CN105409877A - Low-temperature hatching method for goslings - Google Patents
Low-temperature hatching method for goslings Download PDFInfo
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- CN105409877A CN105409877A CN201510849794.3A CN201510849794A CN105409877A CN 105409877 A CN105409877 A CN 105409877A CN 201510849794 A CN201510849794 A CN 201510849794A CN 105409877 A CN105409877 A CN 105409877A
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- 230000012447 hatching Effects 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000007514 turning Methods 0.000 claims abstract description 8
- 230000003203 everyday effect Effects 0.000 claims abstract description 7
- 241000272814 Anser sp. Species 0.000 claims description 43
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 36
- 238000011534 incubation Methods 0.000 claims description 22
- 230000001954 sterilising effect Effects 0.000 claims description 14
- 238000004659 sterilization and disinfection Methods 0.000 claims description 14
- 230000013020 embryo development Effects 0.000 claims description 10
- 102000002322 Egg Proteins Human genes 0.000 claims description 9
- 108010000912 Egg Proteins Proteins 0.000 claims description 9
- 210000003278 egg shell Anatomy 0.000 claims description 9
- 238000003958 fumigation Methods 0.000 claims description 9
- 238000004321 preservation Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000012286 potassium permanganate Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 230000003442 weekly effect Effects 0.000 claims description 3
- 235000013601 eggs Nutrition 0.000 abstract description 95
- 210000001161 mammalian embryo Anatomy 0.000 abstract description 13
- 238000009395 breeding Methods 0.000 abstract description 3
- 230000001488 breeding effect Effects 0.000 abstract description 3
- 238000007689 inspection Methods 0.000 abstract 2
- 238000001816 cooling Methods 0.000 abstract 1
- 210000002257 embryonic structure Anatomy 0.000 abstract 1
- 208000021267 infertility disease Diseases 0.000 abstract 1
- 241000272525 Anas platyrhynchos Species 0.000 description 3
- 230000004060 metabolic process Effects 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 231100000518 lethal Toxicity 0.000 description 2
- 230000001665 lethal effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 244000144977 poultry Species 0.000 description 2
- 230000004083 survival effect Effects 0.000 description 2
- 241000272809 Anser anser Species 0.000 description 1
- 241000272496 Galliformes Species 0.000 description 1
- 241000287828 Gallus gallus Species 0.000 description 1
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 206010053615 Thermal burn Diseases 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 210000003323 beak Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- NKWPZUCBCARRDP-UHFFFAOYSA-L calcium bicarbonate Chemical compound [Ca+2].OC([O-])=O.OC([O-])=O NKWPZUCBCARRDP-UHFFFAOYSA-L 0.000 description 1
- 229910000020 calcium bicarbonate Inorganic materials 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 229940012466 egg shell membrane Drugs 0.000 description 1
- 230000008011 embryonic death Effects 0.000 description 1
- 210000000744 eyelid Anatomy 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001605 fetal effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002207 metabolite Substances 0.000 description 1
- 235000008935 nutritious Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000384 rearing effect Effects 0.000 description 1
- 230000028016 temperature homeostasis Effects 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 1
- 230000035899 viability Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a low-temperature hatching method for goslings. The method comprises the following steps: one day before hatching breeding eggs, firstly maintaining the temperature of a hatching house to 23-25 DEG C and the humidity of the hatching house to 55%; turning the eggs once every 2 hours from the first day of hatching to the twenty-sixth day of hatching, and stopping egg turning at the twenty-seventh day of hatching; carrying out first-time candling inspection at the seventh day of hatching, taking out infertile eggs and dead fertilized eggs, and observing embryo developmental condition; carrying out second-time candling inspection at the twenty-third day of hatching, taking out dead embryos, and withdrawing the eggs; and carrying out egg cooling operation every day from the sixteenth day of hatching to the twenty-sixth day of hatching. The method disclosed by the invention has the characteristic of high hatching ratio.
Description
Technical field
The present invention relates to bird hatching technique field, particularly relate to a kind of low temperature goose seedling and go out shell side method.
