population fish nest physical dimension as shown in Figure 1, diameter 500mm, length 1200mm, wall thickness 5mm, the each two stands of installing in fish nest two ends belows, the long 250mm of support, wide 50mm, evenly safe being placed in bottom pond, 11, every pond.
4. cultivate parent population
Annual late November select 5 age body weight 7-8kg/ tail, physical health, react quick parent population, put parent fish rearing pond in a suitable place to breed, 5, every pond raun, 6 milters.Parent fish rearing pond temperature remains on more than 15 DEG C, and dissolved oxygen keeps 7~9mg/L.Parent population is put rear every day of increasing of fixed place and time in a suitable place to breed and throws beef liver, vitamin, trace mineral element.Beef liver feeding volume every day is the 3-5% of parent population body weight.Vitamin, trace mineral element, make heavy property particulate material and beef liver and throw something and feed simultaneously.
5. increase current and stimulate gonad development
A jet aerator, power 3.5kw are installed in each parent fish rearing pond.Late November to next year by the end of March, flow rate of water flow 0.4m/s.At the beginning of 4 months~and the first tenday period of a month in May, regulate jet aerator power, flow rate of water flow 0.7m/s, utilizes current to stimulate parent population gonad development, oestrus, lay eggs.
6. lay eggs and collect fertilized egg
In the first tenday period of a month in May, in the time that water temperature rises to more than 20 DEG C, under sunlight, current stimulate, the parent population of gonadal maturation looks for even pairing, and the natural spawning of oestrusing is guaranteed fertilization time 4.5 hours, and in parent fish rearing pond, the water flows gently locates, and collects fertilized egg with bucket.
7. incubating oosperm
To collect fertilized egg and put into hatching pail and hatch, incubation temperature is controlled at 22 DEG C, and PH is 8.
8. prelarva is cultivated
After fertilization and hatching, prelarva hatches the yolk of throwing something and feeding after 2.5 days, proceeds to fry rearing pond after 6 days, and bait is biological live bait, as wheel animalcule, cladocera etc.

Claims (3)

1. a natural propagation method for new varieties dragon design spot, is characterized in that: comprise the following steps:
1. build insulation parent fish rearing pond:
Pond, shale, area 8 × 10 ㎡, dark 2.5m, has double layer hollow plastic tunnel on pond, frame height 2.5-3.5m, natural lighting abundance, temperature keeps more than 15 DEG C;
2. cultivate parent population biological feed:
Rich water is carried out with dregs of beans in parent fish rearing pond, cultivates aquatile: algae, wheel animalcule, cladocera, dregs of beans is hung in water with technology for woven plastic packing rear overhang, and every pond 30kg throws in freshwater shrimp, silver carp seed, Odontobutis obscura simultaneously, builds biological feed food chain;
3. parent population fish nest is set:
Select grey dark-coloured pvc pipe material, parent population fish nest physical dimension: diameter 500mm, length 1200mm, wall thickness 5mm, the each two stands of installing in below, fish nest two ends, the long 300mm of support, wide 50mm, evenly safe bottom, pond, 7~11, the every pond of being placed in;
4. cultivate parent population:
Annual late November select 5~6 age body weight 7~10kg/ tail, physical health, react quick parent population 3-6 couple, put parent fish rearing pond in a suitable place to breed; Parent fish rearing pond temperature remains on more than 15 DEG C, and dissolved oxygen keeps 7~9mg/L; Parent population is put rear every day of increasing of fixed place and time in a suitable place to breed and throws beef liver, vitamin, trace mineral element; Beef liver feeding volume every day is the 2-3% of parent population body weight; Vitamin, trace mineral element, make heavy property particulate material and beef liver and throw something and feed simultaneously;
5. increase current and stimulate gonad development:
A jet aerator is installed in each parent fish rearing pond, and power 3.5kw can form the current of 0.3~0.8m/s; Late November to next year by the end of March, flow rate of water flow 0.3~0.5m/s; At the beginning of 4 months~and the first tenday period of a month in May, regulate jet aerator power, flow rate of water flow 0.6~0.8m/s, utilizes current to stimulate parent population gonad development, oestrus, lay eggs;
6. lay eggs and collect fertilized egg:
In the first tenday period of a month in May, in the time that water temperature rises to more than 20 DEG C, under sunlight, current stimulate, the parent population of gonadal maturation looks for even pairing, and the natural spawning of oestrusing is guaranteed fertilization time 4~5 hours, and in parent fish rearing pond, the water flows gently locates, and collects fertilized egg with bucket;
7. incubating oosperm:
To collect fertilized egg and put into hatching pail and hatch, incubation temperature is controlled at 20~24 DEG C, PH7.5~8.5;
8. prelarva is cultivated:
After fertilization and hatching, prelarva hatches the yolk of throwing something and feeding after 2~3 days, proceeds to fry rearing pond after 5~7 days, and bait is biological live bait.
2. the natural propagation method of new varieties dragon design spot as claimed in claim 1, is characterized in that: step 4. in, parent population selected for 6 ages, body weight 8-10kg/ tail, 3-4 couple is put in every pond in a suitable place to breed.
3. the natural propagation method of new varieties dragon design spot as claimed in claim 1, is characterized in that: step 7. in, 21 DEG C-22 DEG C of incubation temperature controls.
CN201410146971.7A 2014-04-14 2014-04-14 A kind of natural propagation method of dragon design spot Active CN103891658B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105706971A (en) * 2016-02-19 2016-06-29 福建省农业科学院中心实验室 Culture method of Australian dragon spot fish fry
CN109122449A (en) * 2017-06-19 2019-01-04 乔惠文 A kind of swamp eel fish nest setting

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1915007A (en) * 2006-09-12 2007-02-21 河北农业大学 Production method for summer offspring of Songjiang blue pickerel
CN101081010A (en) * 2007-07-11 2007-12-05 中国水产科学研究院珠江水产研究所 Scale breeding method of jade perch
CN102318576A (en) * 2011-08-29 2012-01-18 山东裕海渔业良种有限公司 The omnidistance seawater mating system of Sungkiang weever

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1915007A (en) * 2006-09-12 2007-02-21 河北农业大学 Production method for summer offspring of Songjiang blue pickerel
CN101081010A (en) * 2007-07-11 2007-12-05 中国水产科学研究院珠江水产研究所 Scale breeding method of jade perch
CN102318576A (en) * 2011-08-29 2012-01-18 山东裕海渔业良种有限公司 The omnidistance seawater mating system of Sungkiang weever

Non-Patent Citations (4)

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Title
PAUL HUMPHRIES: "Spawning time and early life history of Murray cod, Maccullochella peelii(Mitchell) in an Australian river", 《ENVIRONMENTAL BIOLOGY OF FISHES》 *
杨小玉等: "澳洲龙纹斑工厂化养殖技术", 《水产养殖》 *
郭松等: "澳洲鳕鲈的生物学特征及人工繁养技术", 《江苏农业科学》 *
韩茂森: "澳洲虫纹鳕鲈的生物学特性及引养前景", 《淡水渔业》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105706971A (en) * 2016-02-19 2016-06-29 福建省农业科学院中心实验室 Culture method of Australian dragon spot fish fry
CN105706971B (en) * 2016-02-19 2018-09-04 福建省农业科学院中心实验室 The cultural method of Australia dragon design spot fry
CN109122449A (en) * 2017-06-19 2019-01-04 乔惠文 A kind of swamp eel fish nest setting

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