Fresh-water fishes high-yielding non-pollution cultural method
Technical field
The present invention relates to technical field of aquaculture, particularly relate to a kind of fresh-water fishes high-yielding non-pollution cultural method.
Background technology
Fresh-water fishes refer to inhabit the Fish of fresh water, of a great variety, account for about the 40% of total Fish.China's most area is in temperate zone and subtropical zone, has a moderate climate, and rainfall is abundant, is freshwater fish culturing big country.In recent years, along with fast development and the raising of people's living standard of China's economy, increasing the demand of Fish year by year, this promotes aquaculture to present intensive development trend, especially freshwater fish culturing.But ignoring the quality of fish owing to fisherman the most only payes attention to quantity, on the other hand lack science, the cultural technique of specialty so that the quality of fresh-water fishes is low, edible safety declines.
Summary of the invention
The technical problem that present invention mainly solves is to provide the cultural method of a kind of fresh-water fishes high-yielding non-pollution, it is possible to the fresh-water fishes of solution intensive style cultivation are abused, Drug abuse, and the quality of fish is low, edible uneasy congruent problem, and is effectively improved the yield of fish.
For solving above-mentioned technical problem, the technical scheme that the present invention uses is: provides the cultural method of a kind of fresh-water fishes high-yielding non-pollution, comprises the following steps:
(1) culture pond requires: away from polluting, irrigation and drainage are convenient, smooth at the bottom of the pool, the sterilization and keep the mud of 15cm of cleaning up the pond;
(2) pour water, water transfer matter: pouring into the clear water that the degree of depth is 1.5m in culture pond, and the aquaculture special bio that discharges suitable number is fertile or bio-feritlizer preparation, adjusting water quality is glossy dark green mulberry or dark brown;
(3) fingerling selects: select the fingerling the most healthy and the strongest, disease resistance is strong, including Mylopharyngodon piceus, Ctenopharyngodon idellus, Hypophthalmichthys molitrix, Aristichthys nobilis, Cyprinus carpio and Carassius auratus.
(4) fish body sterilization: the fingerling selected in step (3) is placed in the edible salt water of 5% mass concentration sterilization 10min;
(5) Rational Stocking: by fingerling sterilized in step (4) in Mylopharyngodon piceus: Ctenopharyngodon idellus: Hypophthalmichthys molitrix: Aristichthys nobilis: Cyprinus carpio: Carassius auratus is that the ratio of 1:5:3:1:2:4 is put in a suitable place to breed in the culture pond adjusting water quality in step (2), and breeding density is 1500 tails/mu;
(6) raise: throw in latter 20 days, a certain amount of man-made feeds of throwing something and feeding every day, when fish length to 300g/ tail, enrich farm manure;After applying fertilizer 15 days, within every 2 days, execute man-made feeds;
(7) Water-quality control: after fingerling stocking, adds a water in every 5~20 days, and quantity of exchanged water is 30~50cm;
(8), after adding water, in culture pond, add a certain amount of aquaculture special-purpose fertilizer and yeast every time;
(9) appropriateness is fished for: when fish length to 1500~2000g/ tail, fishes for weekly a big fingerling of breeding density, it is ensured that have enough fish movement spaces in culture pond.
In a preferred embodiment of the present invention, the pollution in described step (1) refers to " three industrial wastes ", sanitary sewage, medical sewage and contaminated running water.
In a preferred embodiment of the present invention, in described step (6), the injected volume of described man-made feeds is 3000mg/ mu, divides and throws something and feeds for early, middle and late three times, and three feeding volumes are 2:3:1.
In a preferred embodiment of the present invention, in described step (9), the described fish amount fished for weekly is 100~300 tails/mu.
In a preferred embodiment of the present invention, described fishing output is by Mylopharyngodon piceus: Ctenopharyngodon idellus: Hypophthalmichthys molitrix: Aristichthys nobilis: Cyprinus carpio: Carassius auratus is that the quantity of 1:5:3:1:2:4 is fished for.
