CN101564017A - Pool ecological breeding method for coilia nasus by filling river water to accept fries - Google Patents

Pool ecological breeding method for coilia nasus by filling river water to accept fries Download PDF

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Publication number
CN101564017A
CN101564017A CNA200910030354XA CN200910030354A CN101564017A CN 101564017 A CN101564017 A CN 101564017A CN A200910030354X A CNA200910030354X A CN A200910030354XA CN 200910030354 A CN200910030354 A CN 200910030354A CN 101564017 A CN101564017 A CN 101564017A
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China
Prior art keywords
pond
water
seedling
shrimp
coilia
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CNA200910030354XA
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CN101564017B (en
Inventor
郑金良
徐跑
张呈祥
顾若波
徐钢春
闻海波
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JIANGYIN SHENGANG SANXIAN CULTIVATION CO Ltd
Freshwater Fisheries Research Center of Chinese Academy of Fishery Sciences
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JIANGYIN SHENGANG SANXIAN CULTIVATION CO Ltd
Freshwater Fisheries Research Center of Chinese Academy of Fishery Sciences
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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
    • 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
    • Y02A40/818Alternative feeds for fish, e.g. in aquacultures

Abstract

The invention relates to a pool ecological breeding method for coilia nasus by filling river water to accept fries, and belongs to the technical field of fry accepting and breeding. The method is characterized by comprising the following process steps: (1) selecting a soil pool along the river; (2) using a silk cover net to set a special fry accepting area; (3) when the fry amount reaches 1 to 3 fish per liter, adopting a water pump to accept the fries in time; (4) adopting the measures of pouring soybean milk and throwing ovigerous shrimps by a netlike box to breed natural food organisms; (5) when the temperature of water in the pool is below 10 DEG C, carrying out separation and wild removal operations for advanced fry in the fry accepting pool; (6) adopting the ecological technical measures such as throwing fermented organic fertilizer, stocking juvenile shrimps, breeding silver carp and the like to strictly adjust and control water quality and breed the coilia nasus in a special pool; and (7) breeding the coilia nasus to a period of two winters, and fishing the coilia nasus to sell according to the market demand. The method effectively breaks through the pool breeding problem of the coilia nasus, obtains the coilia nasus which has the same quality as wild coilia nasus, further achieves artificial breeding of the coilia nasus on a deeper level, builds a good ecological environment, and can remarkably improve the survival rate of the fries.

Description

A kind of pond ecological cultivation method of coilia nasus by filling river water
Technical field
The present invention relates to a kind of pond ecological cultivation method of coilia nasus by filling river water, belong to fish and receive seedling, cultural technique field.
Background technology
The cutter long-tailed anchovy, formal name used at school Coilia nasus has another name called long jaw long-tailed anchovy, is commonly called as Mao Huayu, wood shavings fish, hair long-tailed anchovy, hairtail, belongs to Clupeiformes Anchovy section long-tailed anchovy and belong in classification.It is with fine and tender taste, and delicious flavour and being celebrated is the famous and precious fish of enjoying one of " the Changjiang river three delicacies " good reputation.In recent years, because all multifactor influences such as overfishing and ecological degeneration, cutter long-tailed anchovy resource sharply failed, and was few pitiful, expensive surprising, and at present, its output is all by fishing for, its artificial breeding with culture the genus global problem, very thorny, and need to be resolved hurrily.Therefore, break through artificial domestication, the breeding of cutter long-tailed anchovy, carry out propagating artificially and breeding of cutter long-tailed anchovy then, save this precious species, have crucial meaning.
Irritating Jiang Namiao is exactly to introduce Yangtze River Water mating season the cutter long-tailed anchovy, and the cutter long-tailed anchovy fertilized egg of breeding naturally in the Changjiang river, fry is also introduced the method for pond culture with water.In existing similar techniques, rarely seen have the Jiang Namiao of filling to intercept crossing over gate dam, recovers in the application of natural lake fish, and Shang Weijian has the mode that the heavy caliber water pump is fetched water to introduce to irritate the Jiang Namiao technology and uses report in the pond culture of cutter long-tailed anchovy.
