Summary of the invention
Goal of the invention: the invention provides a kind of fresh water ecological cultivation method of Penaeus Vannmei, the Penaeus Vannmei fast growth that pond is raised, survival rate is high.
Technical scheme: the fresh water ecological cultivation method of Penaeus Vannmei of the present invention, comprises following steps: the whole pool: thoroughly remove the mud in pond, filling cracks and leak;
Clean up the pond: before shrimp seedling is put in a suitable place to breed 10~15 days, after will shrimp crab protectant dissolving, splash to full pond;
Kind of planting submerged plant: 4~6 submerged plants of every square metre of plantation in surrounding phytal zone, pond, submerged plant to the area coverage in whole pond 40~50%;
Water filling: in pond, inject 2~3 meters through sterilization after fresh water;
Cultivate water flea: put in a suitable place to breed before 2 weeks at shrimp seedling, in pond, throw in the pig manure of 250~300 kilograms every mu, regularly stir with breeding water flea;
Desalination shrimp seedling: the shrimp seedling of 0.5~0.8 centimetre that transport is come is put in the seawater that configured in advance is good, the seawater error of the salinity of this seawater and fortune shrimp seedling is 0~3, the temperature difference is at 0~2 degree Celsius, treat shrimp seedling normal activity, after conforming, increase by 10~20% fresh water of seawater total amount every day, through 8~10 days, in the time that salinity drops to below 3 ‰, emerge;
Put shrimp seedling in a suitable place to breed: at the beginning of by the end of May~6 months, in pond, water temperature stability is in the time of 20~23 degrees Celsius, select body surface cleaning, glossy, appendage is complete, tail fan separately, two shrimp seedlings that antennas often close up and can move about against the current, first it is carried out disinfection, then put in a suitable place to breed in pond with the quantity of every mu 5~60,000 tails;
Rationally throwing something and feeding: the prawn slice of throwing something and feeding in a week after putting in a suitable place to breed are main, and it is main after one week, throwing something and feeding containing the bait of 25~35% crude protein, respectively throws something and feeds once in every morning 8~9 o'clock and afternoon 17~18, and afternoon, feeding capacity was 70~80% of whole day feeding capacity; In the time that shrimp grows to 2.5~3.5 centimetres, increase and throw something and feed a night; When shrimp grows to after 10 centimetres, increase and throw something and feed twice night;
Wheel catches out the pool: mid-August, pick out every other month 10 centimetres of above shrimp supply markets, to all fishing for up by the end of October.
In the step of cleaning up the pond, stirring and dissolving after shrimp crab protectant mixes with 10~20 times of saline solutions, leaves standstill and splashes to full pond after 1 hour; The concentration of described saline solution is 8 ‰ to 10 ‰; Described submerged plant is shrimp algae, withered grass, hydrilla verticillata, p.malaianus or waterweed.
Beneficial effect: the present invention uses shrimp crab protectant to clean up the pond can kill for Penaeus Vannmei the harmful organisms such as fish, batrachia, leech, can not damage by prawn itself simultaneously; In pond, plant planting submerged plant, can, for shrimp provides the environment of perching and shelling, can also serve as the natural bait of shrimps on the one hand, can purify water on the other hand, increase dissolved oxygen in water, be beneficial to the existence of shrimp, can also be for shrimp provides shady and cool habitat in the time that summer temp is too high; Water flea is small-sized flotation crustaceans, in pond, is evenly distributed, and not polluted water, can also provide nutritious bait for shrimps, and the water flea speed of moving about is slow, is also convenient to shrimp predation; The method that the present invention desalinates shrimp seedling in addition can allow shrimp seedling adapt to fresh water environment better, improves the survival rate of putting rear shrimp seedling in a suitable place to breed; Reasonably Feeding time and feeding volume can promote shrimp seedling to grow up fast, to increase economic efficiency.
Embodiment
Embodiment 1:
The whole pool: thoroughly remove the mud in pond, filling cracks and leak.
Clean up the pond: before shrimp seedling is put in a suitable place to breed 10 days, stirring and dissolving after the saline solution that is 8 ‰ with 10 times of concentration according to the appropriate shrimp crab protectant of the large young pathbreaker in pond mixes, and leave standstill and splash to full pond after 1 hour, to kill the harmful organisms of the shrimps such as fish, batrachia, leech.
