The method of greenhouse, pond Penaeus Vannmei, three batches of alternate cultures of Macrobrachium rosenbergii
Technical field
The present invention relates to aquaculture, especially the method for Penaeus Vannmei, three batches of alternate cultures of Macrobrachium rosenbergii.
Background technology
Penaeus Vannmei (
penaeus vannamei), formal name used at school Environment of Litopenaeus vannamei Low, is wide temperature eurysalinity torrid zone shrimps, can be at 18-32 DEG C, under salinity 1-40 ‰ condition, grow, and be a kind of good desalination cultivation kind.Penaeus Vannmei has the advantages such as individuality is large, growth is fast, nutritional need is low, premunition is strong, adaptive capacity to water environment factors is stronger,, dressing percentage low to forage protein content requirement up to more than 65%, the advantage such as the dried up time-to-live is long, being the improved seeds of intensive high yielding culture, is the highest shrimp species of single rate in current three large cultured prawns in the world.
Macrobrachium rosenbergii (
macrobrachium rosenbergii) have another name called Malaysian prawn, the long-armed prawn of fresh water, be a kind of large-scale fresh water shrimp, originate in Southeast Asia.It has, and growth is fast, feeding habits wide, meat nutrition is good, and the advantage such as the culture-cycle is short.Since starting to propagate Macrobrachium rosenbergii artificially the sixties in last century, rapidly, existing country in Southeast Asia and some other this shrimp of area cultivation are commonplace in development.China in Guangdong, Guangxi, Hunan, Hubei, Jiangsu, Shanghai, Zhejiang Deng Shiduoge provinces, cities and autonomous regions cultivates, Macrobrachium rosenbergii originates in the torrid zone, waters, subtropics, and the life water temperature of its adaptation is 24~30 DEG C, in the time that water temperature drops to 16 DEG C, be slow in action, progressively dead.Therefore only have 4~5 months at the suitable culturing time of China.
The shrimps that Penaeus Vannmei and Macrobrachium rosenbergii Dou Shi China citizen like, cultured area is very large at home, but this two seed shrimp is all water warm shrimps, be with Jiangsu and Zhejiang Provinces one, all have no idea cultivate this two seed shrimp because water temperature is too low the season of early spring and early winter, need to build simple plastic greenhouse and extend the culturing time of shrimp; At present area, Jiangsu and Zhejiang Provinces Penaeus Vannmei greenhouse cultivation can only two batches of cultivation, and Macrobrachium rosenbergii also more adopts one batch of cultivation, and these aquaculture models can not more effectively utilize pond green house to promote the effect of water temperature.
Summary of the invention
The object of this invention is to provide the method for greenhouse, a kind of pond Penaeus Vannmei, three batches of alternate cultures of Macrobrachium rosenbergii.
Sterilization is built and leveled to technical scheme of the present invention by greenhouse, pond, hut is cultivated, put the seedling time for three batches, throwing is raised, water quality management, associating oxygenation, disease control, three batches of fishing step compositions, it is characterized in that adopting and above pond, build large span flexible wire ropes plastic tunnel greenhouse, each pond area 4-5 mu, and then in plastic greenhouse, build a hut, the i.e. little Chi of 300-400 square metre of one jiao of excavation in the pond of plastic greenhouse, depth of water 1.0-1.2 rice, at the bottom of pond, stay a small amount of mud, top, soil pond covers layer of plastic film again, and be equipped with oxygen increasing equipment, putting every mu of the previous moon in a suitable place to breed in seed sterilizes with quicklime 100-150 kilogram of full pond, seed, after support in the hut grain bin that schedules to last 15-20 days, is put into pond and carries out aquaculture management, first batch of Penaeus Vannmei put seedling 18-22 in March day in pond, specification 1.5-2.0cm is put seedling 5-6 ten thousand tails for every mu, second batch of Penaeus Vannmei put seedling 1-6 in July day in pond, specification 1.5-2.0cm is put seedling 5-7 ten thousand tails for every mu, the 3rd batch of Macrobrachium rosenbergii put seedling 20-22 in October day in pond, specification 5.0-7.0cm is put seedling 3-4 ten thousand tails for every mu, first and regrowth hair Penaeus Vannmei put 1-15 days after seedling, if food organisms are abundant, the feed of just need not throwing something and feeding starts the feed of throwing something and feeding for 15 days later, if food organisms deficiency (substantially can't see food organisms in water body), just advances to and puts the 5-8 days manufactured feeds of throwing something and feeding after seedling, and the 3rd batch of Macrobrachium rosenbergii put the manufactured feed that just directly starts to throw something and feed after seedling, bait throwing in every day 2 times during this, throwing the amount of raising is 8%-10% of