The cutter long-tailed anchovy is a kind of genitality straddling fish stocks, and its artificial propagation is difficult to break through, and seed only derives from wild seedling; In addition, the cutter long-tailed anchovy is very tender and lovely, and is dried up promptly dead, and these are the technical barriers that puzzlement cutter long-tailed anchovy is cultured always.In recent years, also have purse seine " middle bar " to carry out the report that the cutter long-tailed anchovy is cultured, but this technology exist culturing area restriction, environment to be difficult to shortcomings such as control.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, thereby provide a kind of pond ecological cultivation method of coilia nasus by filling river water, this method collects wild seedling, cultivate the natural bait biology, Na Miao district is set, separate remove wild, specially technology such as pond cultivation and adult fish culture are in one, break through cutter long-tailed anchovy pond culture problem effectively, the cutter long-tailed anchovy that acquisition can compare favourably with wild cutter long-tailed anchovy quality, and then realize the artificial propagation of cutter long-tailed anchovy on more profound, build good ecotope, can improve weed survival rate significantly.
According to technical scheme provided by the invention, the pond ecological cultivation method of a kind of coilia nasus by filling river water of the present invention, adopt the following step of culturing:
1, a kind of pond ecological cultivation method of coilia nasus by filling river water is characterized in that adopting following processing step:
(1), Tu Chi selects
Select Tu Chi along the river, area 3-10 mu, depth of water 1.5-3m, bed mud 5-10cm, clean up the pond, sterilize and tan by the sun with lime in the pond;
(2), special-purpose Na Miao district is set
Be separated into a Na Miao district that accounts for the pond gross area 1/4 at pond one end with bolting silk net sheet earlier before discharging water by water inlet, the online portion of bolting silk is fixed on the both sides, pond with rope, bolting silk net sheet exceeds water surface 15-20cm, and the separate mesh bottom prevents escaping with gabion is fixing, and the pond water inlet puts a bag shape knotless net;
(3), efficiently receive seedling
Since mid-May, get the river sample every other day with the water sample device, under microscopic system, detect cutter long-tailed anchovy fertilized egg, fry amount in the river; When the seedling amount reaches 1-3 tail/L, receive seedling with water pump, receiving the seedling time is 9-11 hour, a day inflow accounts for 1/5 of full pond water body;
(4), natural bait biological culture and Na Miao district management
Receive seedling after 2~3 days, sprinkle in the Na Miao district and feed soya-bean milk, after 18-20 days, press 4-5g/m again 2Amount put into the oogenesis freshwater shrimp with net cage;
(5), remove the lay eggs shrimp and the freshwater shrimp mixed bait that begins to throw something and feed after freshwater shrimp emerges; Na Miao district water quality transparency is at 28-32cm, and dissolved oxygen in water is at 10-6mg/L; Remove separate mesh when growing, make the fingerling growth of ingesting in whole pond to the postlarva after date; Carry out full pool spilling head with sterilizing prevent disease with chlorine dioxide 45~55g/ mu every other month;
(6), separate except that wild operation
Water temperature is that 10 purpose lock out operation nets separate and remove wild operation to the cutter tapertail anchovy kind mesh of Na Miaochi below 10 ℃ the time in the pond, isolates fingerling separately and changes the special-purpose pond of culturing over to and cultivate to receiving seedling pond cutter long-tailed anchovy;
(7), specially pond ecological is cultured
Cultivating Tu Chi is 5-10 mu, and through cleaning up the pond, sterilize and tanning by the sun, with water filling 1.8-2.2m behind the good mouth of pipe of bolting silk net, the fertilizer 28-30Kg/ mu of dispensing fermentation is thrown in juvenile prawn 9-10Kg/ mu; It is 9-11cm cutter tapertail anchovy in one age kind 1100-1300 tail that mu is put body long, young spoken parts in an opera silver carp 90~110 tail/mus of arranging in pairs or groups;
Put the continuous two days full pool spilling head chlorine dioxide 45~55g/ mu in back in a suitable place to breed, reduce cutter tapertail anchovy body because of drawing in the net to abrade the death that causes; Cultivation Tu Chi sprinkles hello soya-bean milk, dispensing photosynthetic bacteria and additional juvenile prawn and regulates water quality, directly overlaps June and supports shrimp with ovums 2.5-4Kg/ mu, the freshwater shrimp manufactured feed of throwing something and feeding simultaneously;
Cultivate the pond and keep the pH value between 7.2-8, the water quality transparency is controlled at 28~32cm, and oxygen in water is not less than 6mg/L, uses chlorine dioxide 45~55g/ mu full pool spilling head every other month;
(8), marketable fish is fished for
The cutter tapertail anchovy was cultured to two ages in winter, and body weight reaches more than the 50g, can fish for listing.
