CN101897318B - Cyclemys trifasciata hatching method - Google Patents
Cyclemys trifasciata hatching method Download PDFInfo
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- CN101897318B CN101897318B CN2010102345959A CN201010234595A CN101897318B CN 101897318 B CN101897318 B CN 101897318B CN 2010102345959 A CN2010102345959 A CN 2010102345959A CN 201010234595 A CN201010234595 A CN 201010234595A CN 101897318 B CN101897318 B CN 101897318B
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Abstract
The invention relates to a Cyclemys trifasciata hatching method which comprises the following steps: during the expected date of confinement of Cyclemys trifasciata, mixing river sand and clay into sand soil, exposing to the sun, and putting the sand soil into a box for later use; within 24 hours after the Cyclemys trifasciata spawns, selecting oosperms, embedding the oosperms into the sand soil at certain intervals, and moving the box into a room; controlling the water content of the sand soil at 6-8%, and setting the temperature of the sand soil at 25-27 DEG C to hatch male young Cyclemys trifasciata, or setting the temperature of the sand soil at 29.2-29.8 DEG C to hatch out female young Cyclemys trifasciata; and regularly inspecting the hatching condition every 2-3 days to find out and remove broken oosperms. The invention scientifically controls the ambient temperature and humidity for hatching, so that the oosperms of Cyclemys trifasciata are hatched in a preferable environment, thereby effectively increasing the hatching rate of Cyclemys trifasciata and scientifically controlling the sex proportion of young Cyclemys trifasciata. The invention reasonably selects the sand soil as the hatching medium, and has the advantages of environmental protection, sanitation, simple hatching steps, low cost, high benefit and easy realization.
Description
Technical field
The invention belongs to agricultural and sideline aquaculture technical field, be specifically related to tortoise cultural technique field, particularly Cyclemys trifasciata hatching method.
Background technology
In recent years, small water turtle was propagated artificially gradually and was risen, and had become the breed project that receives the favor of vast aquaculture family deeply.Small water turtle is propagated artificially and is still belonged to emerging industry, and most small water turtle raisers have half knowledge to the small water turtle cultural technique, during small water turtle is cultured key link--the Cyclemys trifasciata hatching technology more lacks deep understanding.The small water turtle raiser adopts the nature hatching m usually or carries out Cyclemys trifasciata hatching with reference to other tortoise kind tradition hatching m at present, do not grasp the Cyclemys trifasciata hatching technology of science as yet, so the small water turtle hatchability is on the low side always.In addition; Because of the sex of hatching young tortoise can't science be controlled; It is on the high side to cause hatching in the young tortoise female young tortoise; This not only can cause the male young tortoise seedling of the required small water turtle of small water turtle plant to be met, and has finally limited the scale development that small water turtle is cultured, and also can influence small water turtle raiser's the income and the population breeding of small water turtle.
The small water turtle raiser gets the small water turtle seedling for seeking at present; Usually adopt modes such as purchase, seizure to obtain the small water turtle seedling; This not only increases raiser's input cost, makes that again small water turtle seedling size mixes, physical condition is uneven, is not easy to unified management, cultures in batches.Therefore, culture the sustainable and healthy development of industry in order to promote small water turtle, it is very necessary that the Cyclemys trifasciata hatching technology is carried out scientific research.
Summary of the invention
Technical problem to be solved by this invention provides a kind of can effectively improve the Cyclemys trifasciata hatching method that young tortoise sex ratio is hatched in the control of hatchability and science.
For solving the problems of the technologies described above, the technical scheme that the present invention realizes is: a kind of Cyclemys trifasciata hatching method comprises following operation sequence:
(1), get the raw materials ready: small water turtle was got river sand, clay ready and is uniformly mixed into sandy soil between the expected date of childbirth, inserted uncovered casing or perisporium and had in the casing of ventilation hole for use through the sun sterilization of being exposed to the sun;
(2), collect fertilized egg: small water turtle was laid eggs back 24 hours in, selects fertilized egg and it is imbedded in the sandy soil by a determining deviation and the degree of depth, casing was moved to indoor;
Incubation condition: casing indoor air humidity of living in remains on 80%～90%; The water content of sandy soil is controlled at 6%～8% in the casing; If the male larger proportion that accounts in the young tortoise that need hatch; Then the sandy soil temperature is controlled at 25 ℃～27 ℃,, then the sandy soil temperature is controlled at 29.2 ℃～29.8 ℃ if female tortoise accounts for larger proportion in the young tortoise that need hatch.
