CN105360030A - Earth pond artificial propagation and breeding integrated technology for crayfishes - Google Patents
Earth pond artificial propagation and breeding integrated technology for crayfishes Download PDFInfo
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- CN105360030A CN105360030A CN201510815325.XA CN201510815325A CN105360030A CN 105360030 A CN105360030 A CN 105360030A CN 201510815325 A CN201510815325 A CN 201510815325A CN 105360030 A CN105360030 A CN 105360030A
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- 230000001488 breeding effect Effects 0.000 title claims abstract description 33
- 238000005516 engineering process Methods 0.000 title claims abstract description 17
- 241000238017 Astacoidea Species 0.000 title abstract description 19
- 230000000366 juvenile effect Effects 0.000 claims abstract description 34
- 239000003337 fertilizer Substances 0.000 claims abstract description 10
- 230000012447 hatching Effects 0.000 claims abstract description 7
- 241000238557 Decapoda Species 0.000 claims description 126
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 66
- 241000251468 Actinopterygii Species 0.000 claims description 15
- 244000025254 Cannabis sativa Species 0.000 claims description 15
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- 235000013601 eggs Nutrition 0.000 claims description 12
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- 230000003203 everyday effect Effects 0.000 claims description 9
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- 235000013372 meat Nutrition 0.000 claims description 6
- 235000020638 mussel Nutrition 0.000 claims description 6
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- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 claims description 3
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- 238000005276 aerator Methods 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000007844 bleaching agent Substances 0.000 claims description 3
- 239000011449 brick Substances 0.000 claims description 3
- 241001233061 earthworms Species 0.000 claims description 3
- 230000026109 gonad development Effects 0.000 claims description 3
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Classifications
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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
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/003—Aquaria; Terraria
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses an earth pond artificial propagation and breeding integrated technology for crayfishes. The earth pond artificial propagation and breeding integrated technology is characterized in that propagation and breeding are carried out in the same pond, so that both two seasons of juvenile crayfishes and two seasons of adult crayfishes can be harvested in one pond, and therefore, two seasons of juvenile crayfishes and one season of adult crayfishes are additionally harvested in comparison with crayfishes harvested by using a conventional pond breeding mode of crayfishes. According to the technical scheme adopted by the invention, the earth pond artificial propagation and breeding integrated technology for crayfishes comprises the following steps: (I) creating and modifying pond conditions; (II) preparing the pond; (III) feeding parent crayfishes; (IV) feeding the crayfishes and applying fertilizer; (V) enabling spawning, hatching and larva growing; (VI) carrying out breeding management; (VII) cultivating juvenile crayfishes; (VIII) breeding adult crayfishes; and (IX) catching adult crayfishes. Compared with the conventional pond breeding mode of crayfishes, the earth pond artificial propagation and breeding integrated technology provided by the invention has the beneficial effects that the artificial crayfish propagation is added, so that the quality and quantity of larvae bred in the pond are guaranteed; crayfish finished products come into market in advance; and the yield is increased. Thus, the economic benefits are improved.
Description
Technical field
Patent of the present invention relates to cray artificial propagation and healthy aquaculture field, belongs to cultural technique category.
Background technology
According to the knowledge of the applicant, the artificial propagation of cray industry and cultivation separate, particularly single in native pond
Pure cultivates, does not do artificial propagation.Artificial propagation techniques in the past also just carries out in cement pit, and Tu Chi just gives free rein to breed seed, and culturist relies on the seed shrimp natural propagation of retaining in pond, and as the seed cultivating into shrimp, within 1 year, only results one season becomes shrimp.Owing to being the seed shrimp natural propagation of retaining, the quantity of shrimp seedling and quality are all uncontrollable, and seedling-growing time is late and very asynchronous, and therefore shrimp seedling specification is uneven, and fry quality is poor.So often cause the seed of pond culture deficiency, yield poorly; Fry quality is bad, and growth rate is slow; Seedling-growing time is late, and vegetative period shortens, and causes individual specification less than normal; These all cause the economic benefit of pond culture low.The solution that this situation has never had.
