Breed method in the middle of the sea cucumber
Technical field
The invention belongs to technical field of aquaculture, relate to the raising method of sea cucumber, is to breed method in the middle of a kind of sea cucumber specifically.
Background technology
At present, the method for breeding in the middle of China sea cucumber mostly is indoor centre and breeds, for reaching sea cucumber growth thermophilic, need carry out water temperature and regulate, method mostly is the burning boiler intensification or uses underground sea water, and this kind method expends the energy, artificial, and complicated operation, management inconvenience, labour intensity is bigger.
Breed method in the middle of how studying a kind of sea cucumber, can save coal, electric energy consumption and labour cost, convenient management reduces labour intensity, and can improve incubation rate, is particularly useful for not having indoor sea cucumber nursery of supporting condition temporarily.This has become the technical problem that needs to be resolved hurrily at present.
Summary of the invention
The objective of the invention is the problem at the prior art existence, and breed method in the middle of a kind of sea cucumber is provided, can save the energy and labour cost, convenient management reduces labour intensity, and can improve incubation rate.
The objective of the invention is to be achieved through the following technical solutions: breed method in the middle of a kind of sea cucumber, it is characterized in that comprising input, the finishing period management of selecting to support ginseng pond, pond transformation, seedling;
Wherein, selection is supported ginseng pond mode and is: when middle tide band or low tide band selection neap, guarantee 1~1.5 meter of retaining, and non-leakage pond; Must not there be pollution, especially oil pollution in selected sea area; Salinity is not less than 28 ‰, and no river injects; Culture that the pond is respectively stayed one to advance, emptying gate;
The pond reforming mode is: at first, lay and fix 35~45 order polythene nets in pond bottom, in order to prevent that harmful organisms from entering sea cucumber and breeding the zone, re-use bamboo pole and enclose 35~45 order polythene nets, the pond is divided into several regions, the purse seine height exceeds the water surface 3~5cm, and is last, drop into again artificial sea cucumber rock for sea cucumber perch, ingest, aestivation;
The input mode of seedling is: seedling is put into mesh bag, allow seedling slowly climb up artificial sea cucumber rock and adhere to, help improving survival rate, the input density of seedling can be according to the different and control rationally of the specification of seedling, throw in less by seedlings, the seedling principles of throwing in are regulated more;
The finishing period way to manage is:
(1) bait feeding
In the pond, breed sea cucumber because density is bigger, the lacking of natural bait, especially after 3~May of spring and late October in autumn,, manually throw something and feed for satisfying the growth needs of sea cucumber, to remedy the bait deficiency, the employing marine alga is simply processed or is sprinkled into the ginseng pond with manufactured feed;
(2) water quality exchange
Pond water day, exchange capacity was greater than 30% of pond water inventory, change water except can guaranteeing water quality pure and fresh, can also provide the part natural bait for sea cucumber, in addition, can also avoid the variation of pond water salinity in rainy season, for sea cucumber provides metastable living environment;
(3) daily monitoring
Note strengthening the monitoring of water quality, salinity, water temperature, sea cucumber growing state, security measure between finishing period; Be that Chi Shui changes maximum season summer, and too high as finding water temperature, water colour should change water unusually immediately, in order to avoid cause sea cucumber death; Note observing the activity of sea cucumber every day, the situation of ingesting to regulate the measure of daily ration, feeding quantity, guarantees that sea cucumber keeps animation preferably, feels every 10~15 world water, measures sea cucumber, observes the sea cucumber growing state; The safety of pond dykes and dams more should be noted especially rainy season;
(4) remove harmful animal
Before putting seedling, thoroughly clean up the pond, remove harmful animal, use 70-90 order net filtration during water inlet, in case fish shrimp crab ovum and harmful animals such as the young, water flea thereof enter with the 20ppm bleaching powder; Shrimp crab class adopts " cage " net trapping; Predacious fish is with gluing net, and hook angles catches and kills; Starfish will detect outside the pond and dry.
To breeding the improvement of method in the middle of the above-mentioned sea cucumber: the seawater of culturing in the pond relies on nature to receive the tide replacing by culturing the advancing of pond, emptying gate, and every day, quantity of exchanged water was not less than 30%.
To breeding further improvements in methods in the middle of the above-mentioned sea cucumber: described purse seine exceeds the water surface 3~5cm, and floor space is 2~4m * 4~6m.
To breeding further improvements in methods in the middle of the above-mentioned sea cucumber: the input of seedling, specification is thrown in density in the seed of 600~1000/500 gram sizes and is controlled at 20~40/square metre; Specification is thrown in density at the seedlings of 1000~3000/500 grams and is controlled at 50~100/square metre, preferably under the situation, is controlled at 100~150/square metre in temperature water quality.