shrimp body weight, the fresh and alive feed of also can throwing something and feeding 1 time every 2-3 days, put 30-60 days after seedling, prawn individuality is grown up gradually, and at this moment the algae of the Chi Shuizhong that no longer ingests should strengthen and throw the amount of raising, and throws something and feeds every day 4 times, and daily ration, feeding quantity is 5% of shrimp body weight, put the management phase of seedling after 60 days, throw something and feed 5-6 every day, and throwing the amount of raising is 3%-4% of shrimp body weight, progressively add water if put seedling 1-30 God, to improve water quality and increase water level, if water colour is too clear, must add chemical fertilizer or fertilizer, make Chi Shui keep yellow green or dark brown, 30-60 days, changed water 1 time every 2-3 days, and each quantity of exchanged water is full Chi Shui 1/3, management after the 60th day puts after seedling the management of 30-60 days with mid-term stage, omnidistance probiotics (EM bacterium, the photosynthetic bacteria) regulating water quality that uses, puts seedling and uses EM bacterium in 1-30 days, puts seedling and within the 30th day, uses Bacillus subtillis later, within general 15-20 days, uses once, the bottom aerator of one 5.5 kilowatts is joined in every 9 mu of ponds, arranges 70 bottom gas dishes at the bottom of every 4.5 mu of pools, and bottom micro-pore oxygenation will be opened also whole process from the seed rearing stage and use, and make the bottom in whole pond fully obtain oxygenation effect, the cultivation later stage is started aerator simultaneously, and 4, a pond, guarantees that oxygen in water is not less than 4 mg/litre, guarantees that the nitrite in water quality can not raise, put seedling the 30th day the-the 60th day, carried out the sterilization of full pond every 10-15 days with bleaching powder 1-2 ppm, also can carry out the sterilization of full pond with the camellia oleosa seed cake of 5-10 ppm, generally, through the cultivation of 2 wheat harvesting periods, shrimp body specification reaches 120-140/kilograms just can start harvesting listing, first adopts shrimp cage to catch to stay greatly little, through too much fishing for day, just cleans up the pond and fishes for, first batch of first harvesting time of culture of Penaeus vannamei is 20-25 day in May, and last batch of is cleaned up the pond 10-20 day June harvesting time, second batch of first harvesting time of culture of Penaeus vannamei is 5-10 day in October, and last batch of is cleaned up the pond 18-20 day October harvesting time, it is 28-30 day in November that the 3rd batch of Macrobrachium rosenbergii cultivates first harvesting time, and last batch of is cleaned up the pond 18-25 day December harvesting time.
The present invention with respect to the outstanding feature of prior art is: 1) take full advantage of pond green house and support the shrimp time, how greenhouse, pond has supported shrimp one batch than usual, improve greenhouse availability, obtain good benefit: per mu yield 2000-2500 jin, ten thousand yuan of per mu yield value 4.5-5.0, ten thousand yuan of mu profit 2.5-2.8, have improved the profit of 7000-8000 unit/mu than two batches of cultivation; 2) these three batches of aquaculture models have taken into full account the climatic characteristic in area, Jiangsu and Zhejiang Provinces and the growth characteristic of shrimps in culture under the condition that does not need manually to heat, be the first half of the year temperature progressively rise, be applicable to culture of Penaeus vannamei growth, the temperature that affects along with cold wave after late October progressively declines, and the adaptability of Macrobrachium rosenbergii and cold tolerance are stronger, cultivation easily obtains successfully, and therefore this pattern success rate is very high; 3) the method provides the special measures such as support in combination, the hut grain bin that a whole set of cultural technique enters three batches of culturing time spaces, associating oxygenation, facts have proved and has obtained good culture efficiency.The method.In addition, the method is easy and simple to handle, method is practical, is easy to be accepted and promote.
Embodiment
1, sterilization is built and is leveled in greenhouse, pond: large span flexible wire ropes plastic tunnel greenhouse is built in top, pond, each pond area 4-5 mu, and then in plastic greenhouse, build a hut, at the little Chi of 300-400 square metre of one jiao, the pond of booth excavation, depth of water 1.0-1.2 rice, at the bottom of pond, stay a small amount of mud, top, native pond covers layer of plastic film again, and has been equipped with oxygen increasing equipment; Putting every mu of the previous moon in a suitable place to breed in seed sterilizes with quicklime 100-150 kilogram of full pond; Seed store up through the hut that schedules to last 15-20 days support after (Macrobrachium rosenbergii seed can be foster at the outer Chi Tun of booth cultivation), put into pond and carry out aquaculture management.