Kind of planting submerged plant: the submerged plant such as 4 waterweeds of every square metre of plantation or shrimp algae, withered grass, hydrilla verticillata, p.malaianus in surrounding phytal zone, pond, ensure submerged plant to the area coverage in whole pond 40%; Submerged plant can provide the environment of perching and shelling for shrimp on the one hand, can also serve as the natural bait of shrimps, can purify water on the other hand, increase dissolved oxygen in water, be beneficial to the existence of shrimp, can also be for shrimp provides shady and cool habitat in the time that summer temp is too high.
Water filling: inject 2 meters of dark fresh water in pond, and use quicklime and camellia bran to sterilize to fresh water, every mu of 60 kilograms of quicklimes, 40 kilograms of camellia brans, the night before last is said the immersion of camellia bran in sterilization, within second day, first on the water surface, spreads quicklime, after 3 hours, the more full pool camellia bran of splashing.
Cultivate water flea: put in a suitable place to breed before 2 weeks at shrimp seedling, prepare nutritious bait will to shrimp seedling, water flea is small-sized flotation crustaceans, in pond, be evenly distributed, not polluted water, the speed of moving about is slow, be convenient to the predation of shrimp seedling, so before shrimp seedling is put in a suitable place to breed, can first throw in the pig manure of 250 kilograms every mu in pond, regularly stir with breeding water flea.
Desalination shrimp seedling: the shrimp seedling of 0.5~0.8 centimetre that transport is come is put in the seawater that configured in advance is good; the seawater error of the salinity of this seawater and fortune shrimp seedling is 0~3 ‰; the temperature difference is at 0~2 degree Celsius; treat shrimp seedling normal activity; after conforming; increase by 10% fresh water of seawater total amount every day, through 10 days, in the time that salinity drops to 3 ‰, emerge.
Put shrimp seedling in a suitable place to breed: by the end of May, in pond, water temperature stability is in the time of 20~23 degrees Celsius, select body surface cleaning, glossy, appendage is complete, tail fan separately, two shrimp seedlings that antennas often close up and can move about against the current, first using salinity is that 6 ‰ salt solution carries out disinfection to it, is then put in a suitable place to breed in pond with the quantity of every mu of 50,000 tails.
Rationally throw something and feed: the prawn slice of throwing something and feeding in a week after putting in a suitable place to breed are main, and it is main after one week, throwing something and feeding containing the bait of 25% crude protein, respectively throw something and feed once in 17 of 8 o'clock every mornings and afternoons, afternoon, feeding capacity was 70% of whole day feeding capacity; In the time that shrimp grows to 2.5~3.5 centimetres, increase and throw something and feed a night; When shrimp grows to after 10 centimetres, increase and throw something and feed twice night.
Wheel catches out the pool: mid-August, pick out every other month 10 centimetres of above shrimp supply markets, to all fishing for up by the end of October.
Embodiment 2:
The whole pool: thoroughly remove the mud in pond, filling cracks and leak.
Clean up the pond: before shrimp seedling is put in a suitable place to breed 15 days, stirring and dissolving after the saline solution that is 10 ‰ with 15 times of concentration according to the appropriate shrimp crab protectant of the large young pathbreaker in pond mixes, and leave standstill and splash to full pond after 1 hour.
Kind of planting submerged plant: 5 waterweeds of every square metre of plantation in surrounding phytal zone, pond, waterweed to the area coverage in whole pond 50%.
Water filling: inject 2.5 meters of dark fresh water in pond, and use quicklime and camellia bran to sterilize to fresh water, every mu of 70 kilograms of quicklimes, 45 kilograms of camellia brans, the night before last is said the immersion of camellia bran in sterilization, within second day, first on the water surface, spreads quicklime, after 4 hours, the more full pool camellia bran of splashing.
Cultivate water flea: put in a suitable place to breed before 2 weeks at shrimp seedling, in pond, throw in the pig manure of 300 kilograms every mu, regularly stir with breeding water flea.