Background technology
Xinjiang flies that goose original name has Yi Li goose, Tacheng flies goose, grey goose, careless goose, wild goose goose etc., belong to homonymus or synonymum Xinjiang domestic animals and fowls kind will and be referred to as Xinjiang and fly goose.Belong to rare bird.Xinjiang flies goose, and to originate from grey goose (Anseranser) be the semi-wild type new varieties that domestication history is long, domestication degree is not high.Xinjiang flies goose and puts in a suitable place to breed between blue mountains and green waters, and food is careless and naturally grow up, and its physique is healthy and strong, and premunition, resistance, strong adaptability, resistance to extensive husbandry, product comprehensive utilization value is high, without any public hazards and pollution.It is plant-eating animal that Xinjiang flies goose, and physique is strong, viability is strong, can circle in the air, resist cold, anti-disease ability exceedes chicken, duck.Xinjiang flew goose and was included in first national livestock and poultry species protection of resources register by the Ministry of Agriculture in August, 2000.Goose is nutritious, and fat content is low, and unsaturated fatty acid content is high, very favourable to health.But in traditional poultry rearing industry, the hatching for the young seedling of gaggle is all be all generally adopt natural characteristic hatching, and its incubation cycle is longer, is unfavorable for the medium-and-large-sized raising base of grouping of the world economy, batch production.And utilizing that the hatching technique of the goose kind egg of incubator is in the field of business does not have general standard, each goose field is all the hatching technique adopting oneself, the hatching characteristics in hatching process and to plant the hatching rate of egg also uneven.
Summary of the invention
In view of this, the embodiment of the present invention provides a kind of low temperature goose seedling to go out shell side method, and main purpose improves hatching rate.
For achieving the above object, the present invention mainly provides following technical scheme:
On the one hand, embodiments provide a kind of low temperature goose seedling and go out shell side method, comprise the steps:
Plant egg to enter to incubate the previous day, first the indoor temperature of hatching house is remained on 23-25 DEG C, humidity is 55%, and the temperature in hatch machine is set as 38 DEG C;
Enter to incubate 1-26 days every 2 hours egg-turnings once, within the 27th day, stop egg-turning;
Enter to incubate to carry out for the 7th day first time according to egg, take out wind egg and dead smart egg, and observe embryonic development situation; Enter to incubate to carry out for the 23rd day second time according to egg, take out stillborn foetus and receive egg;
Until the 26th day from the 16th day that enters to incubate, every day need carry out cool egg operation.
As preferably, it is as follows to hatch built-in temperature between the incubation period: 1-9 days 38 DEG C, 10-16 days 37.5 DEG C, 17-22 days 37 DEG C; Between the incubation period, hatch machine humidity is as follows: 1-9 days 65%, 10-26 day 55%, 27-31 day 70%.
As preferably, the mode of cool egg or the outer cool egg of machine in described cool egg employing machine; Wherein in machine, cool egg is power cutoff, the cool egg of door capable of being opened air blast; The outer cool egg of machine, for opening gate, releases the cool egg of egg rack car.
As preferably, cool egg in employing machine during hatching, closes for circuit temperature, stops, to temperature, opening gate, allow blower fan continue to run by the gross, every day cool egg 2-3 time, each 30-40 minute; When entering to incubate, the outer cool egg of machine need be adopted in batches, needing the incubator tray of cool egg to take out from hatch machine, at room temperature cool egg.
As preferably, on eggshell, in cool egg process, spray the warm water of 25-30 DEG C.
As preferably, described kind of egg also needs sterilization: first time sterilization is after goose house egg collection within half an hour; Second time sterilization is carried out when entering to incubate; Third time carries out when rule.
As preferably, described kind of egg sterilization methyl alcohol fumigation method is carried out, every cubic metre of space consumption: methyl alcohol 28ml, 14 grams, potassium permanganate; If use solid methanol fumigation, every cubic metre of space solid methanol 30 grams heating fumigation.
As preferably, wait for that the preservation condition into the kind egg of incubating is after first time sterilization: plant egg and should be kept at clean nice and cool, in the egg storehouse of ventilating good, storage temperature is 10 DEG C ~ 15 DEG C, and relative moisture remains on 65% ~ 70%.
As preferably, plant in egg preservation process, need weekly upset.
As preferably, the weight of described kind of egg should between 120g ~ 160g; Described kind of egg egg shape index should between 0.70 ~ 0.78; Within planting the freshness requirements preservation 7d of egg; The air chamber width of planting egg is no more than 0.5cm, and hangh unit is more than 75; The eggshell color of planting egg is white, and shell thickness is at more than 0.4mm.