2, put seedling time and density for three batches: first batch of Penaeus Vannmei put seedling 18-22 in March day in pond, specification 1.5-2.0cm, puts seedling 5-6 ten thousand tails for every mu; Second batch of Penaeus Vannmei put seedling 1-6 in July day in pond, specification 1.5-2.0cm is put seedling 5-7 ten thousand tails for every mu; The 3rd batch of Macrobrachium rosenbergii put seedling 20-22 in October day in pond, specification 5.0-7.0cm is put seedling 3-4 ten thousand tails for every mu.
3, throw and raise: first and regrowth hair Penaeus Vannmei put 1-15 days after seedling, if food organisms are abundant, the feed of just need not throwing something and feeding starts the feed of throwing something and feeding for 15 days later, if food organisms deficiency (substantially can't see food organisms in water body), just advances to and puts the 5-8 days manufactured feeds of throwing something and feeding after seedling; And the 3rd batch of Macrobrachium rosenbergii put the manufactured feed that just directly starts to throw something and feed after seedling, bait throwing in every day 2 times during this, throwing the amount of raising is 8%-10% of shrimp body weight, the fresh and alive feed of also can throwing something and feeding 1 time every 2-3 days; Put 30-60 days after seedling, prawn individuality is grown up gradually, and at this moment the algae of the Chi Shuizhong that no longer ingests should strengthen and throw the amount of raising, and throws something and feeds every day 4 times, and daily ration, feeding quantity is 5% of shrimp body weight; Put the management phase of seedling after 60 days, throw something and feed 5-6 every day, and throwing the amount of raising is 3%-4% of shrimp body weight.
4, water quality management: progressively add water if put seedling 1-30 God, to improve water quality and increase water level, if water colour is too clear, must add chemical fertilizer or fertilizer, make Chi Shui keep yellow green or dark brown; 30-60 days, changed water 1 time every 2-3 days, and each quantity of exchanged water is full Chi Shui 1/3; Management after the 60th day puts after seedling the management of 30-60 days with mid-term stage; Omnidistance probiotics (EM bacterium, the photosynthetic bacteria) regulating water quality that uses, puts seedling and uses EM bacterium in 1-30 days, puts seedling and within the 30th day, uses Bacillus subtillis later, within general 15-20 days, uses once.
5, associating oxygenation: the bottom aerator of 5.5 kilowatts is joined in every 9 mu of ponds, arranges 70 bottom gas dishes at the bottom of every 4.5 mu of pools, bottom micro-pore oxygenation will be opened also whole process from the seed rearing stage and use, and make the bottom in whole pond fully obtain oxygenation effect; The cultivation later stage is started aerator simultaneously, and 4, a pond, guarantees that oxygen in water is not less than 4 mg/litre, guarantees that the nitrite in water quality can not raise.
6, disease control: put seedling the 30th day the-the 60th day, carried out the sterilization of full pond every 10-15 days with bleaching powder 1-2 ppm, also can carry out the sterilization of full pond with the camellia oleosa seed cake of 5-10 ppm.
7, three batches of fishing times: generally through the cultivation of 2 wheat harvesting periods, shrimp body specification reach 120--140 only/kilogram just can start harvesting listing, first adopt shrimp cage to catch to stay greatly little, through too much fishing for day, just clean up the pond and fish for; First batch of first harvesting time of culture of Penaeus vannamei is 20-25 day in May, and last batch of is cleaned up the pond 10-20 day June harvesting time; Second batch of first harvesting time of culture of Penaeus vannamei is 5-10 day in October, and last batch of is cleaned up the pond 18-20 day October harvesting time; It is 28-30 day in November that the 3rd batch of Macrobrachium rosenbergii cultivates first harvesting time, and last batch of is cleaned up the pond 18-25 day December harvesting time.
Within 2013, Shanghai Jinshan area is implemented 2 batches of Penaeus Vannmeis of pond greenhouse cultivation and 1 batch of cultivation Macrobrachium rosenbergii according to the method described above, and situation, in Table 1-3, obtains good income, the annual per mu yield that obtains: 2200 jin, and per mu yield value: 53300 yuan; 27300 yuan of mu profits.
First batch of first harvesting time of greenhouse Penaeus Vannmei is 2013-5-21, average specification: 55 tail/jin; The time of cleaning up the pond is 2013-6-25, last batch of specification: 45 tail/jin.First batch show that through gathering per mu yield is after forming: 750 pounds/acre, cause is the listing of early stage shrimp, therefore on average sell with the price of 26 yuan/jin, per mu yield reaches 19500 yuan, profit reaches 10000 yuan/mu, have a net increase of profit 3000-3500 unit, situation very considerable (table 1) than old-fashioned cultural technique mu in the past.