The invention has the beneficial effects as follows: the cultural method of the present invention a kind of fresh-water fishes high-yielding non-pollution, being fed by fish pond and the sterilization of fish body and science, effectively reduce the consumption of medicine, man-made feeds, the fresh-water fishes quality and safety cultivated is high, pollution-free;The present invention raises together with by living in the fingerling of different Larger water depths, numerous in variety, the space of different Larger water depths in being effectively utilized fish pond, by fishing in batches in order, not only increases cultivation quantity and increases the income of fisherman.
Detailed description of the invention
Below presently preferred embodiments of the present invention is described in detail, so that advantages and features of the invention can be easier to be readily appreciated by one skilled in the art, thus protection scope of the present invention is made apparent clear and definite defining.
The embodiment of the present invention includes:
The cultural method of a kind of fresh-water fishes high-yielding non-pollution, comprises the following steps:
(1) culture pond requires: away from " three industrial wastes ", sanitary sewage, medical sewage and the pollution of running water etc. of getting dirty, irrigation and drainage are convenient, smooth at the bottom of the pool, clean up the pond sterilization with quick lime and Testa Tritici etc., finally putting into the mud of 15cm at the bottom of the pool, using the soil as algal grown;
(2) pour water, water transfer matter: pouring into the clear water that the degree of depth is 1.5m in culture pond, and the aquaculture special bio that discharges suitable number is fertile or bio-feritlizer preparation, promotes phytoplankton and the growth of algae in fish pond, adjusting water quality is glossy dark green mulberry or dark brown;
(3) fingerling selects: select the fingerling the most healthy and the strongest, disease resistance is strong, including Mylopharyngodon piceus, Ctenopharyngodon idellus, Hypophthalmichthys molitrix, Aristichthys nobilis, Cyprinus carpio and Carassius auratus.
(4) fish body sterilization: the fingerling selected in step (3) is placed in the edible salt water of 5% mass concentration sterilization 10min;
(5) Rational Stocking: by fingerling sterilized in step (4) in Mylopharyngodon piceus: Ctenopharyngodon idellus: Hypophthalmichthys molitrix: Aristichthys nobilis: Cyprinus carpio: Carassius auratus is that the ratio of 1:5:3:1:2:4 is put in a suitable place to breed in the culture pond adjusting water quality in step (2), and breeding density is 1500 tails/mu;
(6) raising: throw in latter 20 days, every day throws something and feeds man-made feeds according to the quantity of 3000mg/ mu, point throws something and feeds for early, middle and late three times, three feeding volumes are 2:3:1, when fish length to 300g/ tail, enrich farm manure, to promote the growth of natural bait, such as Lumbricus, Kattapillar, freshwater mussel spiral shell, pasture and water etc.;After applying fertilizer 30 days, now fish pond is contained within a certain amount of natural bait, can reduce the injected volume of man-made feeds, changes into every 2 days executing man-made feeds;
(7) Water-quality control: after fingerling stocking, according to season and the situation in fish pond, adds a water in every 5~20 days, and quantity of exchanged water is 30~50cm;
(8), after adding water, in culture pond, add a certain amount of aquaculture special-purpose fertilizer and yeast every time;
(9) appropriateness is fished for: when fish length to 1000~2000g/ tail, fish for weekly a big fingerling of breeding density, on the one hand ensure there are enough fish movement spaces in culture pond, amount of fishing is 100~300 tails/mu, and fishing output is by Mylopharyngodon piceus: Ctenopharyngodon idellus: Hypophthalmichthys molitrix: Aristichthys nobilis: Cyprinus carpio: Carassius auratus is that the quantity of 1:5:3:1:2:4 is fished for.
The fresh-water fishes cultivated as stated above, fish numerous in variety, the space of different Larger water depths in being effectively utilized fish pond;Fed by fish pond and the sterilization of fish body and science, effectively reducing the consumption of medicine, man-made feeds, the fresh-water fishes quality and safety cultivated is high, pollution-free, and quantity is many, and can fish for the most in batches, improve the effective rate of utilization in fish pond, increase the income of fisherman.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the invention content to be made or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, the most in like manner it is included in the scope of patent protection of the present invention.