The present invention compared with prior art has the following advantages and good effect: breed method in the middle of adopting this kind pond sea cucumber, meet " energy-saving and emission-reduction " policy that country advocates, changed the drawback that present nursery man " gets big row greatly ", need not to heat up, reduced energy resource consumption, cost saving, support management temporarily simply than indoor, reduce labour intensity, saved manually, effectively controlled the harmful animal thing.Be particularly useful for not having indoor sea cucumber nursery of supporting condition temporarily.Throw in the seedlings of 600~3000/500 grams, breed through the centre of associating April in October to next year and can reach 50~400/500 grams, and incubation rate can reach more than 80% also than incubation rate height in the middle of indoor, effect is remarkable.
Embodiment
Breed the embodiment of method in the middle of a kind of sea cucumber of the present invention, comprise input, the finishing period management of selecting to support ginseng pond, pond transformation, seedling.It is as follows specifically to breed method:
1) selects to support the ginseng pond
When middle tide band or low tide band selection neap, guarantee 1~1.5 meter of retaining, and non-leakage pond; Must not there be pollution, especially oil pollution in selected sea area; Salinity must not be lower than 28 ‰, and no river injects; Culture that the pond is respectively stayed one to advance, emptying gate, the replacing of this pond seawater preferably relies on nature to receive tide, and every day, quantity of exchanged water was not less than about 30%.
2) transform in the pond
At first lay and fix 35~45 orders (being advisable) polythene net with 40 orders in pond bottom, in order to prevent that harmful organisms from entering sea cucumber and breeding the zone, re-use bamboo pole and enclose 35~45 orders (being advisable) polythene net with 40 orders, according to the pond shape is that principle is divided into several regions with the pond with the material-saving, the purse seine height gets final product to exceed the water surface 3~5cm, floor space is 2~4m * 4~6m, generally is advisable with 3m * 5m.Drop into again at last artificial sea cucumber rock for sea cucumber perch, ingest, aestivation.
3) input of seedling
Seedling is put into mesh bag, allow seedling slowly climb up artificial sea cucumber rock and adhere to, help in improving survival rate.The input density of seedling can control be rationally thrown in less by seedlings according to the specification of seedling is different, and the seedling principles of throwing in are regulated more, and the seeds of common 600~1000/500 gram sizes are thrown in controllable density built in 20~40/square metre; Specification is thrown in controllable density built in 50~100/square metre at the seedlings of 1000~3000/500 grams, preferably under the situation, can be controlled in 100~150/square metre in temperature water quality.
4) finishing period management
A, bait feeding
In the pond, breed sea cucumber because density is bigger, the lacking of natural bait, especially after 3~May of spring and late October in autumn, because water temperature is lower, miniature animals and plants are less in the water, it is very clear that water seems, causes the bait wretched insufficiency, and at this moment be the thermophilic phase of sea cucumber growth, therefore, during this period, satisfy the growth needs of sea cucumber, must manually throw something and feed, to remedy the bait deficiency, adopt more some marine algas simply process or with manufactured feed be sprinkled into the ginseng pond.
B, water quality exchange
Change water except can guaranteeing water quality pure and fresh, can also provide the part natural bait, can also avoid the variation of pond water salinity in addition in rainy season, for sea cucumber provides metastable living environment for sea cucumber.Pond water day, exchange capacity was greater than 30% of pond water inventory.
C, daily monitoring
Should note strengthening the monitoring of water quality, salinity, water temperature, sea cucumber growing state, security measure between finishing period.Be that Chi Shui changes maximum season summer, and too high as finding water temperature, water colour should change water unusually immediately, in order to avoid cause sea cucumber death; Should note observing the activity of sea cucumber every day, and the situation of ingesting guarantees that with take appropriate measures (adjusting daily ration, feeding quantity) sea cucumber keeps animation preferably, feels every 10~15 world water, measures sea cucumber, observes the sea cucumber growing state; The safety of pond dykes and dams more should be noted especially rainy season.
D, removing harmful animal
Sea cucumber is easy to suffer attack and the predation of other aquatic animals because the self-defence poor ability, therefore removes the work of sea cucumber harmful animal and also be key one ring in breeding; Before putting seedling, thoroughly clean up the pond, remove harmful animal with the 20ppm bleaching powder, during water inlet with 70-90 order (being advisable) net filtration, in case fish shrimp crab ovum and harmful animals such as the young, water flea thereof enter with 80 orders; Shrimp crab class adopts " cage " net trapping; Predacious fish is with gluing net, and hook angles catches and kills; Starfish will detect outside the pond and dry.
Certainly, above-mentioned explanation is not to be limitation of the present invention, and the present invention also is not limited to above-mentioned giving an example; those skilled in the art; in essential scope of the present invention, the variation of making, remodeling, interpolation or replacement also should belong to protection scope of the present invention.