Summary of the invention
Cray soil pond artificial breeding, breeding integrated technology are for the artificial propagation of current cray industry and cultivation, and culturist relies on the seed shrimp natural propagation of retaining in pond, and as the seed cultivating into shrimp, within 1 year, only results one season becomes shrimp.Owing to being the seed shrimp natural propagation of retaining, the quantity of shrimp seedling and quality are all uncontrollable, and seedling-growing time is late and very asynchronous, and therefore shrimp seedling specification is uneven, and fry quality is poor.Cause the seed of pond culture deficiency, yield poorly; Fry quality is bad, and growth rate is slow; Seedling-growing time is late, and vegetative period shortens, and individual specification is less than normal, causes the problem that the economic benefit of pond culture is low.The object of the invention is open a kind of cray soil pond artificial breeding, breeding integrated technology.
Cray soil pond of the present invention artificial breeding, breeding integrated technology, be characterized in namely breeding in same pond, cultivate again, make a bite pond can gather in the crops two season juvenile prawn, can gather in the crops again two seasons become shrimp, than traditional " shrimp is supported in pond " receive more two season juvenile prawn, one season become shrimp.
The technical scheme that cray soil pond of the present invention artificial breeding, breeding integrated technology adopt is as follows:
(1) pond condition and transformation
Tu Chi with rectangle as well, do not limit by area, is advisable for 2 ~ 5 mu.The pond degree of depth 2.5 ~ 3 meters, the ridge, the pond gradient is good with 2.5 ~ 3:1.Face width >=3 meter, the ridge, pond, surface, the ridge, pond surrounding has first by pond prevents escaping net.
Tu Chi has independently culvert system, the low row of high filling; Inlet channel is positioned at surface, the ridge, pond, and the centre of pond, major axis one end, pond minor face, each water inlet pipe has Valve controlling to intake.Drainpipe is positioned at the drainage gate of the other end on water inlet opposite, pond, pond bottom lowest part, double-tube structure, interior pipe controlling water level, and outer tube controls water (flow) direction; Drainage gate is brick mix structure, and specification is generally 1200X800X3000mm, and the water of crossing of the useful 40 mesh sieve thin,tough silk making of each drainage gate is prevented escaping gate.
(2) pond prepares
1, clean up the pond: mid-July drains Chi Shui, clean up the pond with bleaching powder, eliminate harmful animal and wild fishes.Slowly can add water after 6 hours, intake, in case harmful animal enters by the filter screen filtration of 60 mesh sieve thin,tough silk when adding water.
2, plant grass: the submerged plants such as pond bottom plantation eel grass, hydrilla verticillata, water caltrop, waterweed, the cultivated area of submerged plant accounts for 1/2 of pond bottom; The fluitantes such as pond surface transplantation weter hyacinth, method surrounds the water surface of 2 ~ 3 meters wide, throws in more weter hyacinth, forms fluitante district.
3, sunshade: be fixedly installed sunshade crape with meshy steel wire above pond, play the effect of cooling and shading, intensity of illumination < 300Lux is advisable.
(3) close shrimp is thrown in
Annual 7 ~ August throws in close shrimp, throws in 80 ~ 100 kilograms, throws in the standard of close shrimp for every mu:
cabrage 35-50 gram;
color is dark red or dark red, glossy;
appendage is complete, active, healthy;
female and male ratio 3:1.
(4) throw something and feed and apply fertilizer
After parent shrimp is thrown in, a bait of throwing something and feeding at dusk every day, kind of throwing something and feeding is based on spiral shell freshwater mussel meat, water earthworm and white shrimp parent shrimp material, and feeding volume is to deposit 2% ~ 4% of shrimp gross weight.Parent shrimp can be applied fertilizer to pond after throwing in, and apply fertilizer the general available farmyard manure, green grass etc. fermented, and under the prerequisite ensureing condition of water quality, repeatedly throws on a small quantity and executes.
