The cultural method of cray based on Natural Water system
Technical field
The invention belongs to aquaculture technical fields, more particularly to the cultivation side of the cray based on Natural Water system
Method.
Background technique
Lobster category worm shell class animal, it is similar to crab, there is a pair of especially flourishing chela, has the habit for digging a hole and living in caves, generally exist
Waterside offshore is burrowed.Lobster happiness yin keeps in dark place, and light climbs out of cave when faint or dark, when light is strong, then sinks under water or hide
It ensconces in cave.The quality of water quality directly influences healthy growth and the development of lobster.
The vitality of cray is extremely strong, and the water bodys such as pond, rice field and some barren beach, small swag can be made full use of to be supported
It grows, area is advisable with 2001-3335 square metres.Since the shrimp has the habit burrowed and burrowed, the depth in general cave is 50 ---
80cm, part cave depth are more than 1m, and for the flight that avoids burrowing, the surrounding ridge of breeding water body is wide should be in 1.5m or more, and on the ridge
The anti-escape wall or anti-escape plate of upper surrounding setting 0.5m high, inner wall smooth, build up note, drainage system.Meanwhile it to be built among pond
Several mud ridge, the both ends Ni Geng not be connected with Chi Geng, and the long ridge is about the 4/5 of pond length, and the wide lm or more in the ridge, the ridge is higher by water surface 5-
10cm creates the place lived in caves that burrows for cray.Water is advisable deeply with 0.5-1m, and the preferably intermediate depth of water, surrounding has shoal.
Bottom of pond places tree root, thick bamboo tube etc., and the water surface, which moves, supports water plant.
Summary of the invention
The purpose of the present invention is to provide the cultural methods of the cray based on Natural Water system, by using natural ecology
The circulatory system cultivation that carries out cray solved existing using copying the substance of natural stream networks to be oriented cultivation cray
During some cultivation crays, it is easy interruption, the problems such as single pool cultivated process resource waste is larger, higher cost.
In order to solve the above technical problems, the present invention is achieved by the following technical solutions:
The present invention is the cultural method of the cray based on Natural Water system, is included the following steps:
A cultivates the setting in place, using two semi-buried longitudinal bodies aquaculture ponds arranged side by side, including aquaculture pond a and aquaculture pond
b;One end of aquaculture pond a is provided with water inlet a1, and the other end is provided with water outlet a1;The one end aquaculture pond b is provided with water inlet b1,
The other end is provided with water outlet b1;
The water inlet a1 of the one end aquaculture pond a is connected to the water outlet of water pump, the water outlet a1 and aquaculture pond b mono- of the other end
The water inlet b1 at end is connected to by pipeline, and pipeline is equipped with water valve, by the logical of water valve control piper or is closed;The one end aquaculture pond b
Water outlet b1 be connected to the water inlet of water pump;
In the water inlet a1 and water outlet a1 of aquaculture pond a, the water inlet b1 and water outlet b1 of aquaculture pond b, the four of aquaculture pond a
Week, the surrounding of aquaculture pond b are respectively arranged with anti-escape network, while the knot inhabited for school lobster ejection is provided in aquaculture pond
Structure;
Green vegetation is planted respectively in the surrounding of aquaculture pond a and the surrounding of aquaculture pond b, forms natural ecological environment;
B aquaculture pond pre-treatment is removed mud and smooth bottom of pond to aquaculture pond, then the technique that carries out disinfection;
C trains water, and to filtered water inlet in aquaculture pond a, planktonic organism is cultivated in fertilising, adds organic fertilizer, and amount of application is per acre
75-100 kilograms;
D kind plants water plant, water plant, area 45%-50% is planted in aquaculture pond a, and saprophytic branch is added in water
Or branches and leaves, area 1%-5%;
E launches cray seedling, and for shrimp seedling length in the range of 0.8cm-1.5cm, shrimp species specification is 2.5cm-3.5cm;It puts
Feeding shrimp seedling, shrimp species vigor are eager to excel, and appendage is complete, and disease-free and injury-free and drought-enduring ability is strong;
F launches feed,
Keep dietary protein level in 20%-30%, day feeding amount is the 4-10% of shrimp weight, and 6-9 month water temperature is suitable,