Desalination shrimp seedling: the shrimp seedling of 0.5~0.8 centimetre that transport is come is put in the seawater that configured in advance is good; the seawater error of the salinity of this seawater and fortune shrimp seedling is 0~3 ‰; the temperature difference is at 0~2 degree Celsius; treat shrimp seedling normal activity; after conforming; increase by 15% fresh water of seawater total amount every day, through 9 days, in the time that salinity drops to 2 ‰, emerge.
Put shrimp seedling in a suitable place to breed: by the end of May, water temperature stability is in the time of 20~23 degrees Celsius in pond, and first using salinity is the sterilization of 5 ‰ salt solution prawn seedling, is then put in a suitable place to breed in pond with the quantity of every mu of 5.5 ten thousand tails.
Rationally throw something and feed: the prawn slice of throwing something and feeding in a week after putting in a suitable place to breed are main, and it is main after one week, throwing something and feeding containing the bait of 30% crude protein, respectively throw something and feed once in 18 of 9 o'clock every mornings and afternoons, afternoon, feeding capacity was 75% of whole day feeding capacity; In the time that shrimp grows to 2.5~3.5 centimetres, increase and throw something and feed a night; When shrimp grows to after 10 centimetres, increase and throw something and feed twice night.
Wheel catches out the pool: mid-August, pick out every other month 10 centimetres of above shrimp supply markets, to all fishing for up by the end of October.
Embodiment 3:
The whole pool: thoroughly remove the mud in pond, filling cracks and leak.
Clean up the pond: before shrimp seedling is put in a suitable place to breed 15 days, stirring and dissolving after the saline solution that is 9 ‰ with 20 times of concentration according to the appropriate shrimp crab protectant of the large young pathbreaker in pond mixes, and leave standstill and splash to full pond after 1 hour.
Kind of planting submerged plant: 6 waterweeds of every square metre of plantation in surrounding phytal zone, pond, waterweed to the area coverage in whole pond 45%.
Water filling: inject 3 meters of dark fresh water in pond, and use quicklime and camellia bran to sterilize to fresh water, every mu of 75 kilograms of quicklimes, 50 kilograms of camellia brans, the night before last is said the immersion of camellia bran in sterilization, within second day, first on the water surface, spreads quicklime, after 4 hours, the more full pool camellia bran of splashing.
Cultivate water flea: put in a suitable place to breed before 2 weeks at shrimp seedling, in pond, throw in the pig manure of 250 kilograms every mu, regularly stir with breeding water flea.
Desalination shrimp seedling: the shrimp seedling of 0.5~0.8 centimetre that transport is come is put in the seawater that configured in advance is good; the seawater error of the salinity of this seawater and fortune shrimp seedling is 0~3 ‰; the temperature difference is at 0~2 degree Celsius; treat shrimp seedling normal activity; after conforming; increase by 20% fresh water of seawater total amount every day, through 8 days, in the time that salinity drops to 1 ‰, emerge.
Put shrimp seedling in a suitable place to breed: at the beginning of 6 months, water temperature stability is in the time of 20~23 degrees Celsius in pond, and first using salinity is the sterilization of 4 ‰ salt solution prawn seedling, is then put in a suitable place to breed in pond with the quantity of every mu of 60,000 tails.
Rationally throw something and feed: the prawn slice of throwing something and feeding in a week after putting in a suitable place to breed are main, and it is main after one week, throwing something and feeding containing the bait of 35% crude protein, respectively throw something and feed once in 17 of 9 o'clock every mornings and afternoons, afternoon, feeding capacity was 80% of whole day feeding capacity; In the time that shrimp grows to 2.5~3.5 centimetres, increase and throw something and feed a night; When shrimp grows to after 10 centimetres, increase and throw something and feed twice night.
Wheel catches out the pool: mid-August, pick out every other month 10 centimetres of above shrimp supply markets, to all fishing for up by the end of October.
Because the fresh water ecological cultivation method of Penaeus Vannmei in the respective embodiments described above does not use chemicals as far as possible, do not change in a large number water, high to ensure cultivation Penaeus Vannmei survival rate out, resistance against diseases is strong, fast growth, mouthfeel is more delicious, to obtain larger economic benefit.
Persons of ordinary skill in the art may appreciate that the respective embodiments described above are to realize specific embodiments of the invention, and in actual applications, can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.