(5) lay eggs, hatch and emerge
8 ~ October, the close shrimp thrown in digs a hole, mating, to lay eggs in pond, fertilized egg sticks to female shrimp belly, through hatching in about 20 ~ 30 days, young membrane continues to stick to female shrimp belly, more abnormal through 2 shellings, becomes juvenile prawn, leave parent and complete oogenesis hatching process, so far whole reproductive process completes.
(6) management is bred
1, the technical measures induction cray synchronous spawning of " controlled light, control temperature, controlling water level, control water quality, reinforcement are thrown something and fed " five in one is adopted." controlled light " is the double action utilizing sunshade crape and fluitante-weter hyacinth, and controlled light intensity is lower than 300Lux; " control temperature " utilizes the double action shading of sunshade crape and fluitante-weter hyacinth to increase the moon, thus also play the effect of cooling, and recycling bath in evening reaches the effect of stable cooling; " controlling water level " utilizes the double-jacket tube of drainage system in 10 days by low for pond water potential drop about 50 ~ 100cm, plays and slowly stably reduce pond water level effect, impels cray to dig a hole to enter in cavern to lay eggs; " control water quality " utilizes bath in evening and aerator to control water quality, guarantees pond waters dissolved oxygen >=5mg/L; " reinforcement is thrown something and fed " focuses on throw something and feed spiral shell freshwater mussel meat, water earthworm and white shrimp parent shrimp material during close shrimp breeds, and has additional nutrients, impel close shrimp gonad development.
2, every day, the pool was patrolled in timing, observed close shrimp and bred situation and carry out data logging.
3, shrimp seedling is fished for.To be seen to when having a large amount of shrimp seedling independent activities, namely available netting gear is by about 1cm, and the shrimp seedling of body colour blackening is fished for sale or moved foster.Fished for once every 3 ~ 5 days, 10 ~ 120,000 tail shrimp seedlings can be fished in every mu of pond, and remainder about has 3 ~ 50,000 tail shrimp seedlings to stay pond as cultivation seed, enters the juvenile shrimp cultivation stage.
(7) juvenile shrimp cultivation
10 ~ March is the juvenile shrimp cultivation stage, and when water temperature is higher than 12 DEG C, can suitably throw something and feed some fishes gruel or water earthworms, also can suitably throw the farmyard manure executed some green grass He fermented.The things concealeds such as more nest, mesh sheet can be placed in pond, hide for juvenile prawn, to improve survival rate.As in pond, juvenile prawn density is too high, the juvenile prawn that can continue to fish for part 3cm in March is sold or moves foster.
(8) shrimp aquaculture is become
After March, water temperature continues to rise, and enter into the shrimp aquaculture stage, this stage will be strengthened throwing something and feeding, and notes throwing grass and protecting grass.Every day throws something and feeds 1 time at dusk, and feeding volume is deposit shrimp total amount 4% ~ 8%, timing adding water and oxygenation.May is every mu of each input 500 decorative pattern at the end of a poem, article, etc. where there is a small blank space silver carps cun sheet fry and 2000 tail loach cun sheet fry in pond, carries out Fish-shrimp mix-culture, increases economic efficiency further.
(9) shrimp is become to fish for
Start pond cage shrimping from early April, catch and put greatly little, fished for once every 5 ~ 7 days, be continued until by the end of July.Generally shrimp 250 ~ 300 kilograms can be fished in every mu of pond, famous-brand and high-quality fish 200 kilograms.
Cray soil pond artificial breeding, breeding integrated technology are combined at the breeding of cray and cultivation, formed a bite pond gather in the crops every year two season juvenile prawn, two seasons became shrimp, than traditional " shrimp is supported in pond " receive more two season juvenile prawn, a season become shrimp.Can per mu yield larva of crayfish 10 ~ 120,000 tail, large gauge juvenile prawn 25 ~ 50 kilograms, become shrimp 250 ~ 300 kilograms, every per mu yield value reaches 16000 ~ 18000 yuan, and every mu of net profit is at 6000 ~ 8000 yuan.The enforcement of this technology not only significantly improves output and the economic benefit of unit are, also can be the cray seed that society provides a large amount of simultaneously, effectively promotes the development of cray aquaculture.