It is the shrimp body growth most productive period, feeds 2-3 times daily;
Aquaculture pond b when carrying out fishing harvest, is carried out aquaculture pond pre-treatment in advance after the molding of the cray of aquaculture pond a by G
(being carried out referring to the step of step B aquaculture pond pre-treatment);Water plant in water is pulled out with other struts etc. being put into and is put into cultivation
In the b of pond, the valve for then connecting aquaculture pond a with aquaculture pond b is opened, and the water in aquaculture pond a is drained into aquaculture pond b,
Organic fertilizer will be added in water again, lobster seedling is added according to the step of (E launches cray seedling), can carry out in next step
Cultivation;
H clears up aquaculture pond a and receives dress lobster
Lobster in aquaculture pond a is received after being attached in basket, clear up sludge, sunning can carry out supporting for A-F step after 1-3 days
Grow lobster process;With culturing time interval 5-10 days of aquaculture pond b;After the lobster molding in aquaculture pond b, it can be caught
It obtains, and water is discharged, and carry out aquaculture pond pre-treatment (carrying out referring to the step of step B aquaculture pond pre-treatment), then wait until
After lobster maturation in aquaculture pond a, water in aquaculture pond a is discharged into aquaculture pond b, carries out the lobster cultivation of the second wheel;Referring to upper
It states process and carries out cyclic culture.
Further, in the setting up procedure in A cultivation place, the structure inhabited for school lobster ejection uses plastic barrel
Or thick bamboo tube.
Further, in the setting up procedure in A cultivation place, in the surrounding of aquaculture pond a and the surrounding difference of aquaculture pond b
It plants in green vegetation, green vegetation is the poplar or willow of plantation.
Further, the B aquaculture pond pre-treatment further includes that Chi Di will have certain gradient, forms intermediate deep, two sides shape
At the bucket shape structure in shoal;Carry out disinfection technique again, is sterilized using lime disinfection or bleaching powder disinfection or metrifonate.
Further, the F is launched in feed step, and the phosphorus-nitrogen ratio of organic fertilizer is 1:(5-8).
Further, in the C training water step, the temperature of water body is at 20 DEG C -26 DEG C.
The invention has the following advantages:
The present invention using natural ecology the circulatory system carry out cray cultivation, using copy the substance of natural stream networks into
Row orientation cultivation cray.On technical conditions of the system based on existing artificial cultivation cray, using with natural environment phase
The mode of fusion is cultivated, and using two culture ponds arranged side by side, and sufficiently restores the maintenance of vegetation in surrounding natural environment, should
Culture pond alternately reuses the water system in a upper pond by the way of the cultivation that dynamically recycles.The system is filled
The reuse of water system point is utilized, improves the utilization rate of nutritional ingredient, moreover, improve that cray continuously cultivates can
It can property.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Specific embodiment
The present invention is the cultural method of the cray based on Natural Water system, below in conjunction with specific embodiments specifically
The bright present invention, comprising the following steps:
A cultivates the setting in place, using two semi-buried longitudinal bodies aquaculture ponds arranged side by side, including aquaculture pond a and aquaculture pond
b.One end of aquaculture pond a is provided with water inlet a1, and the other end is provided with water outlet a1;The one end aquaculture pond b is provided with water inlet b1,
The other end is provided with water outlet b1.
The water inlet a1 of the one end aquaculture pond a is connected to the water outlet of water pump, the water outlet a1 and aquaculture pond b mono- of the other end
The water inlet b1 at end is connected to by pipeline, and pipeline is equipped with water valve, by the logical of water valve control piper or is closed;The one end aquaculture pond b
Water outlet b1 be connected to the water inlet of water pump.
In the water inlet a1 and water outlet a1 of aquaculture pond a, the water inlet b1 and water outlet b1 of aquaculture pond b, the four of aquaculture pond a
Week, the surrounding of aquaculture pond b are respectively arranged with anti-escape network, while the bamboo inhabited for school lobster ejection is provided in aquaculture pond
Cylinder.
In the surrounding of aquaculture pond a, the surrounding of aquaculture pond b plants green vegetation respectively, forms natural ecological environment.