Described pond is with the sterilization of cleaning up the pond of 120Kg/ mu quicklime, and tans by the sun 6-15 days.
Sprinkle and feed soybean milk quantity in described Na Miao district: 0.25-0.35Kg/ mu.
Hello soybean milk quantity is sprinkled in the described special-purpose pond of cultivating: 0.3-0.5Kg/ mu; The liquid EM bacterium of described dispensing: 2.0-3.0Kg/ mu; Described additional juvenile prawn amount: 8-12Kg/ mu.
After emerging, described freshwater shrimp removes the shrimp and beginning of laying eggs by the amount of the shrimp seedling body weight 5% freshwater shrimp manufactured feed 4 of throwing something and feeding #Material.
Described throwing is directly overlapped and support shrimp with ovums June, simultaneously by the amount of the juvenile prawn body weight 3% freshwater shrimp manufactured feed 3 of throwing something and feeding #Material.
Compared with the prior art the present invention has the following advantages:
1, receiving the seedling technology has adopted modern monitoring instrument equipment, has avoided receiving the blindness of seedling, has very strong feasibility; The technology of water pump diversion is introduced in the filling Jiang Namiao technology, possessed very strong originality.
2, the method that adopts ecological principle and cutter long-tailed anchovy early growth and development demand to combine; take to receive seedling, the Na Miao district be set, cultivate the natural bait biology, separate and remove wild, special technical optimization technologies such as pond ecological breed; has unique creativeness; the key technology of cutter long-tailed anchovy pond culture takes the lead in successfully breaking through at home; according to cutter long-tailed anchovy life habit, feeding habits, biological property such as grow; rationally build ecological balance cultural technique; improve the quality of commodity cutter long-tailed anchovy, established technical foundation for realizing truly artificial propagation and large-scale cultivation.
3, the present invention is by discharging photosynthetic bacteria (liquid EM bacterium), cultivate the natural bait biology, put the oogenesis freshwater shrimp in a suitable place to breed, suitably taking ecological technique measures such as supporting silver carp, strict regulation and control water quality in breeding process, for the pond culture of cutter long-tailed anchovy provides the most effective Practice Measures and means, really set forth the theory of " breeding fish with water; support water ", society, remarkable in economical benefits with fishing.
Description of drawings
Fig. 1 receives the ad hoc seedling plot structure schematic diagram of receiving of Miao Chi for the present invention.
Fig. 2 is the separation net of the present invention (cross-sectional view of I~I).
Embodiment
Embodiment during following the present invention incites somebody to action in conjunction with the accompanying drawings is further described:
Embodiment 1: the pond ecological cultivation method of a kind of coilia nasus by filling river water of the present invention, adopt the following step of culturing:
Place: base, rare fish protection research center, the Changjiang river
(1) Tu Chi selects
Riverside Tu Chi, 5 mu of the areas of Na Miaochi, pond depth of water 1.5m, bed mud 5cm.May 7, the pond was through the clean up the pond sterilization and tanning by the sun 6 days of 120Kg/ mu quicklime.
(2) special-purpose Na Miao district is set
Be separated into a Na Miao district that accounts for the pond gross area about 1/4 at pond one end by water inlet with 40 purpose bolting silk nets earlier before the pond discharges water, top is fixed on the both sides, pond with rope, and the net sheet exceeds water surface 15cm, and anti-escaping fixed with gabion in the separate mesh bottom.Water inlet puts the bag shape knotless net that mesh is 0.8cm, prevents that wild fishes that the bodily form is relatively large etc. from entering.
(3) efficiently receiving seedling and food organisms cultivates
Since mid-May, get the river sample every other day with the water sample device, under microscopic system, detect cutter long-tailed anchovy fertilized egg, fry amount in the river, and definite developmental stage; In time adopting " putting forth energy to reach " board bore when the seedling amount reaches 1 tail (grain)/L is that 30cm, power are that the water pump of 22KW is received seedling, and receiving the seedling time is 10 hours, and a day inflow accounts for 1/5 of full pond water body.