(3), regularly check: the every inspection at a distance from 2～3 days once hatched situation, finds that bad ovum in time removes.
Sandy soil thickness is 15～30 centimetres in the above-mentioned casing, and the mixed proportion of river sand and clay is 0.8: 1～1: 0.8 in the said sandy soil, and the degree of depth that fertilized egg is imbedded in the sandy soil is 15～30 centimetres, and the spacing between each fertilized egg is 2～5 centimetres.The particle diameter of river sand is 0.3～1.0 millimeter in the said sandy soil, and the particle diameter of clay is 0.05～0.2 millimeter.
Be mixed with particle diameter in the said sandy soil and be 0.3～0.7 millimeter vermiculite.
In small water turtle was laid eggs back 24 hours,, then fertilized egg is stayed put, and near it, insert the board sign if in time fertilized egg is not collected in the casing.
Beneficial effect of the present invention is:
1, the present invention controls through the science to the environment of hatching temperature and humidity, and small water turtle fertilized egg is hatched under preferable environment, effectively improves the sex ratio that young tortoise is hatched in the control of small water turtle hatchability and science.
2, the present invention by the sandy soil of rationally selecting as incubation medium, environmentally-friendly sanitary, the hatching step is simple, cost is low and be easy to realize, can effectively reduce the raiser input, save aquaculture cost, increase the benefit.
Embodiment
The invention discloses a kind of Cyclemys trifasciata hatching method; Adopt this hatching m can effectively improve hatchability; And can rationally control the sex ratio of hatching young tortoise, the quantitative proportion of female and male young tortoise is rationalized, this Cyclemys trifasciata hatching method comprises following operation sequence:
(1), get the raw materials ready: small water turtle was got river sand, clay ready and is uniformly mixed into sandy soil between the expected date of childbirth, inserted uncovered casing or perisporium and had in the casing of ventilation hole for use through the sun sterilization of being exposed to the sun;
(2), collect fertilized egg: small water turtle was laid eggs back 24 hours in, selects fertilized egg and it is imbedded in the sandy soil by a determining deviation and the degree of depth, casing was moved to indoor;
Incubation condition: casing indoor air humidity of living in remains on 80%～90%; The water content of sandy soil is controlled at 6%～8% in the casing; If the male larger proportion that accounts in the young tortoise that need hatch; Then the sandy soil temperature is controlled at 25 ℃～27 ℃,, then the sandy soil temperature is controlled at 29.2 ℃～29.8 ℃ if female tortoise accounts for larger proportion in the young tortoise that need hatch.
(3), regularly check: the every inspection at a distance from 2～3 days once hatched situation, finds that bad ovum in time removes.
During practical operation, need the sandy soil on small water turtle is laid eggs preceding scarifying, the spawning ground of being exposed to the sun, in case of necessity it is carried out disinfection, sandy soil humidity is pinched agglomerating, promptly diffusing being advisable of loosing one's grip with hand.Need careful procuratorial work every day to wait to produce small water turtle and spawning ground between the expected date of childbirth at small water turtle.Then get casing ready when the vestige of finding to lay eggs, casing can be bubble chamber, carton or plastic box, and the neglecting fertilized egg quantity greatly of casing and deciding generally selects the length and width height to be respectively 40～80 centimetres, 40～80 centimetres, 40～60 centimetres casing.The casing that is used to hatch can be uncovered casing, also can be the casing that perisporium has ventilation hole.In casing, put into the sandy soil after the sun is exposed to the sun sterilization of 15～30 centimetres of thickness; Laid eggs back 24 hours at small water turtle; Adopt the method for light-illuminating tell fertilized egg and with its collection, imbed in the sandy soil; When with light-illuminating tortoise ovum, if ovum central authorities' adularescent annulus or hickie then are fertilized egg.