Compared with prior art, beneficial effect of the present invention is:
The low temperature goose seedling that the embodiment of the present invention provides goes out shell side method and controls incubation temperature 23-25 DEG C at the hatching initial stage, to stimulate carbohydate metabolism, promote embryonic development, progressively incubation temperature is reduced in hatching mid-term and hatching later stage, utilize that embryo's carry out vendor's stand hatching from temperature, the requirement that in incubation period, incubation temperature is total is low after front height, is strictly on guard against overtemperature in the intermediary and later stages of hatching.Avoid unnecessary loss, thus the actual survival rate significantly improving young goose.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail, but not as a limitation of the invention.In the following description, the not necessarily same embodiment that different " embodiment " or " embodiment " refers to.In addition, special characteristic, structure or feature in one or more embodiment can be combined by any suitable form.
Implementation column 1
Plant the source of egg: plant egg and must clean not contaminated, eggshell surface is smooth, eggshell well-formed.Kind egg size amount for hatching should between 120g ~ 160g.Kind egg egg shape index for hatching should between 0.70 ~ 0.78.Within planting the freshness requirements preservation 7d of egg, the air chamber width of egg is no more than 0.5cm, and hangh unit is more than 75.The eggshell color of planting egg is white, and shell thickness is at more than 0.4mm.
The sterilization of kind of egg: first time sterilization is after goose house egg collection within half an hour.Second time sterilization is carried out when entering to incubate.Third time carries out when rule (or upper stand).Sterilization method is undertaken by methyl alcohol fumigation method without exception, every cubic metre of space consumption: methyl alcohol 28ml, 14 grams, potassium permanganate, if use solid methanol fumigation, every cubic metre of space solid methanol 30 grams heating fumigation, does not soak behaviour with liquor potassic permanganate or other liquid and wash.
Plant the preservation of egg: plant egg and should be kept at clean nice and cool, in the storage egg storehouse of ventilating good.The temperature in storage egg storehouse is set in 10 DEG C ~ 15 DEG C, and relative moisture remains on 65% ~ 70%.During preservation, need weekly to overturn kind of an egg.As just entered to deposit within one week, planting egg in egg holder, keeping large direction head-up, when being saved in one week, the small end of upset kind of egg upward.
Preparation before hatching of breeding eggs: enter to incubate first three day elder generation and each for hatch machine parts instrument is carried out maintenance overhaul.And hatching built-in temperature is fixed on 38 DEG C.The room temperature of hatching house is 23-25 DEG C.Hatching indoor relative humidity 55%.
Thermometric: after 12 hours that connect at power supply, with clinical thermometer measure before, during and after in hatch machine respectively, temperature on site, six, upper and lower, left and right, and remember the temperature on these six sites, for later temperature adjustment or the dish that falls provide foundation.Measure relative moisture in machine, Row sum-equal matrix of going forward side by side.Hatching built-in temperature control specific as follows: 1-9 days 38 DEG C, 10-16 days 37.5 DEG C, 17-22 days 37 DEG C.Hatch machine humidity controls specific as follows: 1-9 days 65%, 10-26 day 55%, 27-31 day 70%.Between the incubation period, the room temperature of hatching house is 23-25 DEG C, hatching indoor relative humidity 55%.
Hatching of breeding eggs: enter to incubate and the previous day hatching house's temperature is remained on 23-25 DEG C, humidity is 55%; When kind egg enters to incubate, kind of an egg is placed by length according to the holding time respectively; As the holding time is shorter, the kind egg within a week keeps large direction head-up in egg holder, and the holding time is longer, and the small end of the kind egg more than a week upward; 1-26 days every 2 hours egg-turnings of hatching once, stop egg-turning on the 27th day; Within 7th day, carry out first time according to egg, object takes out wind egg and dead smart egg, and observe embryonic development situation; Within 23 days, carry out second time according to egg, object takes out stillborn foetus to receive egg.Until the 26th day from the 16th day that enters to incubate, every day need carry out cool egg operation.If hatch by the gross, cool egg in employing machine, namely closes for circuit temperature, stops, to temperature, opening gate, allows blower fan continue to run, every day cool egg 2-3 time, each 30-40 minute; Also can feel not scald with eyelid temperature-sensitive also do not send out cool (also can detect with temperature measuring equipments such as infrared radiation thermometers, concrete temperature range should be 20-30 DEG C) this cool egg can be completed.If enter to incubate in batches, because egg is different for age, therefore need the outer cool egg of employing machine, namely needing the incubator tray carrying out cool egg to take out from hatch machine, at room temperature cool egg.Time of cool egg number of times and each cool egg will adjust according to concrete conditions such as the speed of season and embryonic development.Hot season embryonic development is fast, can increase cool egg number of times or increase the cool egg time, otherwise reduces.Incubating to the 28th day, about having 10% goose embryo beak shell (beat and chew), under kind of Egg Quality and the normal situation of incubation condition, it is that hatching is complete that goose egg was incubated to 31 days.Under kind of Egg Quality and the normal situation of incubation condition, it is that hatching is complete that goose egg was incubated to 31 days.