The invention has the beneficial effects as follows:
Cray pond artificial breeding, breeding integrated technology are supported shrimp pattern than traditional pond and are added cray artificial breeding part, ensure that fry quality and the quantity of pond culture, do sth. in advance cray finished product Time To Market, improve output, thus improve economic benefit.
Namely cray pond artificial breeding, breeding integrated technology breed in same pond, cultivate again, make a bite pond can gather in the crops two season juvenile prawn, can gather in the crops again two seasons become shrimp, than traditional " shrimp is supported in pond " receive more two season juvenile prawn, one season become shrimp.Can per mu yield larva of crayfish 10 ~ 120,000 tail, large gauge juvenile prawn 25 ~ 50 kilograms, become shrimp 250 ~ 300kg, every per mu yield value reaches 16000 ~ 18000 yuan, and every mu of net profit is at 6000 ~ 8000 yuan.Form multiple product, given full play to the production capacity in pond, substantially increased the economic benefit of pond unit are.Also can be the cray seed that society provides a large amount of simultaneously, effectively promote the development of cray aquaculture.
Embodiment
The technical scheme that cray soil pond artificial breeding, breeding integrated technology adopt is as follows:
(1) pond condition and transformation
Tu Chi with rectangle as well, do not limit by area, is advisable for 2 ~ 5 mu.The pond degree of depth 2.5 ~ 3 meters, the ridge, the pond gradient is good with 2.5 ~ 3:1.Face width >=3 meter, the ridge, pond, surface, the ridge, pond surrounding has first by pond prevents escaping net.
Tu Chi has independently culvert system, the low row of high filling; Inlet channel is positioned at surface, the ridge, pond, and the centre of pond, major axis one end, pond minor face, each water inlet pipe has Valve controlling to intake.Drainpipe is positioned at the drainage gate of the other end on water inlet opposite, pond, pond bottom lowest part, double-tube structure, interior pipe controlling water level, and outer tube controls water (flow) direction; Drainage gate is brick mix structure, and specification is generally 1200X800X3000mm, and the water of crossing of the useful 40 mesh sieve thin,tough silk making of each drainage gate is prevented escaping gate.
(2) pond prepares
1, clean up the pond: mid-July drains Chi Shui, clean up the pond with bleaching powder, eliminate harmful animal and wild fishes.Slowly can add water after 4 hours, intake, in case harmful animal enters by the filter screen filtration of 60 mesh sieve thin,tough silk when adding water.
2, plant grass: the submerged plants such as pond bottom plantation eel grass, hydrilla verticillata, water caltrop, waterweed, the cultivated area of submerged plant accounts for 1/2 of pond bottom; The fluitantes such as pond surface transplantation weter hyacinth, method surrounds the water surface of 2 ~ 3 meters wide, throws in more weter hyacinth, forms fluitante district.
3, sunshade: be fixedly installed sunshade crape with meshy steel wire above pond, play the effect of cooling and shading, intensity of illumination < 300Lux is advisable.
(3) close shrimp is thrown in
Annual 7 ~ August throws in close shrimp, throws in 80 ~ 100 kilograms, throws in the standard of close shrimp for every mu:
cabrage 35-50 gram;
color is dark red or dark red, glossy;
appendage is complete, active, healthy;
female and male ratio 3:1.
(4) throw something and feed and apply fertilizer
After parent shrimp is thrown in, a bait of throwing something and feeding at dusk every day, kind of throwing something and feeding is based on spiral shell freshwater mussel meat, water earthworm and white shrimp parent shrimp material, and feeding volume is to deposit 2% ~ 4% of shrimp gross weight.Parent shrimp can be applied fertilizer to pond after throwing in, and apply fertilizer the general available farmyard manure, green grass etc. fermented, and under the prerequisite ensureing condition of water quality, repeatedly throws on a small quantity and executes.
(5) lay eggs, hatch and emerge
8 ~ October, the close shrimp thrown in digs a hole, mating, to lay eggs in pond, fertilized egg sticks to female shrimp belly, through hatching in about 20 ~ 30 days, young membrane continues to stick to female shrimp belly, more abnormal through 2 shellings, becomes juvenile prawn, leave parent and complete oogenesis hatching process, so far whole reproductive process completes.