Carry out ad hoc Na Miao district on June 22,22 days to 2005 May in 2005 and receive seedling, washed by water every day 11 hours.Sprinkled June 1 and feed soya-bean milk, sprinkle the amount of feeding and be 0.25Kg/ mu, and pressed 4g/m again June 20 in the Na Miao district 2About amount put into the oogenesis freshwater shrimp with net cage.In the breeding process oxygenation in time with add water, keep about water quality transparency 28cm, dissolved oxygen in water uses chlorine dioxide (50g/ mu, Wuxi Zhong Shui fishing medicine Co., Ltd) to splash with sterilizing prevent disease about 6mg/L every other month.
(4) natural bait biological culture and Na Miao district management
Feed soya-bean milk receiving behind the seedling the 2nd day in the Na Miao district and sprinkle, press 4g/m after 18 days again 2About amount put into the oogenesis freshwater shrimp with net cage.After emerging, freshwater shrimp removes the shrimp and beginning of laying eggs by the amount of the shrimp seedling body weight 5% freshwater shrimp manufactured feed 4 of throwing something and feeding #Material (great river, Changzhou feed corporation,Ltd).The frequent oxygenation in Na Miao district with add water, keep water quality salubrious, about transparency 28cm, dissolved oxygen in water is about 6mg/L.Remove separate mesh when growing, make the fingerling growth of ingesting in whole pond to the postlarva after date.Use chlorine dioxide (50g/ mu, Wuxi Zhong Shui fishing medicine Co., Ltd) to splash every other month with sterilizing prevent disease.
(5) separate except that wild operation
December 3, water temperature is separated the cutter tapertail anchovy kind of Na Miaochi below 10 ℃ the time and is removed wild operation in the pond, isolates fingerling separately and changes the special-purpose pond of culturing over to and cultivate.The lock out operation netting gear is the summer flower net, draws in the net to take exercise through twice earlier, just formally separates for the third time, must the operation of band water.Require the straight and upright non-stick web of net sheet, dress seedling amount will be less, avoid wild fishes to enter.The individual then body of the seedling pond cutter long-tailed anchovy that receives is long to be 8-14cm, and body weight is between the 4-10 gram.
(6) specially pond ecological is cultured
Special-purpose 5 mu in the native pond of cultivating is through the clean up the pond sterilization and tanning by the sun 6 days of 120Kg/ mu quicklime.Package behind the mouth of pipe about water filling 1.8m with 80 mesh sieve tulles, the fertilizer 28Kg/ mu of dispensing fermentation is thrown in juvenile prawn 9Kg/ mu.Put a small amount of fry of Miao Qianyong and " try the water ", determine to put seedling again after the safety, mu is put 9cm cutter tapertail anchovy in one age kind 1100 tails, the young spoken parts in an opera silver carp 110 tail/mus of arranging in pairs or groups.Put the continuous two days full pool spilling head chlorine dioxide (50g/ mu, Wuxi Zhong Shui fishing medicine company) in back in a suitable place to breed, reduce the hairtail body because of drawing in the net to abrade the death that causes; Hello soya-bean milk (0.30Kg/ mu), dispensing photosynthetic bacteria (liquid EM bacterium are sprinkled in the special-purpose pond of cultivating, regulate water quality 2.0Kg/ mu), replenish juvenile prawn measures such as (8Kg/ mus), directly overlap June and support shrimp with ovums 2.5Kg/ mu, simultaneously by the amount of the juvenile prawn body weight 3% freshwater shrimp manufactured feed 3 of throwing something and feeding #Material (great river, Changzhou feed corporation,Ltd).Cultivate the pond and often wash by water spring, add high water level winter, timely oxygenation in summer as far as possible, often wash by water, change water, keep the pH value 7.2, the water quality transparency is controlled at about 30cm, about oxygen in water 6mg/L, use chlorine dioxide (50g/ mu, Wuxi Zhong Shui fishing medicine Co., Ltd) full pool spilling head every other month.