B aquaculture pond pre-treatment is removed mud and smooth bottom of pond to aquaculture pond, bottom of pond and pool wall is made to have good water conservation
Performance reduces the leakage of water as far as possible.Chi Di will have certain gradient, form intermediate deep, the bucket shape structure in two sides formation shoal;
Carry out disinfection technique again, is sterilized using lime disinfection or bleaching powder disinfection or metrifonate.
C trains water, and to intaking in aquaculture pond a, when water inlet will be filtered, to prevent wild fishes and fish-egg from entering pond with water, together
When fertilising cultivate planktonic organism, become the natural feed of shrimp, common organic rate of fertilizer is 75-100 kilograms per acre, makes water
Color has certain fertile degree to be stepped up dose with the intensification of dampening.
D kind plants water plant, water plant, area 45%-50% is planted in aquaculture pond a, and saprophytic branch is added in water
Or branches and leaves, area 1%-5%;Water plant is that shrimp is hidden, the good place of the ideal place inhabited and shrimp husking simultaneously, is mentioned
The survival rate of high shrimp.
E launches cray seedling
Lobster neat specification, for shrimp seedling length in the range of 0.8cm-1.5cm, shrimp species specification is 2.5cm-3.5cm;It puts in a suitable place to breed
Shrimp seedling, shrimp species vigor are eager to excel, and appendage is complete, and disease-free and injury-free and drought-enduring ability is strong.It is first put into basin when launching lobster, and past basin
The water of the middle a small amount of aquaculture pond a of addition, adds the salt of 3%-4%, sterilizes, then is slowly put into along pool side within dipping bath 5 minutes or so
Chi Zhong pays attention to avoiding being exposed to the sun when putting in a suitable place to breed.Can generally put in a suitable place to breed 3cm ten thousand tail of juvenile prawn 1-1.5 or 80-120kg/ mus of weight, while can
Silver carp flathead summer flower fingerling 50-100 tail/mu is raised together, with regulating water quality.In this way at shrimp yield up to 400-600kg, such as from other places purchase fortune
Shrimp seedling, long from the water time, even there is stupor phenomenon in some shrimps, should temporarily support 20 minutes in basin and launch again, can be improved and survive
Rate.
F launches feed
Lobster is omnivorousness, is fond of animal fodder especially, and cray natural disposition is greedy, food ration is big, can at shrimp aquaculture
Rice bran, soya-bean cake, wheat bran, trash fish, spiral shell freshwater mussel meat, silkworm chrysalis, earthworm, slaughterhouse leftover bits and pieces or mixed feed of rubbing etc. directly are fed,
Keep dietary protein level 25% or so, day feeding amount is the 4-10% of shrimp weight, according to season, weather, water quality, shrimp
Physiological status and adjust.6-9 month water temperature is suitable, is the shrimp body growth most productive period, generally feeds 2-3 times daily.Feedstuff feeding should be noted
It is thrown when weather is fine, high temperature is sultry, continuous rainy days or water quality overrich then throw less more;It is thrown less when large quantities of shrimp shells, it is more after shell
It throws.
Aquaculture pond b when carrying out fishing harvest, is carried out aquaculture pond pre-treatment in advance after the molding of the cray of aquaculture pond a by G
(being carried out referring to the step of step B aquaculture pond pre-treatment);Water plant in water is pulled out with other struts etc. being put into and is put into cultivation
In the b of pond, the valve for then connecting aquaculture pond a with aquaculture pond b is opened, and the water in aquaculture pond a is drained into aquaculture pond b,
Organic fertilizer will be added in water again, lobster seedling is added according to the step of (E launches cray seedling), can carry out in next step
Cultivation.
H clears up aquaculture pond a and receives dress lobster
Lobster in aquaculture pond a is received after being attached in basket, clear up sludge, sunning can carry out supporting for A-F step after 1-3 days
Grow lobster process.With culturing time interval 5-10 days of aquaculture pond b.After the lobster molding in aquaculture pond b, it can be caught
It obtains, and water is discharged, and carry out aquaculture pond pre-treatment (carrying out referring to the step of step B aquaculture pond pre-treatment), then wait until
After lobster maturation in aquaculture pond a, water in aquaculture pond a is discharged into aquaculture pond b, carries out the lobster cultivation of the second wheel.Referring to upper
It states process and carries out cyclic culture.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Specific features described in conjunction with this embodiment or example, structure, material live feature and are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.