(6) management is bred
1, the technical measures induction cray synchronous spawning of " controlled light, control temperature, controlling water level, control water quality, reinforcement are thrown something and fed " five in one is adopted." controlled light " is the double action utilizing sunshade crape and fluitante-weter hyacinth, and controlled light intensity is lower than 300Lux; " control temperature " utilizes the double action shading of sunshade crape and fluitante-weter hyacinth to increase the moon, thus also play the effect of cooling, and recycling bath in evening reaches the effect of stable cooling; " controlling water level " utilizes the double-jacket tube of drainage system in 10 days by low for pond water potential drop about 50 ~ 100cm, plays and slowly stably reduce pond water level effect, impels cray to dig a hole to enter in cavern to lay eggs; " control water quality " utilizes bath in evening and aerator to control water quality, guarantees pond waters dissolved oxygen >=5mg/L; " reinforcement is thrown something and fed " focuses on throw something and feed spiral shell freshwater mussel meat, water earthworm and white shrimp parent shrimp material during close shrimp breeds, and has additional nutrients, impel close shrimp gonad development.
2, every day, the pool was patrolled in timing, observed close shrimp and bred situation and carry out data logging.
3, shrimp seedling is fished for.To be seen to when having a large amount of shrimp seedling independent activities, namely available netting gear is by about 1cm, and the shrimp seedling of body colour blackening is fished for sale or moved foster.Fished for once every 3 ~ 5 days, 10 ~ 120,000 tail shrimp seedlings can be fished in every mu of pond, and remainder about has 3 ~ 50,000 tail shrimp seedlings to stay pond as cultivation seed, enters the juvenile shrimp cultivation stage.
(7) juvenile shrimp cultivation
10 ~ March is the juvenile shrimp cultivation stage, and when water temperature is higher than 12 DEG C, can suitably throw something and feed some fishes gruel or water earthworms, also can suitably throw the farmyard manure executed some green grass He fermented.The things concealeds such as more nest, mesh sheet can be placed in pond, hide for juvenile prawn, to improve survival rate.As in pond, juvenile prawn density is too high, the juvenile prawn that can continue to fish for part 3cm in March is sold or moves foster.
(8) shrimp aquaculture is become
After March, water temperature continues to rise, and enter into the shrimp aquaculture stage, this stage will be strengthened throwing something and feeding, and notes throwing grass and protecting grass.Every day throws something and feeds 1 time at dusk, and feeding volume is deposit shrimp total amount 4% ~ 8%, timing adding water and oxygenation.May is every mu of each input 500 decorative pattern at the end of a poem, article, etc. where there is a small blank space silver carps cun sheet fry and 2000 tail loach cun sheet fry in pond, carries out Fish-shrimp mix-culture, increases economic efficiency further.
(9) shrimp is become to fish for
Start pond cage shrimping from early April, catch and put greatly little, fished for once every 5 ~ 7 days, be continued until by the end of July.Generally shrimp 250 ~ 300 kilograms can be fished in every mu of pond, famous-brand and high-quality fish 200 kilograms.