Preferred as above-described embodiment, in cool egg process, sprays the warm water pearl of 25-30 DEG C, to accelerate temperature-fall period on eggshell.Suitable warm water can make the calcium carbonate in eggshell become calcium bicarbonate and become fragile, and is conducive to broken shell, also can prevent egg shell membrane and protein film overdrying, causes young fowl fetal hair and its generation adhesive hair phenomenon.
Temperature is the topmost factor of goose embryonic development, in hatching process, embryonic development is very responsive for the change of temperature, suitable incubation temperature is the guarantee that goose embryo normal growth is grown, correct grasp and utilization incubation temperature are the most important condition improving incubation rate, give temperature scale standard by various factors in hatching process, should grasp utilization flexibly giving in warm scope, small-sized goose kind should be slightly low to temperature.Incubation temperature should lower than the winter, spring etc., although embryonic development has certain adaptive capacity to incubation temperature, is above the normal development that can affect embryo to warm scope, because goose embryo is to a little higher than or be responsive lower than suitable scope.The too high embryo of impact of temperature grows, and even causes death, and the lethal boundary of high temperature to embryo is narrower, and the lethal boundary of dangerous larger low temperature to embryo is wider, and danger is relatively little.
Because the fat content of goose egg and heat levels are than egg in the embodiment of the present invention, duck's egg is high, so the incubation temperature of setting is than egg, duck's egg is low.At the hatching initial stage, the metabolism of embryo is in the junior stage, heat production is less, again without Thermoregulation ability, need more stable temperature, to stimulate carbohydate metabolism, promote embryonic development, temperature is too high, easily make heart and blood vessel overtired and hemorrhage, there are the phenomena of mortality, hatch mid-term, along with the growth of embryo, in body, heat production increases gradually, incubation temperature should suitably reduce, the hatching later stage, embryo produces a large amount of body heat, at this moment can utilize that embryo's carry out vendor's stand hatching from temperature, if reduce incubation temperature in hatching front portion, distributing of body heat will be hindered, build up harmful metabolite, cause embryonic death, the requirement that in incubation period, incubation temperature is total is low after front height, in hatching, later stage is strictly on guard against overtemperature.So going out shell technology with low temperature is exactly in order to avoid unnecessary loss, thus the actual survival rate significantly improving young goose.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (10)
1. low temperature goose seedling goes out shell side method, it is characterized in that, comprises the steps:
Plant egg to enter to incubate the previous day, first hatching house's temperature is remained on 23-25 DEG C, humidity is 55%;
Enter to incubate 1-26 days every 2 hours egg-turnings once, within the 27th day, stop egg-turning;
Enter to incubate to carry out for the 7th day first time according to egg, take out wind egg and dead smart egg, and observe embryonic development situation; Enter to incubate to carry out for the 23rd day second time according to egg, take out stillborn foetus and receive egg;
Until the 26th day from the 16th day that enters to incubate, every day need carry out cool egg operation.
2. low temperature goose seedling according to claim 1 goes out shell side method, it is characterized in that, it is as follows to hatch built-in temperature between the incubation period: 1-9 days 38 DEG C, 10-16 days 37.5 DEG C, 17-22 days 37 DEG C; Between the incubation period, hatch machine humidity is as follows: 1-9 days 65%, 10-26 day 55%, 27-31 day 70%.