During hatching; The moist degree of sandy soil and air humidity directly influence the embryonic development of fertilized egg, and air humidity is excessive, the sandy soil water content is too high, cause the fertilized egg necrosis that suffocates easily; Air humidity is too small, the sandy soil water content is low; Then fertilized egg be prone to because of the moisture excessive evaporation " dry up " downright bad, so with the humidity of sandy soil be controlled at 6%～8%, casing environmental air humidity remains on 80%～90%, helps embryo's normal development of fertilized egg most.Temperature plays an important role in hatching process, and the height of temperature influences the length of embryonic development speed, incubation period and the sex of young tortoise.Generally speaking, in 22～33 ℃ of scopes, the high more embryonic development of the temperature time faster, that hatch is shorter, otherwise then the embryonic development time slow, hatching heals long.Therefore, when being controlled at the sandy soil temperature in 25 ℃～27 ℃ scopes, can make the most of young tortoise that hatches be male, when being controlled at the sandy soil temperature in 29.2 ℃～29.8 ℃ scopes, can make the most of young tortoise that hatches be female.
Sandy soil thickness is advisable with 15～30 centimetres in the casing; In order to ensure that sandy soil have air permeability and good and water binding capacity concurrently; The mixed proportion of river sand and clay is 0.8: 1～1: 0.8 in the sandy soil; This ratio helps making sandy soil to keep suitable humidity and air circulation, and fertilized egg is hatched in appropriate environments, effectively improves hatchability.Fertilized egg is imbedded to cross in the sandy soil and is occurred fertilized egg suffocating deeply easily; Imbedded the shallow influence that changed by ambient temperature and damp condition; Therefore the degree of depth imbedded in the sandy soil of fertilized egg is advisable with 8～14 centimetres, and this depth bounds can better ensure that fertilized egg hatches in the condition of constant temperature and humidity.The spacing of fertilized egg should be at 2～5 centimetres, and this distance range had both given fertilized egg enough incubation spaces, keep each fertilized egg not interact, and ensured the uniformity of incubation condition again.The particle diameter of river sand is 0.3～1.0 millimeter in the sandy soil; The particle diameter of clay is 0.05～0.2 millimeter; Particle diameter is that 0.3～1.0 millimeter river sand can make sandy soil keep air permeability and good, and particle diameter is that 0.05～0.2 millimeter clay then makes sandy soil have water binding capacity preferably, plays the constant temperature and humidity effect.Certainly, can also join in sandy soil in case of necessity that particle diameter is arranged is 0.3～0.7 millimeter vermiculite, it mainly acts on and is sandy soil are played insulation effect, also has the effect of mould fungus inhibition growth, virus killing in addition, ensures that fertilized egg is not infected.
Below in conjunction with specific embodiment the present invention is further specified:
Embodiment 1
Small water turtle between the expected date of childbirth every day check that the spawning ground once; After finding that small water turtle is laid eggs; Get river sand and clay ready by 1: 1 component ratio; And river sand and clay be uniformly mixed into sandy soil, and after the sun is exposed to the sun sterilization, to insert the length and width height and be respectively for use in 50 centimetres, 50 centimetres, 40 centimetres the casing, the sandy soil cladding thickness of inserting in the casing is 30 centimetres.Laid eggs back 24 hours at small water turtle, adopt the light-illuminating mode to tell fertilized egg, and fertilized egg is collected and imbedded in the sandy soil, the degree of depth that fertilized egg is imbedded in the sandy soil is 10 centimetres, and the interval equidistance with 2 centimetres discharges between each fertilized egg.Then casing is moved to indoor, with the water content of sandy soil be controlled to be 6%～8%, the air humidity of hatching casing remains on 80%～90%, the sandy soil temperature is controlled to be 29.5 ℃ of constant temperature.The every inspection at a distance from 2 days once hatched situation, finds that bad ovum in time removes.Young tortoise pips successively after about 60 days, and major part is female young tortoise, needs after young tortoise hatches in time to take out in order to avoid influence all the other fertilized egg hatching, finishes until all incubating oosperms.
Embodiment 2
Small water turtle between the expected date of childbirth every day check that the spawning ground once; After finding that small water turtle is laid eggs; Get river sand and clay ready by 0.8: 1 component ratio; And river sand and clay be uniformly mixed into sandy soil, and after the sun is exposed to the sun sterilization, to insert the length and width height and be respectively for use in 60 centimetres, 60 centimetres, 50 centimetres the casing, the sandy soil thickness of inserting in the casing is 30 centimetres.Laid eggs back 24 hours at small water turtle, employing light-illuminating mode is told fertilized egg and is imbedded in the sandy soil, and the degree of depth of imbedding in the sandy soil is 12 centimetres, and the interval equidistance with 3 centimetres discharges between each fertilized egg.Then casing is moved to indoor, with the water content of sandy soil be controlled to be 7%～8%, the air humidity of hatching casing remains on 85%～88%, the sandy soil temperature is controlled to be 26.5 ℃ of constant temperature.The every inspection at a distance from 3 days once hatched situation, finds that bad ovum in time removes.After about 65 days, young tortoise pips successively, and major part is male young tortoise, needs after young tortoise hatches in time to take out in order to avoid influence the continuation hatching of all the other fertilized eggs, finishes until all incubating oosperms.
