CN111685077B - Artificial hatching method for crocodiles - Google Patents
Artificial hatching method for crocodiles Download PDFInfo
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- CN111685077B CN111685077B CN202010507746.7A CN202010507746A CN111685077B CN 111685077 B CN111685077 B CN 111685077B CN 202010507746 A CN202010507746 A CN 202010507746A CN 111685077 B CN111685077 B CN 111685077B
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K67/00—Rearing or breeding animals, not otherwise provided for; New or modified breeds of animals
- A01K67/02—Breeding vertebrates
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/20—Gaseous substances, e.g. vapours
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/22—Phase substances, e.g. smokes, aerosols or sprayed or atomised substances
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/20—Targets to be treated
- A61L2202/23—Containers, e.g. vials, bottles, syringes, mail
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/20—Targets to be treated
- A61L2202/25—Rooms in buildings, passenger compartments
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- General Health & Medical Sciences (AREA)
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Abstract
The invention discloses an artificial hatching method of crocodiles, which comprises the following steps: in the crocodile egg laying season, finding out egg holes on a crocodile egg laying field, taking out crocodile eggs, carrying out primary identification, and selecting crocodile eggs with obvious fertilization; disinfecting the hatching tray and the hatching chamber by adopting a fumigation disinfection method or a spray disinfection method; the method comprises the steps of putting the animal with the obviously fertilized alligator eggs into a hatching tray in a polar upward mode, sending the animal into a hatching chamber for hatching, setting the indoor temperature of the hatching chamber to be 28-33 ℃ by adopting a constant-temperature constant-humidity generator, setting the relative humidity to be 80-100%, and hatching young alligators after 70-90 days. According to the method, the steps of hatching egg selection, disinfection, hatching and the like are strictly controlled, and the temperature and the humidity in the hatching chamber are well regulated in the hatching process so as to meet the hatching requirement of crocodiles and improve the survival rate and the spawning rate of the crocodiles, and the method is simple in hatching step, high in benefit and easy to realize.
Description
Technical Field
The invention relates to the technical field of artificial breeding, in particular to an artificial hatching method for crocodiles of bay crocodiles and Siamese crocodiles.
Background
Crocodiles are rare animals in the world, have a life history of 2 hundred million years and are close relatives to dinosaurs. The physiological function is peculiar, the vitality is strong, the dinosaur is killed 6500 ten thousand years ago, and the crocodile survives and develops to date. The crocodile has a substance capable of optimizing nucleic acid in vivo, the substance can make the nucleic acid full of vitality and enhance disease resistance, simultaneously activate catalase and SOD in vivo, and effectively remove garbage in vivo, thereby delaying life aging, and making the life of the crocodile exceed that of terrapin, and the average life of the crocodile is up to 150 years old. The hemoglobin amino acid chain in the muscle of the crocodile has a very peculiar structure, so that the oxygen carrying capacity of the hemoglobin of the crocodile exceeds that of other animals by more than 100 times, and the crocodile breathes by using the lung, but has much higher air-stopping capacity in water than whales and dolphins. Therefore, crocodile culture is carried out. The method has important significance for researching biological evolution, breeding endangered animals, expanding the population and the number of the endangered animals, protecting the ecological environment and discussing the effects of special physiology in human medicine.
The gulf crocodile is the crocodile of crocodile family and crocodile genus, the gulf crocodile is the largest of 23 crocodile varieties and also is the largest reptile in the world, the adult back body length of a male gulf crocodile can reach 7 meters, but generally can not exceed 5 meters, the female maximum body length can reach 2.5-3 meters, the adult male crocodile can reach 600-plus-1000 kilograms in weight, the larva is light brown, the body and the tail have black spot stripes, the adult color is darker, the belly is light yellow or white, and the tail end of the tail is gray.
Siamese crocodile is also named Siamese fresh water crocodile, small-size crocodile in Singapore, is mainly distributed in the places such as the south China in south-east Asia, Indonesia, Malaysia, Thailand, Vietnam and the like, is a medium-sized crocodile, can reach 4 meters to the longest for an adult crocodile, is 3 meters long for common crocodile, and is about 25 centimeters long when young crocodile is hatched. The Siamese crocodile has a medium and slightly concave length which is about 1.5 to 1.6 times of the width of an kissing base, the front edges of two eye sockets are provided with a pair of short sharp ridge edges, the forehead is positioned between the two eye sockets and is provided with an obvious eye socket, and the scale bone is protruded into a high ridge.
