Clam worm culturing metod
Technical field
The present invention relates to a kind of clam worm culturing metod.
Background technology
Nereidiformia is under the jurisdiction of Annelida, polychaeta, has another name called extra large leech, marine borer, extra large centipede etc.Clam worm is the main bait of albacore, shrimp, soft-shelled turtle, shellfish etc., also can be used as eel and fabulous additive and the bait of other special aquatic products class manufactured feed.The clam worm delicious flavour of breeding period, nutritious contains more unsaturated fatty acid-eicosapentaenoic acid (EPA), have regulate blood fat, prevention cardiovascular and cerebrovascular disease, bring high blood pressure down, tonifying yin void, the flat medical value of breathing heavily of coughing.Yet long-term a large amount of people has made the natural resources slump of disastrous proportions of clam worm for digging; can not satisfy human wants far away; therefore the cultural method of clam worm of conducting a research both can obtain good economic benefit, again to the protection of natural resources, keep the ecological balance and play important effect.
Summary of the invention
The object of the present invention is to provide a kind of clam worm culturing metod, this method not only is convenient to implement, the economic benefit height, and to the protection of natural resources, keep the ecological balance and play important effect.
Clam worm culturing metod of the present invention, its technical scheme is as follows:
One, raise seedling period culturing: selective maturation, physique stalwartness, complete, sensitive male and female parent, carry out artificial insemination, the bucket that afterwards fertilized egg putting into is equipped with seawater is cultivated, grow up to the young after 3-5 days, when promptly growing 3 pairs of pin, be bait with algae (as spirulina etc.) this moment, further breed;
Two, larya culturing: treat the young grow 5-6 to pin after, change over to and culture in the pond, be bait with algae, fishing powder, carry out water-flowing type aquaculture; After 10 days, change one day into and advance water three times, continue soaked 8-12 minute at every turn, after discharge water, during be bait with the fishing powder, grow up to middle body after 2 months;
Three, midbody culturing: behind the body, changing in the breeding trough in waiting to grow up to, is bait with algae, fishing powder, cultures to adult.
Major advantage of the present invention is: one, be rich in new meaning, reasonable in design; Two, be convenient to enforcement, economic benefit height; Three, can play the effect of protecting national resource, keep the ecological balance.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 (a) is the pond structure schematic diagram, and Fig. 1 (b) is the screen pack profile.
Fig. 2 is the breeding trough structural representation.
Shown in the figure 1 represents water inlet, 2 expression discharge outlet, and the pond is contained in 3 expressions, 4 expression screen packs, 5 expression fine sands, 6 expression young clam worms, 7 expression particle sand, body clam worm in 8 expressions, groove is contained in 9 expressions.
Embodiment
The embodiment of the invention is characterised in that the characteristics according to the tide fluctuation, through the several times sea water immersion, it is grown be adult.The concrete steps of the embodiment of the invention are as follows:
One, raise seedling period culturing: selective maturation, physique stalwartness, complete, sensitive male and female parent, carry out artificial insemination, the bucket that afterwards fertilized egg putting into is equipped with seawater is cultivated, for the fertilized egg anoxic that prevents to sink to the bottom, described fertilized egg will often be stirred between the puberty, grew up to the young after 3-5 days, when promptly growing 3 pairs of pin, be bait with algae (as spirulina etc.) this moment, further breed;
Two, larya culturing: treat the young grow 5-6 to pin after, change over to and culture in the pond [Fig. 1 (a)], be bait with algae, fishing powder, carry out water-flowing type aquaculture; After 10 days, change one day into and advance water three times, continue soaked 8-12 minute at every turn, after discharge water, during be bait with the fishing powder, grow up to middle body after 2 months;
Three, midbody culturing: behind the body, changing in the breeding trough [Fig. 1 (b)] in waiting to grow up to, is bait with algae, fishing powder, cultures to adult.
Described breed pond [Fig. 1 (a)] is provided with water inlet [1], discharge outlet [2], contains pond [3] and two-layer filter screen [4], described larya culturing is young clam worm [6] to be placed to contain lining, pond [3] diameter be 0.05-0.15 centimetre fine sand [5], described filter screen [4] is divided into the upper and lower of fine sand [5] layer, run off to prevent clam worm, at last also will be on upper wire the layer overlay diameter be 0.25-0.10 centimetre particle sand [7], carrying out the continuous-flow type circulation with seawater cultivates, or when adding sea water immersion, water level should surpass about Shamian Island 3.0-3.5 centimetre, also will carry out oxygenation during this.
Described breeding trough [Fig. 2] is provided with water inlet [1], discharge outlet [2], contains groove [9] and one deck filter screen [4], described midbody culturing is middle body clam worm [8] to be placed to contain groove [9] lining diameter be 0.25-0.10 centimetre particle sand [7], described filter screen [4] is located at the below of particle sand [7] layer, run off to prevent clam worm, and according to the rule of tide fluctuation, every day, each soaked time remaining was no more than 1 hour through the several times sea water immersion, promptly grew up to adult after 2-2.5 month.
The present invention is rich in new meaning, reasonable in design, not only be convenient to implement, the economic benefit height, and to the protection of natural resources, keep the ecological balance and play important effect, have bigger application and popularization value.