Claims (1)
1. cray soil pond artificial breeding, breeding integrated technology, it is characterized in that namely breeding in same pond, cultivate again, make a bite pond can gather in the crops two season juvenile prawn, can gather in the crops again two seasons become shrimp, than traditional " shrimp is supported in pond " receive more two season juvenile prawn, one season become shrimp; The technical scheme adopted is as follows:
(1) pond condition and transformation
Tu Chi with rectangle as well, do not limit by area, is advisable for 2 ~ 5 mu; The pond degree of depth 2.5 ~ 3 meters, the ridge, the pond gradient is good with 2.5 ~ 3:1; Face width >=3 meter, the ridge, pond, surface, the ridge, pond surrounding has first by pond prevents escaping net;
Tu Chi has independently culvert system, the low row of high filling; Inlet channel is positioned at surface, the ridge, pond, the centre of pond, major axis one end, pond minor face, and each water inlet pipe has Valve controlling to intake; Drainpipe is positioned at the drainage gate of the other end on water inlet opposite, pond, pond bottom lowest part, double-tube structure, interior pipe controlling water level, and outer tube controls water (flow) direction; Drainage gate is brick mix structure, and specification is generally 1200X800X3000mm, and the water of crossing of the useful 40 mesh sieve thin,tough silk making of each drainage gate is prevented escaping gate;
(2) pond prepares
1, clean up the pond: mid-July drains Chi Shui, clean up the pond with bleaching powder, eliminate harmful animal and wild fishes; Slowly can add water after 4 hours, intake, in case harmful animal enters by the filter screen filtration of 60 mesh sieve thin,tough silk when adding water;
2, plant grass: the submerged plants such as pond bottom plantation eel grass, hydrilla verticillata, water caltrop, waterweed, the cultivated area of submerged plant accounts for 1/2 of pond bottom; The fluitantes such as pond surface transplantation weter hyacinth, method surrounds the water surface of 2 ~ 3 meters wide, throws in more weter hyacinth, forms fluitante district;
3, sunshade: be fixedly installed sunshade crape with meshy steel wire above pond, play the effect of cooling and shading, intensity of illumination < 300Lux is advisable;
(3) close shrimp is thrown in
Annual 7 ~ August throws in close shrimp, throws in 80 ~ 100 kilograms, throws in the standard of close shrimp for every mu:
cabrage 35-50 gram;
color is dark red or dark red, glossy;
appendage is complete, active, healthy;
female and male ratio 3:1;
(4) throw something and feed and apply fertilizer
After parent shrimp is thrown in, a bait of throwing something and feeding at dusk every day, kind of throwing something and feeding is based on spiral shell freshwater mussel meat, water earthworm and white shrimp parent shrimp material, and feeding volume is to deposit 2% ~ 4% of shrimp gross weight; Parent shrimp can be applied fertilizer to pond after throwing in, and apply fertilizer the general available farmyard manure, green grass etc. fermented, and under the prerequisite ensureing condition of water quality, repeatedly throws on a small quantity and executes;
(5) lay eggs, hatch and emerge
8 ~ October, the close shrimp thrown in digs a hole, mating, to lay eggs in pond, fertilized egg sticks to female shrimp belly, through hatching in about 20 ~ 30 days, young membrane continues to stick to female shrimp belly, more abnormal through 2 shellings, becomes juvenile prawn, leave parent and complete oogenesis hatching process, so far whole reproductive process completes;
(6) management is bred
1, the technical measures induction cray synchronous spawning of " controlled light, control temperature, controlling water level, control water quality, reinforcement are thrown something and fed " five in one is adopted: " controlled light " is the double action utilizing sunshade crape and fluitante-weter hyacinth, and controlled light intensity is lower than 300Lux; " control temperature " utilizes the double action shading of sunshade crape and fluitante-weter hyacinth to increase the moon, thus also play the effect of cooling, and recycling bath in evening reaches the effect of stable cooling; " controlling water level " utilizes the double-jacket tube of drainage system in 10 days by low for pond water potential drop about 50 ~ 100cm, plays and slowly stably reduce pond water level effect, impels cray to dig a hole to enter in cavern to lay eggs; " control water quality " utilizes bath in evening and aerator to control water quality, guarantees pond waters dissolved oxygen >=5mg/L; " reinforcement is thrown something and fed " focuses on throw something and feed spiral shell freshwater mussel meat, water earthworm and white shrimp parent shrimp material during close shrimp breeds, and has additional nutrients, impel close shrimp gonad development;