At present, crocodile farmers aiming at bay crocodiles and Siamese crocodiles generally adopt a natural hatching method or perform crocodile hatching by referring to other traditional animal hatching methods, scientific and targeted bay crocodiles and Siamese crocodiles hatching technologies are not mastered yet, and therefore bay crocodiles and Siamese crocodiles hatching rates are low all the time.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the artificial hatching method for the crocodiles of bay crocodiles and Siamese crocodiles, which is favorable for improving the hatching survival rate and obtaining healthy crocodile seedlings.
The invention is realized by adopting the following technical scheme:
an artificial hatching method of crocodile comprises the following steps:
s1: selecting hatching eggs; in the crocodile egg laying season, finding out egg holes on a crocodile egg laying field, taking out crocodile eggs, carrying out primary identification, and selecting crocodile eggs with obvious fertilization;
s2: sterilizing; disinfecting the hatching tray and the hatching chamber by adopting a fumigation disinfection method or a spray disinfection method;
s3: hatching; placing the animal with the obviously fertilized alligator eggs into a sterilized hatching tray in an upward mode, sending the animal into a hatching chamber for hatching, setting the indoor temperature of the hatching chamber to be 28-33 ℃ by adopting a constant-temperature constant-humidity generator, setting the relative humidity to be 80-100%, and hatching young alligators after 70-90 days.
Further, in the step S2, the fumigation method includes: 30g of formalin and 15g of potassium permanganate are put into a ceramic ware bowl according to the volume of each cubic meter, and fumigation is carried out under the conditions that the temperature is 24-27 ℃ and the relative humidity is 70-80 percent, wherein the disinfection time is 25-30 min.
Further, in the step S2, the spray sterilization method is: adopting 0.3 to 0.5 percent of peroxyacetic acid and 0.015 percent of Baidu for respectively spraying and disinfecting once.
Further, in the step S3, the ratio of young crocodiles hatching out of the female and male crocodiles is controlled by controlling the temperature in the hatching chamber, the female crocodiles are easy to hatch out when the temperature is between 28 ℃ and 30 ℃, and the male crocodiles are easy to hatch out when the temperature is between 32 ℃ and 33 ℃.
Further, in the step S3, three times of egg lighting are performed during the incubation, wherein 30 days of first lighting, 60 days of second lighting and 80 days of third lighting are performed during the incubation, and clear eggs, dead embryo eggs and smelly eggs are removed in time during the egg lighting.
Further, the method for judging the egg-phase characteristics of the photo comprises the following steps: the embryo development is normal, the embryo head is enlarged and is in a spider web shape, the eyespot is obvious, the embryo bead is formed, and the whole egg is slightly red; the embryo body of the weak embryo egg is small, the blood vessel is thin and weak to distribute, and the eyeball is not obvious; when the eggs are photographed without the eggs, the eggs are transparent, and when the eggs are rotated, only the egg yolks float; cloudiness, white color, presence of blood rings, blood arcs, blood streaks or blood spots in the dead embryo eggs.
Further, the method for judging the egg-phase characteristics of the second photo comprises the following steps: the boundary of the embryo-strengthening egg is clear, and fresh red blood vessels are distributed outside the air chamber; the small end of the weak embryo egg has partial area without blood vessel distribution; the boundary of the dead embryo egg air chamber is fuzzy and is in a black ball shape, or residual blood vessels are left.
Further, the method for judging the egg-phase characteristics of the three pictures comprises the following steps: the air chamber of the embryo-strengthening egg is enlarged and highly inclined, partial blood vessel distribution is still seen at the edge of the air chamber, the whole egg is dark in color outside the air chamber, and the head, neck or body of the embryo can move against the membrane of the air chamber; the air chamber of the weak embryo egg is relatively flat, and the edge of the air chamber has more blood vessels; the boundary of the air chamber of the dead embryo egg is fuzzy, and the interior of the egg is turbid.