(7) marketable fish is fished for
The cutter long-tailed anchovy was cultured to two ages in winter, and body weight reaches more than the 50g, when fishing for 80 order gauze careful operation, the bigger water body of maintenance in the net, catch stay greatly little.
Fish for finished product fish according to the market demand on April 1,10 days to 2007 October in 2006, gathers in the crops about cutter long-tailed anchovy 4500 tails accumulative total 337.5Kg altogether.
Embodiment 2: the pond ecological cultivation method of a kind of coilia nasus by filling river water of the present invention, adopt the following step of culturing:
Place: Jiangyin Shengang Sanxian Cultivation Co., Ltd.
(1) Tu Chi selects
Riverside Tu Chi, 4 mu/mouthful of the areas of Na Miaochi, pond depth of water 1.8m, bed mud 8cm.May 7, the pond was through the clean up the pond sterilization and tanning by the sun 10 days of 120Kg/ mu quicklime.
(2) special-purpose Na Miao district is set
Be separated into a Na Miao district that accounts for the pond gross area about 1/4 at pond one end by water inlet with 40 purpose bolting silk nets earlier before the pond discharges water, top is fixed on the both sides, pond with rope, and the net sheet exceeds water surface 18cm, and anti-escaping fixed with gabion in the separate mesh bottom.Water inlet puts the bag shape knotless net that mesh is 0.8cm, prevents that wild fishes that the bodily form is relatively large etc. from entering.
(3) efficiently receiving seedling and food organisms cultivates
Since mid-May, get the river sample every other day with the water sample device, under microscopic system, detect cutter long-tailed anchovy fertilized egg, fry amount in the river, and definite developmental stage; In time adopting " putting forth energy to reach " board bore when the seedling amount reaches 2 tails (grain)/L is that 30cm, power are that the water pump of 22KW is received seedling.
Carry out ad hoc Na Miao district on July 10,1 day to 2006 June in 2006 and receive seedling, washed by water every day 12 hours.Sprinkled June 5 and feed soya-bean milk, sprinkle the amount of feeding and be 0.30Kg/ mu, and pressed 5g/m again June 24 in the Na Miao district 2About amount put into the oogenesis freshwater shrimp with net cage.In the breeding process oxygenation in time with add water, keep about water quality transparency 30cm, dissolved oxygen in water uses chlorine dioxide (50g/ mu, Wuxi Zhong Shui fishing medicine Co., Ltd) to splash with sterilizing prevent disease about 8mg/L every other month.
(4) natural bait biological culture and Na Miao district management
Feed soya-bean milk receiving behind the seedling the 2nd day in the Na Miao district and sprinkle, press 5g/m after 19 days again 2About amount put into the oogenesis freshwater shrimp with net cage.After emerging, freshwater shrimp removes the shrimp and beginning of laying eggs by the amount of the shrimp seedling body weight 5% freshwater shrimp manufactured feed 4 of throwing something and feeding #Material (great river, Changzhou feed corporation,Ltd).The frequent oxygenation in Na Miao district with add water, keep water quality salubrious, about transparency 30cm, dissolved oxygen in water is about 8mg/L.Remove separate mesh when growing, make the fingerling growth of ingesting in whole pond to the postlarva after date.Use chlorine dioxide (50g/ mu, Wuxi Zhong Shui fishing medicine Co., Ltd) to splash every other month with sterilizing prevent disease.
(5) separate except that wild operation
December 5, water temperature is separated the cutter tapertail anchovy kind of Na Miaochi below 9 ℃ the time and is removed wild operation in the pond, isolates fingerling separately and changes the special-purpose pond of culturing over to and cultivate.The lock out operation netting gear is the summer flower net, draws in the net to take exercise through twice earlier, just formally separates for the third time, must the operation of band water.Require the straight and upright non-stick web of net sheet, dress seedling amount will be less, avoid wild fishes to enter.The individual then body of the seedling pond cutter long-tailed anchovy that receives is long to be 8-14cm, and body weight is between the 4-10 gram.