Fail in time to find fertilized egg in back 24 hours if small water turtle is laid eggs, then hatch not according to above way, but with near its hatching and it, insert the board sign of staying put.
The foregoing description is a preferred implementation of the present invention, and in addition, the present invention can also have other implementations.That is to say that under the prerequisite that does not break away from the present invention's design, any conspicuous replacement also should fall into protection scope of the present invention.
Claims (1)
1. Cyclemys trifasciata hatching method comprises following operation sequence:
(1), get the raw materials ready: small water turtle is between the expected date of childbirth, gets river sand ready, clay is uniformly mixed into sandy soil, inserts uncovered casing or perisporium and has in the casing of ventilation hole for use through the sun sterilization of being exposed to the sun;
(2), collect fertilized egg: small water turtle was laid eggs 24 hours in, selects fertilized egg and it is imbedded in the sandy soil by a determining deviation and the degree of depth, casing was moved to indoor;
Incubation condition: casing indoor air humidity of living in remains on 80%～90%; The water content of sandy soil is controlled at 6%～8% in the casing; If the male larger proportion that accounts in the young tortoise that need hatch; Then the sandy soil temperature is controlled at 25 ℃～27 ℃,, then the sandy soil temperature is controlled at 29.2 ℃～29.8 ℃ if female tortoise accounts for larger proportion in the young tortoise that need hatch;
(3), regularly check: the every inspection at a distance from 2～3 days once hatched situation, finds that bad ovum in time removes;
Sandy soil thickness is 15～30 centimetres in the said casing, and the mixed proportion of river sand and clay is 1: 1 or 1: 0.8 in the sandy soil, and the degree of depth that fertilized egg is imbedded in the sandy soil is 15～30 centimetres, and the phase spacing between each fertilized egg is at 2～5 centimetres;
The particle diameter of river sand is 0.3～1.0 millimeter in the said sandy soil, and the particle diameter of clay is 0.05～0.2 millimeter;
Contain particle diameter in the said sandy soil and be 0.3～0.7 millimeter vermiculite;
In time fertilized egg is not collected in the casing in back 24 hours if small water turtle is laid eggs,, and insert board nearby and identify then with its hatching that stays put.
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| CN2010102345959A CN101897318B (en) | 2010-07-21 | 2010-07-21 | Cyclemys trifasciata hatching method |
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| CN2010102345959A CN101897318B (en) | 2010-07-21 | 2010-07-21 | Cyclemys trifasciata hatching method |
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| CN103609521A (en) * | 2013-11-13 | 2014-03-05 | 赵林斌 | Method for incubating all-male turtles |
| CN103875602B (en) * | 2014-04-15 | 2015-09-16 | 深圳职业技术学院 | A kind of hatching m obtaining the male tortoise seedling of Cuora trifasciata of high hatchability |
| CN104430153A (en) * | 2014-11-07 | 2015-03-25 | 余珍青 | Breeding method for improving spawning rate and hatching rate of cuoraflavomarginatas |
| CN104304179A (en) * | 2014-11-18 | 2015-01-28 | 融水苗族自治县怀宝镇人民政府 | Breeding hatching method for snapping turtle |
| CN104396877B (en) * | 2014-12-09 | 2016-04-13 | 南宁市水产畜牧兽医技术推广站 | The hatching m of the male tortoise of a kind of small water turtle |
| CN109548745A (en) * | 2018-12-07 | 2019-04-02 | 广东省生物资源应用研究所 | A kind of method of low temperature induction tortoise ovum diapause |
| CN109566530A (en) * | 2018-12-07 | 2019-04-05 | 广东省生物资源应用研究所 | A kind of method of the red ear tortoise ovum diapause of low temperature induction |
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| 中国农业技术网.金钱龟的人工繁殖技术要点.《江西新农村建设网》.2008,http://www.jxagriec.gov.cn/b_include/detail.asp?fileclass=d%C5%A9%D2%B5%BF%C6%BC%BC&id=152861. * |
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