Further, before the step S1, the method further includes the following steps:
s0: building a hatching room; the hatching room adopts cement frame construction to set up, builds through the heated board to divide into hatching room and child care tank, be provided with a plurality of tray sets that constitute with a plurality of range upon range of hatching trays in the hatching room, each tray set is neatly put, and the interval of every layer of hatching tray is 1m, and the top of tray set is greater than 1.5m with the distance on hatching room roof.
Further, the hatching room adopts a fully-closed one-way flow operation, and the operation sequence is as follows: personnel disinfection, hatching egg receiving and identification, disinfection and warehousing, tray loading, preheating and disinfection, hatching and conservation.
Compared with the prior art, the invention has the beneficial effects that:
according to the method, the steps of hatching egg selection, disinfection, hatching and the like are strictly controlled, and the temperature and the humidity in the hatching chamber are well regulated in the hatching process so as to meet the hatching requirement of crocodiles and improve the survival rate and the spawning rate of the crocodiles, and the method is simple in hatching step, high in benefit and easy to realize.
Detailed Description
The present invention is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.
The invention provides an artificial incubation method of crocodiles, which is mainly aimed at bay crocodiles and Siamese crocodiles, and comprises the following steps:
s1: construction of hatching room
The hatching room adopts cement frame construction to set up, builds through the heated board, and divide into hatching room and child care tank, be provided with a plurality of tray sets that constitute with a plurality of range upon range of hatching trays in the hatching room, each tray set is neatly put, and the interval of every layer of hatching tray is 1m, and the top of tray set is greater than 1.5m with the distance on hatching room roof, reserves sufficient circulation of air space, avoids cross infection.
The hatching room adopts a fully-closed one-way flow operation, and the operation sequence is as follows: personnel disinfection, hatching egg receiving and identification, disinfection and warehousing, tray loading, preheating and disinfection, hatching and conservation.
Wherein, the inner and outer walls of the wall body are painted with lime powder to be smooth, and the thickness of the heat-insulating plate is 18 cm; and the power consumption of the hatching room uses a wire with a power consumption larger than a safety factor according to the power consumption required in the field. The hatching room adopts a full-automatic multifunctional hatching machine controller to carry out full-automatic control on indoor processes of temperature, humidity, sterilization and the like. The humidifier is Jsc _906a and has the rated power of 28 watts; the electric heater is Nbfc _21b, the rated voltage is 220v, the rated frequency is 50 Hz, and the rated power is 2100W; the ultraviolet disinfection lamp is Uvb lamp replile uv 10.0; the water heating constant temperature rod is hch-300 w; the exhaust fan is Apc 15E, the power is 24 watts, 120 cubic meters per hour, the rated power is 50 Hz, and the wind pressure is 168 Pa.
S2: egg selection
In the crocodile egg laying season, finding out egg holes on a crocodile egg laying field, taking out crocodile eggs, carrying out primary identification, and selecting the crocodile eggs with obvious fertilization.
Wherein the egg laying season of crocodiles is 5-8 months per year, the climate warm places can be advanced by six to eight months, such as places in Africa, southeast Asia, Hainan island and the like, and the egg laying season of crocodiles is 11 months from this year to 3 months from the next year.
The crocodile egg nest is divided into a stacking type nest and a hole type nest, a female crocodile in the stacking type nest is stacked by straw withered leaf soil and is obviously higher than the ground, in addition, the nest protection behavior exists, the hole type nest is difficult to discover, and through observation and breeding experience, the crocodile egg can be discovered by utilizing the nest protection behavior of the female crocodile. In one embodiment, the method for finding the egg hole comprises the following steps: and marking the egg holes with loose sand and marks of the female fish claws, and slightly digging the sand.
The egg selection is carried out on an egg laying site of the crocodile in the morning, such as 6-10 o' clock.
Placing the alligator eggs which are not obviously fertilized for another 2-3 days, and if the animals still do not appear, eliminating the alligator eggs which are not fertilized together.
S3: disinfection
And disinfecting the hatching tray and the hatching chamber by adopting a fumigation disinfection method or a spray disinfection method.
The hatching eggs are sterilized once for each of the hatching trays and the hatching chambers before being stored and before being hatched. Personnel entering the hatching chamber also need to be disinfected by fumigation or spray disinfection.