(6) specially pond ecological is cultured
Special-purpose 5 mu in the native pond of cultivating is through the clean up the pond sterilization and tanning by the sun 10 days of 120Kg/ mu quicklime.Package behind the mouth of pipe about water filling 2.0m with 80 mesh sieve tulles, the fertilizer 29Kg/ mu of dispensing fermentation is thrown in juvenile prawn 10Kg/ mu.Put a small amount of fry of Miao Qianyong and " try the water ", determine to put seedling again after the safety, mu is put 10cm cutter tapertail anchovy in one age kind 1200 tails, the young spoken parts in an opera silver carp 100 tail/mus of arranging in pairs or groups.Put the continuous two days full pool spilling head chlorine dioxide (50g/ mu, Wuxi Zhong Shui fishing medicine Co., Ltd) in back in a suitable place to breed, reduce the hairtail body because of drawing in the net to abrade the death that causes; Hello soya-bean milk (0.40Kg/ mu), dispensing photosynthetic bacteria (liquid EM bacterium are sprinkled in the special-purpose pond of cultivating, regulate water quality 2.5Kg/ mu), replenish juvenile prawn measures such as (10Kg/ mus), directly overlap June and support shrimp with ovums 3.0Kg/ mu, simultaneously by the amount of the juvenile prawn body weight 3% freshwater shrimp manufactured feed 3 of throwing something and feeding #Material (great river, Changzhou feed corporation,Ltd).Cultivate the pond and often wash by water spring, add high water level winter, timely oxygenation in summer as far as possible, often wash by water, change water, keep the pH value 7.6, the water quality transparency is controlled at about 30cm, about oxygen in water 8mg/L, use chlorine dioxide (50g/ mu, Wuxi Zhong Shui fishing medicine Co., Ltd) full pool spilling head every other month.
(7) marketable fish is fished for
The cutter long-tailed anchovy was cultured to two ages in winter, and body weight reaches more than the 50g, when fishing for 80 order gauze careful operation, the bigger water body of maintenance in the net, catch stay greatly little.
Fish for marketable fish according to the market demand on April 5,20 days to 2008 October in 2007, gathers in the crops altogether about cutter long-tailed anchovy 5400 tails, adds up to 378Kg.
Embodiment 3: the pond ecological cultivation method of a kind of coilia nasus by filling river water of the present invention, adopt the following step of culturing:
Place: base, aquatic products director, Jiangyin City
(1) Tu Chi selects
Riverside Tu Chi, 4 mu/mouthful of the areas of Na Miaochi, pond depth of water 2.0m, bed mud 10cm.May 25, the pond was through the clean up the pond sterilization and tanning by the sun of 120Kg/ mu quicklime, and organic fertilizer 30Kg/ mu carries out rich water after 15 days.
(2) special-purpose Na Miao district is set
Be separated into a Na Miao district that accounts for the pond gross area about 1/4 at pond one end by water inlet with 40 purpose bolting silk nets earlier before the pond discharges water, top is fixed on the both sides, pond with rope, and the net sheet exceeds water surface 20cm, and anti-escaping fixed with gabion in the separate mesh bottom.Water inlet puts the bag shape knotless net that mesh is 0.8cm, prevents that wild fishes that the bodily form is relatively large etc. from entering.
(3) efficiently receiving seedling and food organisms cultivates
Since mid-May, get the river sample every other day with the water sample device, under microscopic system, detect cutter long-tailed anchovy fertilized egg, fry amount in the river, and definite developmental stage; In time adopting " putting forth energy to reach " board bore when the seedling amount reaches 3 tails (grain)/L is that 30cm, power are that the water pump of 22KW is received seedling.
Carry out ad hoc Na Miao district on July 20,10 days to 2006 June in 2006 and receive seedling, washed by water every day 13 hours.Sprinkled June 15 and feed soya-bean milk, sprinkle the amount of feeding and be 0.35Kg/ mu, and pressed 5g/m again June 30 in the Na Miao district 2About amount put into the oogenesis freshwater shrimp with net cage.In the breeding process oxygenation in time with add water, keep about water quality transparency 32cm, dissolved oxygen in water uses chlorine dioxide (50g/ mu, Wuxi Zhong Shui fishing medicine Co., Ltd) to splash with sterilizing prevent disease about 9mg/L every other month.