3. low temperature goose seedling according to claim 1 goes out shell side method, it is characterized in that, the mode of cool egg or the outer cool egg of machine in described cool egg employing machine; Wherein in machine, cool egg is power cutoff, the cool egg of door capable of being opened air blast; The outer cool egg of machine, for opening gate, releases the cool egg of egg rack car.
4. low temperature goose seedling according to claim 3 goes out shell side method, it is characterized in that, cool egg in employing machine during hatching, closes for circuit temperature, stop, to temperature, opening gate, allow blower fan continue to run by the gross, every day cool egg 2-3 time, each 30-40 minute; When entering to incubate, the outer cool egg of machine need be adopted in batches, needing the incubator tray of cool egg to take out from hatch machine, at room temperature cool egg.
5. low temperature goose seedling according to claim 1 goes out shell side method, it is characterized in that, sprays the warm water of 25-30 DEG C in cool egg process on eggshell.
6. low temperature goose seedling according to claim 1 goes out shell side method, it is characterized in that, described kind of egg also needs sterilization: first time sterilization is after goose house egg collection within half an hour; Second time sterilization is carried out when entering to incubate; Third time carries out when rule.
7. low temperature goose seedling according to claim 6 goes out shell side method, it is characterized in that, described kind of egg sterilization methyl alcohol fumigation method is carried out, every cubic metre of space consumption: methyl alcohol 28ml, 14 grams, potassium permanganate; If use solid methanol fumigation, every cubic metre of space solid methanol 30 grams heating fumigation.
8. low temperature goose seedling according to claim 1 goes out shell side method, it is characterized in that, wait for that the preservation condition into the kind egg of incubating is after first time sterilization: plant egg and should be kept at clean nice and cool, in the egg storehouse of ventilating good, storage temperature is 10 DEG C ~ 15 DEG C, and relative moisture remains on 65% ~ 70%.
9. low temperature goose seedling according to claim 8 goes out shell side method, it is characterized in that, plants in egg preservation process, needs weekly upset.
10. low temperature goose seedling according to claim 1 goes out shell side method, it is characterized in that, the weight of described kind of egg should between 120g ~ 160g; Described kind of egg egg shape index should between 0.70 ~ 0.78; Within planting the freshness requirements preservation 7d of egg; The air chamber width of planting egg is no more than 0.5cm, and hangh unit is more than 75; The eggshell color of planting egg is white, and shell thickness is at more than 0.4mm.
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| CN201510849794.3A CN105409877A (en) | 2015-11-26 | 2015-11-26 | Low-temperature hatching method for goslings |
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| CN201510849794.3A CN105409877A (en) | 2015-11-26 | 2015-11-26 | Low-temperature hatching method for goslings |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105850873A (en) * | 2016-04-11 | 2016-08-17 | 安庆永强农业科技股份有限公司 | Method for breeding muscovy ducks |
| CN107242197A (en) * | 2017-07-20 | 2017-10-13 | 江苏省农业科学院 | A kind of hatching method of goose hatching egg |
| CN109496971A (en) * | 2018-11-19 | 2019-03-22 | 上海动物园 | A kind of artificial incubation method of spot mouth Sphensicus |
| CN109717147A (en) * | 2019-03-12 | 2019-05-07 | 浙江师范大学 | Black Swan hatching of breeding eggs method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105850873A (en) * | 2016-04-11 | 2016-08-17 | 安庆永强农业科技股份有限公司 | Method for breeding muscovy ducks |
| CN105850873B (en) * | 2016-04-11 | 2018-08-21 | 安庆永强农业科技股份有限公司 | Kind duck mating system |
| CN107242197A (en) * | 2017-07-20 | 2017-10-13 | 江苏省农业科学院 | A kind of hatching method of goose hatching egg |
| CN107242197B (en) * | 2017-07-20 | 2019-09-03 | 江苏省农业科学院 | A kind of hatching method of goose hatching egg |
| CN109496971A (en) * | 2018-11-19 | 2019-03-22 | 上海动物园 | A kind of artificial incubation method of spot mouth Sphensicus |
| CN109496971B (en) * | 2018-11-19 | 2021-08-13 | 上海动物园 | Artificial hatching method for penguin with spotted-mouth ring |
| CN109717147A (en) * | 2019-03-12 | 2019-05-07 | 浙江师范大学 | Black Swan hatching of breeding eggs method |
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