Wherein, the fumigation method comprises the following steps: 30g of formalin and 15g of potassium permanganate are put into a ceramic ware bowl according to the volume of each cubic meter, and fumigation is carried out under the conditions that the temperature is 24-27 ℃ and the relative humidity is 70-80 percent, wherein the disinfection time is 25-30 min.
The spray disinfection method comprises the following steps: adopting 0.3 to 0.5 percent of peroxyacetic acid and 0.015 percent of Baidu for respectively spraying and disinfecting once.
S4: hatching
Placing the animal with the obviously fertilized alligator eggs into a sterilized hatching tray in an upward mode, sending the animal into a hatching chamber for hatching, setting the indoor temperature of the hatching chamber to be 28-33 ℃ by adopting a constant-temperature constant-humidity generator, setting the relative humidity to be 80-100%, and hatching young alligators after 70-90 days.
Wherein, in the hatching process, the indoor air is kept fresh, no pungent and corrosive smell exists, and strong mechanical vibration is avoided nearby.
The temperature of the hatching chamber is set in a swinging mode at regular intervals, the ratio of young crocodiles hatched from the female crocodiles and the male crocodiles is controlled by controlling the temperature in the hatching chamber, the female crocodiles are easy to hatch when the temperature is between 28 and 30 ℃, and the male crocodiles are easy to hatch when the temperature is between 32 and 33 ℃. Namely, the required female crocodiles and male crocodiles are reached by setting different temperatures according to requirements.
During the incubation process, eggs are photographed for three times, wherein the eggs are photographed for 30 days, 60 days and 80 days respectively, and clear eggs, dead embryo eggs and smelly eggs are removed in time during the egg photographing process.
The method for judging the egg photo features comprises the following steps: the embryo development is normal, the embryo head is enlarged and is in a spider web shape, the eyespot is obvious, the embryo bead is formed, and the whole egg is slightly red; the embryo body of the weak embryo egg is small, the blood vessel is thin and weak to distribute, and the eyeball is not obvious; when the eggs are exposed to light, the eggs are transparent, and when the eggs are rotated, only the egg yolks float; cloudiness, white color, presence of blood rings, blood arcs, blood streaks or blood spots in the dead embryo eggs.
The method for judging the egg phase characteristics of the second photo comprises the following steps: the boundary of the embryo-strengthening egg is clear, and fresh red blood vessels are distributed outside the air chamber; the small end of the weak embryo egg has partial area without blood vessel distribution; the boundary of the dead embryo egg air chamber is fuzzy and is in a black ball shape, or residual blood vessels are left.
The method for judging the egg phase characteristics of the three pictures comprises the following steps: the air chamber of the embryo-strengthening egg is enlarged and highly inclined, partial blood vessel distribution is still seen at the edge of the air chamber, the whole egg is dark in color outside the air chamber, and the head, neck or body of the embryo can move against the membrane of the air chamber; the air chamber of the weak embryo egg is relatively flat, and the edge of the air chamber has more blood vessels; the boundary of the air chamber of the dead embryo egg is fuzzy, and the interior of the egg is turbid.
S5: emergence of seedlings
The embryo develops normally, hatching is started to hatch when the embryo grows to 85 days, and the seedling emergence is finished when the embryo grows to 90 days. And 5, inspecting and cleaning in time within the seedling emergence time.
S6: cleaning up
After the seedling emergence, the hatching chamber and the ground are cleaned and disinfected in time, and the waste is subjected to harmless treatment to meet the GB 18596 requirement.
S7: newborn crocodile treatment
Classifying the newborn crocodile into one class: strengthening crocodile; the second type is as follows: a weak crocodile; three types are as follows: defective crocodiles, malformed crocodiles; four types: and (4) processing dead crocodiles.
The judgment standards and processing modes of the types are as follows:
one type is as follows: the initial shelling time is normal, the physique is strong and lively, and the weight is moderate.
The second type is as follows: premature or late shelling time, a large and bluish abdomen, lassitude, struggle and weakness in holding hands, and hoarseness.
Three types are as follows: the young crocodile with the blind neck crooked and limping limbs disabled needs to be separated from the healthy young crocodile and carefully nursed.
Four types: for the dead crocodile, harmless treatment is carried out according to GB 16548 'harmless treatment regulations for livestock and poultry disease carcass and products thereof'.