2, every day, the pool was patrolled in timing, observed close shrimp and bred situation and carry out data logging;
3, shrimp seedling is fished for: to be seen to when having a large amount of shrimp seedling independent activities, namely available netting gear is by about 1cm, and the shrimp seedling of body colour blackening is fished for sale or moved foster; Fished for once every 3 ~ 5 days, 10 ~ 120,000 tail shrimp seedlings can be fished in every mu of pond, and remainder about has 3 ~ 50,000 tail shrimp seedlings to stay pond as cultivation seed, enters the juvenile shrimp cultivation stage;
(7) juvenile shrimp cultivation
10 ~ March is the juvenile shrimp cultivation stage, and when water temperature is higher than 12 DEG C, can suitably throw something and feed some fishes gruel or water earthworms, also can suitably throw the farmyard manure executed some green grass He fermented; The things concealeds such as more nest, mesh sheet can be placed in pond, hide for juvenile prawn, to improve survival rate; As in pond, juvenile prawn density is too high, the juvenile prawn that can continue to fish for part 3cm in March is sold or moves foster;
(8) shrimp aquaculture is become
After March, water temperature continues to rise, and enter into the shrimp aquaculture stage, this stage will be strengthened throwing something and feeding, and notes throwing grass and protecting grass; Every day throws something and feeds 1 time at dusk, and feeding volume is deposit shrimp total amount 4% ~ 8%, timing adding water and oxygenation; May is every mu of each input 500 decorative pattern at the end of a poem, article, etc. where there is a small blank space silver carps cun sheet fry and 2000 tail loach cun sheet fry in pond, carries out Fish-shrimp mix-culture, increases economic efficiency further;
(9) shrimp is become to fish for
Start pond cage shrimping from early April, catch and put greatly little, fished for once every 5 ~ 7 days, be continued until by the end of July; Generally shrimp 250 ~ 300 kilograms can be fished in every mu of pond, famous-brand and high-quality fish 200 kilograms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510815325.XA CN105360030A (en) | 2015-11-23 | 2015-11-23 | Earth pond artificial propagation and breeding integrated technology for crayfishes |
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| CN105660497A (en) * | 2016-04-06 | 2016-06-15 | 杨彪 | Culture method of crayfish |
| CN106508763A (en) * | 2016-10-28 | 2017-03-22 | 江苏省渔业技术推广中心 | Ecological high-efficient poly-culturing method of river crab, South America white shrimp and freshwater shrimp |
| CN106508744A (en) * | 2016-11-04 | 2017-03-22 | 湖北省水产科学研究所 | Continuous breeding method for fry self-breeding of crayfishes and mandarin fishes through two ponds in matched manner |
| CN109906983A (en) * | 2019-04-30 | 2019-06-21 | 沈阳创普华农业投资有限公司 | Cray greenhouse breeding method and cray breeding greenhouse |
| CN110663605A (en) * | 2019-10-12 | 2020-01-10 | 沈阳农业大学 | Pond ecological breeding method for crayfishes suitable for northern areas |
| CN110870445A (en) * | 2018-08-31 | 2020-03-10 | 江苏海之威生物科技有限公司 | Novel mixed culture method for one-season rice multi-batch juvenile shrimps and two-season adult shrimps |
| CN110973026A (en) * | 2019-12-12 | 2020-04-10 | 江苏省淡水水产研究所 | Method for breeding crayfish seedlings in advance |
| CN112913740A (en) * | 2021-02-07 | 2021-06-08 | 渤海水产股份有限公司 | Method for transporting seed shrimps |
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| CN105660497A (en) * | 2016-04-06 | 2016-06-15 | 杨彪 | Culture method of crayfish |
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| CN110870445A (en) * | 2018-08-31 | 2020-03-10 | 江苏海之威生物科技有限公司 | Novel mixed culture method for one-season rice multi-batch juvenile shrimps and two-season adult shrimps |
| CN109906983A (en) * | 2019-04-30 | 2019-06-21 | 沈阳创普华农业投资有限公司 | Cray greenhouse breeding method and cray breeding greenhouse |
| CN110663605A (en) * | 2019-10-12 | 2020-01-10 | 沈阳农业大学 | Pond ecological breeding method for crayfishes suitable for northern areas |
| CN110973026A (en) * | 2019-12-12 | 2020-04-10 | 江苏省淡水水产研究所 | Method for breeding crayfish seedlings in advance |
| CN112913740A (en) * | 2021-02-07 | 2021-06-08 | 渤海水产股份有限公司 | Method for transporting seed shrimps |
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