(4) natural bait biological culture and Na Miao district management
Receive seedling after 20 days again by 5g/m 2About amount put into the oogenesis freshwater shrimp with net cage.After emerging, freshwater shrimp removes the shrimp and beginning of laying eggs by the amount of the shrimp seedling body weight 5% freshwater shrimp manufactured feed 4 of throwing something and feeding #Material (great river, Changzhou feed corporation,Ltd).The frequent oxygenation in Na Miao district with add water, keep water quality salubrious, about transparency 32cm, dissolved oxygen in water is about 9mg/L.Remove separate mesh when growing, make the fingerling growth of ingesting in whole pond to the postlarva after date.Use chlorine dioxide (50g/ mu, Wuxi Zhong Shui fishing medicine Co., Ltd) to splash every other month with sterilizing prevent disease.
(5) separate except that wild operation
December 6, water temperature is separated the cutter tapertail anchovy kind of Na Miaochi below 8 ℃ the time and is removed wild operation in the pond, isolates fingerling separately and changes the special-purpose pond of culturing over to and cultivate.The lock out operation netting gear is the summer flower net, draws in the net to take exercise through twice earlier, just formally separates for the third time, must the operation of band water.Require the straight and upright non-stick web of net sheet, dress seedling amount will be less, avoid wild fishes to enter.The individual then body of the seedling pond cutter long-tailed anchovy that receives is long to be 8-14cm, and body weight is between the 4-10 gram.
(6) specially pond ecological is cultured
Special-purpose 11 mu in the native pond of cultivating is through the clean up the pond sterilization and tanning by the sun 15 days of 120Kg/ mu quicklime.Package behind the mouth of pipe about water filling 2.2m the fertilizer of dispensing fermentation (Changzhou gold sun animal health product Co., Ltd produces) 30Kg/ mu, input juvenile prawn 10Kg/ mu with 80 mesh sieve tulles.Put a small amount of fry of Miao Qianyong and " try the water ", determine to put seedling again after the safety, mu is put 10cm cutter tapertail anchovy in one age kind 1300 tails, the young spoken parts in an opera silver carp 90 tail/mus of arranging in pairs or groups.Put the continuous two days full pool spilling head chlorine dioxide (50g/ mu, Wuxi Zhong Shui fishing medicine Co., Ltd) in back in a suitable place to breed, reduce the hairtail body because of drawing in the net to abrade the death that causes; Hello soya-bean milk (0.50Kg/ mu), dispensing photosynthetic bacteria (liquid EM bacterium are sprinkled in the special-purpose pond of cultivating, regulate water quality 3.0Kg/ mu), replenish juvenile prawn measures such as (12Kg/ mus), directly overlap June and support shrimp with ovums 4Kg/ mu, simultaneously by the amount of the juvenile prawn body weight 3% freshwater shrimp manufactured feed 3 of throwing something and feeding #Material (great river, Changzhou feed corporation,Ltd).Cultivate the pond and often wash by water spring, add high water level winter, timely oxygenation in summer as far as possible, often wash by water, change water, keep the pH value 7.8, the water quality transparency is controlled at about 32cm, about oxygen in water 9mg/L, use chlorine dioxide (50g/ mu, Wuxi Zhong Shui fishing medicine Co., Ltd) full pool spilling head every other month.
(7) marketable fish is fished for
The cutter long-tailed anchovy was cultured to two ages in winter, and body weight reaches more than the 50g, when fishing for 80 order gauze careful operation, the bigger water body of maintenance in the net, catch stay greatly little.
Fish for marketable fish according to the market demand on May 20,21 days to 2008 September in 2007, gathers in the crops about cutter long-tailed anchovy 9900 tails accumulative total 782.1Kg altogether.