The following data were collected from 5 months 2019 to 8 months 2019, the number of alligator eggs used in each example trial was 900, and by varying the parameters of the hatching process, the relevant hatching data was collected and recorded as in table 1 below:
TABLE 1
As can be seen from the table above, the operation steps of 31-33 ℃ of temperature, 80-85% of humidity, 1m of interval between hatching trays and the like are adopted, so that the healthy crocodile rate and the hatching rate can be greatly improved, and the number of residual crocodiles and dead crocodiles can be reduced.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (8)
1. The artificial incubation method of the crocodile is used for incubating varieties of the crocodile with the gulf and the Siamese, and is characterized by comprising the following steps:
s1: selecting hatching eggs; in the crocodile egg laying season, finding out egg holes on a crocodile egg laying field, taking out crocodile eggs, carrying out primary identification, and selecting crocodile eggs with obvious fertilization;
s2: sterilizing; disinfecting the hatching tray and the hatching chamber by adopting a fumigation disinfection method or a spray disinfection method;
s3: hatching; placing the animal with the obviously fertilized alligator eggs into a sterilized hatching tray in an upward mode, and sending the animal into a hatching chamber for hatching, wherein the indoor temperature of the hatching chamber is set to be 28-33 ℃ by adopting a constant-temperature constant-humidity generator, the relative humidity is set to be 80-100%, and young alligators can be hatched after 70-90 days; performing egg lighting for three times in the hatching process, respectively lighting for 30 days, 60 days and 80 days, and removing clear eggs, dead embryo eggs and smelly eggs in time in the egg lighting process;
before the step S1, the method further includes the following steps:
s0: building a hatching room; the hatching room adopts cement frame construction to set up, builds through the heated board to divide into hatching room and child care tank, be provided with a plurality of tray sets that constitute with a plurality of range upon range of hatching trays in the hatching room, each tray set is neatly put, and the interval of every layer of hatching tray is 1m, and the top of tray set is greater than 1.5m with the distance on hatching room roof.
2. The artificial hatching method for crocodile according to claim 1, wherein in the step S2, the fumigation method is: 30g of formalin and 15g of potassium permanganate are put into a ceramic ware bowl according to the volume of each cubic meter, and fumigation is carried out under the conditions that the temperature is 24-27 ℃ and the relative humidity is 70-80 percent, wherein the disinfection time is 25-30 min.
3. The artificial hatching method of crocodile according to claim 1, wherein in the step S2, the spray disinfection method is: adopting 0.3 to 0.5 percent of peroxyacetic acid and 0.015 percent of Baidu for respectively spraying and disinfecting once.
4. The method for artificially hatching crocodiles according to claim 1, wherein in the step S3, the ratio of young crocodiles hatched from male and female crocodiles is controlled by controlling the temperature in the hatching chamber, the temperature is between 28 ℃ and 30 ℃ and the female crocodiles are easy to hatch, and the temperature is between 32 ℃ and 33 ℃ and the male crocodiles are easy to hatch .
5. The artificial hatching method for crocodiles according to claim 1, wherein the method for judging the egg-phase characteristics of the photo is as follows: the embryo development is normal, the embryo head is enlarged and is in a spider web shape, the eyespot is obvious, the embryo bead is formed, and the whole egg is slightly red; the embryo body of the weak embryo egg is small, the blood vessel is thin and weak to distribute, and the eyeball is not obvious; when the eggs are photographed without the eggs, the eggs are transparent, and when the eggs are rotated, only the egg yolks float; cloudiness, white color, presence of blood rings, blood arcs, blood streaks or blood spots in the dead embryo eggs.
6. The artificial hatching method for crocodiles according to claim 1, wherein the egg-phase characteristic judging method for the second photo comprises the following steps: the boundary of the embryo-strengthening egg is clear, and fresh red blood vessels are distributed outside the air chamber; the small end of the weak embryo egg has partial area without blood vessel distribution; the boundary of the dead embryo egg air chamber is fuzzy and is in a black ball shape, or residual blood vessels are left.