Second batch of nearly 3 months greenhouse culture of Penaeus vannamei time cycle, first harvesting time is 2013-10-5, average specification: 50 tail/jin; The time of cleaning up the pond is 2013-10-20, last batch of specification: 43 tail/jin.Second batch show that through gathering per mu yield is after forming: 850 pounds/acre, because being the peak period of prawn listing, therefore on average sell with the price of 20 yuan/jin, per mu yield reaches 17000 yuan, and profit reaches 9000 yuan/mu, the profit fewer (table 2) than first batch.
The 3rd batch of Macrobrachium rosenbergii cultivation, during second batch of culture of Penaeus vannamei, first outside booth cultivation, Chi Tun supports Macrobrachium rosenbergii seed.The general pond crayfish seed time of putting in a suitable place to breed is that early October is to late October, every mu of booth is put seedling 3.5 ten thousand tail left and right, previously put into the pond, grain bin of 8 mu and carried out shrimp seedling foster 30 days temporarily, wait until that in early and middle ten days booth in October, Penaeus Vannmei harvesting is complete, lead and catch pond crayfish seed and put into booth with close net immediately, carry out water quality adjustment in booth, oxygenation, throwing simultaneously and the management work such as raise, ensure the normal growth of pond crayfish, seal booth when mercury dropped to mid or late October, carry out heat insulation work, per mu yield reaches 16800 yuan, and profit reaches 8300 yuan/mu (table 3).
Table 1, first batch of greenhouse culture of Penaeus vannamei information slip.
The main kind of supporting |
Penaeus Vannmei |
Area |
9 mu/canopy |
Put the seedling time |
On March 20th, 2013 |
Put seedling density |
60000 tail/mus |
Put seedling specification |
1.5-2 centimetre/tail |
Seed source |
Hainan (Fengxian agriculture committee vannamei boone) |
Feed resource |
The red horse feed in Shanghai |
Mu feeding volume |
700 pounds/acre |
The highest, minimum water temperature |
High 33 DEG C low 20 DEG C |
PH value scope |
8.5 |
Nitrite |
0.1mg/L |
Ammonia nitrogen |
0.3 |
Incidence |
Nothing |
Medicining condition |
EM bacterium photosynthetic bacteria |
First harvesting time |
On May 21st, 2013 |
Clean up the pond the time |
On June 25th, 2013 |
Per mu yield |
750 pounds/acre of shrimps |
Average unit price |
26 yuan |
Per mu yield value |
19500 yuan |
Mu profit |
10000 yuan/mu |
Table 2, second batch of greenhouse culture of Penaeus vannamei information slip.
The main kind of supporting |
Penaeus Vannmei |
Area |
9 mu/canopy |
Put the seedling time |
On July 3rd, 2013 |
Put seedling density |
6.5 ten thousand tail/mus |
Put seedling specification |
1.5-2 centimetre/tail |
Seed source |
Hainan (Fengxian agriculture committee vannamei boone) |
Feed resource |
The red horse feed in Shanghai |
Mu feeding volume |
800 pounds/acre |
The highest, minimum water temperature |
High 34 DEG C low 28 DEG C |
PH value scope |
8.5 |
Nitrite |
0.15mg/L |
Ammonia nitrogen |
0.3 |
Incidence |
Nothing |
Medicining condition |
EM bacterium photosynthetic bacteria |
First harvesting time |
On October 3rd, 2013 |
Clean up the pond the time |
On October 20th, 2013 |
Per mu yield |
850 pounds/acre of shrimps |
Average unit price |
20 yuan |
Per mu yield value |
17000 yuan |
Mu profit |
9000 yuan/mu |
Table 3, the 3rd batch of greenhouse Macrobrachium rosenbergii cultivation information slip.
The main kind of supporting |
Macrobrachium rosenbergii |
Area |
9 mu/canopy |
Put the seedling time |
On October 21st, 2013 |
Put seedling density |
3.5 ten thousand tail/mus |
Put seedling specification |
5-7 centimetre/tail (supporting temporarily seedling) |
Seed source |
Shen Cao special aquatic products Co., Ltd |
Feed resource |
The red horse feed in Shanghai |
Mu feeding volume |
850 pounds/acre |
The highest, minimum water temperature |
High 28 DEG C low 22 DEG C |
PH value scope |
8.5 |
Nitrite |
0.15mg/L |
Ammonia nitrogen |
0.3 |
Incidence |
Nothing |
Medicining condition |
EM bacterium photosynthetic bacteria |
First harvesting time |
On November 30th, 2013 |
Clean up the pond the time |
On December 18th, 2013 |
Per mu yield |
600 pounds/acre of shrimps |
Average unit price |
28 yuan |
Per mu yield value |
16800 yuan |
Mu profit |
8300 yuan/mu |