Claims (6)

1, a kind of pond ecological cultivation method of coilia nasus by filling river water is characterized in that adopting following processing step:
(1), Tu Chi selects
Select Tu Chi along the river, area 3-10 mu, depth of water 1.5-3m, bed mud 5-10cm, clean up the pond, sterilize and tan by the sun with lime in the pond;
(2), special-purpose Na Miao district is set
Be separated into a Na Miao district that accounts for the pond gross area 1/4 at pond one end with bolting silk net sheet earlier before discharging water by water inlet, the online portion of bolting silk is fixed on the both sides, pond with rope, bolting silk net sheet exceeds water surface 15-20cm, and the separate mesh bottom prevents escaping with gabion is fixing, and the pond water inlet puts a bag shape knotless net;
(3), efficiently receive seedling
Since mid-May, get the river sample every other day with the water sample device, under microscopic system, detect cutter long-tailed anchovy fertilized egg, fry amount in the river; When the seedling amount reaches 1-3 tail/L, receive seedling with water pump, receiving the seedling time is 9-11 hour, a day inflow accounts for 1/5 of full pond water body;
(4), natural bait biological culture and Na Miao district management
Receive seedling after 2~3 days, sprinkle in the Na Miao district and feed soya-bean milk, after 18-20 days, press 4-5g/m again 2Amount put into the oogenesis freshwater shrimp with net cage;
(5), remove the lay eggs shrimp and the freshwater shrimp mixed bait that begins to throw something and feed after freshwater shrimp emerges; Na Miao district water quality transparency is at 28-32cm, and dissolved oxygen in water is at 10-6mg/L; Remove separate mesh when growing, make the fingerling growth of ingesting in whole pond to the postlarva after date; Carry out full pool spilling head with sterilizing prevent disease with chlorine dioxide 45~55g/ mu every other month;
(6), separate except that wild operation
Water temperature is that 10 purpose lock out operation nets separate and remove wild operation to the cutter tapertail anchovy kind mesh of Na Miaochi below 10 ℃ the time in the pond, isolates fingerling separately and changes the special-purpose pond of culturing over to and cultivate to receiving seedling pond cutter long-tailed anchovy;
(7), specially pond ecological is cultured
Cultivating Tu Chi is 5-10 mu, and through cleaning up the pond, sterilize and tanning by the sun, with water filling 1.8-2.2m behind the good mouth of pipe of bolting silk net, the fertilizer 28-30Kg/ mu of dispensing fermentation is thrown in juvenile prawn 9-10Kg/ mu; It is 9-11cm cutter tapertail anchovy in one age kind 1100-1300 tail that mu is put body long, young spoken parts in an opera silver carp 90~110 tail/mus of arranging in pairs or groups;
Put the continuous two days full pool spilling head chlorine dioxide 45~55g/ mu in back in a suitable place to breed, reduce cutter tapertail anchovy body because of drawing in the net to abrade the death that causes; Cultivation Tu Chi sprinkles hello soya-bean milk, dispensing photosynthetic bacteria and additional juvenile prawn and regulates water quality, directly overlaps June and supports shrimp with ovums 2.5-4Kg/ mu, the freshwater shrimp manufactured feed of throwing something and feeding simultaneously;
Cultivate the pond and keep the pH value between 7.2-8, the water quality transparency is controlled at 28~32cm, and oxygen in water is not less than 6mg/L, uses chlorine dioxide 45~55g/ mu full pool spilling head every other month;
(8), marketable fish is fished for
The cutter tapertail anchovy was cultured to two ages in winter, and body weight reaches more than the 50g, can fish for listing.
2, the pond ecological cultivation method of a kind of coilia nasus by filling river water according to claim 1 is characterized in that described pond with the sterilization of cleaning up the pond of 120Kg/ mu quicklime, and tanned by the sun 6-15 days.
3, the pond ecological cultivation method of a kind of coilia nasus by filling river water according to claim 1 is characterized in that the bold and vigorous soybean milk quantity of feeding in described Na Miao district: 0.25-0.35Kg/ mu.
4, the pond ecological cultivation method of a kind of coilia nasus by filling river water according to claim 1 is characterized in that the described special-purpose bold and vigorous soybean milk quantity of feeding in pond of cultivating: 0.3-0.5Kg/ mu; The liquid EM bacterium of described dispensing: 2.0-3.0Kg/ mu; Described additional juvenile prawn amount: 8-12Kg/ mu.
5, the pond ecological cultivation method of a kind of coilia nasus by filling river water according to claim 1 is characterized in that removing after described freshwater shrimp emerges the shrimp and beginning by the amount of the shrimp seedling body weight 5% freshwater shrimp manufactured feed 4 of throwing something and feeding of laying eggs #Material.
6, the pond ecological cultivation method of a kind of coilia nasus by filling river water according to claim 1, it is characterized in that described throwing June directly cover support shrimp with ovums, simultaneously by the amount of the juvenile prawn body weight 3% freshwater shrimp manufactured feed 3 of throwing something and feeding #Material.
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