7. The artificial hatching method for crocodiles according to claim 1, wherein the three-shot egg-phase characteristic judgment method comprises the following steps: the air chamber of the embryo-strengthening egg is enlarged and highly inclined, partial blood vessel distribution is still seen at the edge of the air chamber, the whole egg is dark in color outside the air chamber, and the head, neck or body of the embryo can move against the membrane of the air chamber; the air chamber of the weak embryo egg is relatively flat, and the edge of the air chamber has more blood vessels; the boundary of the air chamber of the dead embryo egg is fuzzy, and the interior of the egg is turbid.
8. The artificial hatching method for the crocodile according to claim 1, wherein the hatching room adopts a fully-closed one-way flow operation, and the operation sequence is as follows: personnel disinfection, hatching egg receiving and identification, disinfection and warehousing, tray loading, preheating and disinfection, hatching and conservation.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101438690A (en) * | 2008-12-26 | 2009-05-27 | 胡诚礼 | Artificial propagation method of crocodile |
| DE202009010861U1 (en) * | 2009-08-11 | 2009-10-08 | Rauscher, Alexander | An amphibious vehicle |
| CN103536943A (en) * | 2013-11-06 | 2014-01-29 | 广东宏益鳄鱼产业有限公司 | Disinfection method for hatching room of crocodile hatching eggs and workers |
| CN103548773A (en) * | 2013-11-06 | 2014-02-05 | 广东宏益鳄鱼产业有限公司 | Environment control method for crocodile hatching room |
| CN103583413A (en) * | 2013-11-06 | 2014-02-19 | 广东宏益鳄鱼产业有限公司 | Method for cleaning crocodile hatching eggs |
| CN203860260U (en) * | 2014-06-18 | 2014-10-08 | 中国长江三峡集团公司中华鲟研究所 | Yangtze alligator egg hatcher capable of automatically controlling temperature and preserving moisture |
| CN104872059A (en) * | 2015-05-24 | 2015-09-02 | 梁金莲 | Artificial breeding method for Crocodylus siamensis |
| CN104996361A (en) * | 2015-07-31 | 2015-10-28 | 郑荣 | African ostrich artificial feeding method |
| CN110839593A (en) * | 2019-12-12 | 2020-02-28 | 诸暨市勇远箱包有限公司 | Energy-saving incubator for crocodile eggs |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010054022A1 (en) * | 2008-11-05 | 2010-05-14 | Institute Of Multiple Myeloma & Bone Cancer Research | An improved chorioallantoic membrane assay |
| CN105494240B (en) * | 2015-12-04 | 2018-03-13 | 中山大学 | A kind of comprehensive breeding method of crocodile tortoise |
-
2020
- 2020-06-05 CN CN202010507746.7A patent/CN111685077B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101438690A (en) * | 2008-12-26 | 2009-05-27 | 胡诚礼 | Artificial propagation method of crocodile |
| DE202009010861U1 (en) * | 2009-08-11 | 2009-10-08 | Rauscher, Alexander | An amphibious vehicle |
| CN103536943A (en) * | 2013-11-06 | 2014-01-29 | 广东宏益鳄鱼产业有限公司 | Disinfection method for hatching room of crocodile hatching eggs and workers |
| CN103548773A (en) * | 2013-11-06 | 2014-02-05 | 广东宏益鳄鱼产业有限公司 | Environment control method for crocodile hatching room |
| CN103583413A (en) * | 2013-11-06 | 2014-02-19 | 广东宏益鳄鱼产业有限公司 | Method for cleaning crocodile hatching eggs |
| CN203860260U (en) * | 2014-06-18 | 2014-10-08 | 中国长江三峡集团公司中华鲟研究所 | Yangtze alligator egg hatcher capable of automatically controlling temperature and preserving moisture |
| CN104872059A (en) * | 2015-05-24 | 2015-09-02 | 梁金莲 | Artificial breeding method for Crocodylus siamensis |
| CN104996361A (en) * | 2015-07-31 | 2015-10-28 | 郑荣 | African ostrich artificial feeding method |
| CN110839593A (en) * | 2019-12-12 | 2020-02-28 | 诸暨市勇远箱包有限公司 | Energy-saving incubator for crocodile eggs |
Non-Patent Citations (1)
| Title |
|---|
| 浅谈鳄鱼的人工孵化和养殖;张戈;《黑龙江科技信息》;20040915(第9期);第150页 * |
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