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2. The length of time the eggs are preserved and placed is closely related to the temperature. When the temperature is constant, the shorter the preservation time, the higher the hatching rate; conversely, the hatching rate is lower, and the incubation period is also prolonged. In the environment temperature of 18 °C, the preservation period of the goose eggs within 4 days incubation, the hatching rate of fertilized eggs up to 97%; if the hatching after 4 days, the hatching rate will decrease by 2% to 4% every more than 1 day , so it is extremely important to choose fresh eggs and gooses.
When the eggs were stored, they were placed horizontally and no abnormal embryonic development was observed.
3. Temperature control (1) Preheating of eggs Because of the special structure of shell membrane, eggshell, stomata and inner and outer membrane of the eggs, the eggs are slowly heated during the early stage of hatching, so the eggs should be in the temperature of 36-38°C before hatching. After warm-up for 6 to 8 hours, it is advisable to re-incubate.
(2) The suitable temperature is due to the slower heating of the eggs in the early stage and the relatively high fat content in the middle and late stages, resulting in a large amount of physiological heat and the special structure of the goose eggs, which results in difficulty in the heat dissipation of the embryos. Therefore, during the incubation process, according to the characteristics of embryonic development, the incubation period can be divided into 1 to 7 days before hatching, 8 to 14 days in the middle of incubation, 15 to 27 days in the later period of hatching, and 28 to 30 days in the hatching period. Schwing’s principle is: high in the early stage, medium in the middle period, slightly lower in the later period, slightly higher in the hatching period, the temperature is 1 to 7 days at 38°C, 8 to 14 days at 37.8°C, and 15 to 27 days at 37.3°C; 28 to 30 days at 37.5°C.
(3) Humidity control The principle of controlling humidity is: During the entire incubation process, two heads are high and the middle is low. Pre-humidity is high, so that the eggs can be heated well and evenly; low in the medium term is conducive to the embryo's metabolism; to the late stage and the hatching stage, the purpose of raising the humidity is to dissipate too much physiological heat, so that the eggshell structure is loose, so that the shell Chubby. However, since the eggs are hatched in batches, in order to allow normal embryo development at each age, the humidity in the incubator is 55% to 60%, and the humidity in the hatcher is 65%. Because the humidifying effect of the incubator is not ideal, when the humidity is low, hot and humid cloths and warm water of about 40°C can be sprayed.
It must be noted that when the humidity exceeds 75% and ventilation is poor, embryos die due to lack of gas exchange. Therefore, with the growth of the embryonic age, the throttle should be increased. For example, according to the Aibo brand smart incubator, one can not open the throttle in 1 to 3 days; 4 to 7 days can open a throttle; 8 to 15 days can open two throttles; After 15 days, three dampers can be opened, and the incubator room must be equipped with ventilation equipment so that the filthy gas discharged from the embryo can be discharged outside in time, and at the same time, fresh air can be exchanged for the embryo to breathe.
4. The first screening of the egg was performed on the 7th to the 8th day of age. At this time, the non-fertilized eggs were mainly picked. The second time the egg is littered for 27 to 28 days, this time it is mainly determined by observing the development of the embryo. If a well-developed embryo is found, the boundary of the air chamber is bent, the embryo is occupied, and the neck is compressed in the air chamber. There will be fetal movements from time to time.
The allantoic sac of the goose embryo is closed at the tip of the egg from day 17 to day 19, enveloping the protein, so during this period, the embryo can be found to be behind. If not, it indicates that the embryo is lagging behind, which may be caused by low temperature, and the temperature may be appropriately increased by 0.5°C.
5. Cool eggs and sprayed cold eggs and water spray are effective measures to adjust temperature and humidity, and have a great influence on hatching rate.
(1) Cold eggs are generally not cool before hatching. According to the above-mentioned Schwarz scheme, the egg temperature in the middle and later stages can reach 38.8°C. Because the surface area of ​​the goose eggshell is relatively small and the pores are small, the heat dissipation is slow. If too much physiological heat is not promptly dissipated at this time, the embryos may become suffocated. In the egg. Cold eggs can strengthen the gas exchange of the embryos and eliminate the build-up of heat in the eggs. Incubate at 17 to 19 days, open the door, pull the blocker that needs cold eggs out of the machine, immediately close the door, cool eggs once a day; 26 to 30 days embryo age, physiological heat, cool eggs 3 to 4 times a day . The length of cool eggs ranges from time to time. According to the situation, they can be flexibly controlled. Generally, thermometers and eyelid test temperatures are combined to check the temperature. When the egg temperature drops to 35°C, the eyelids are not hot to the eyelids when the temperature is tested, or the head is slightly hot and the head is not hot, indicating that the temperature is normal; if the large or upper part of the egg is hot, it indicates that the temperature is high.
(2) Water spray is currently considered to be the key to improving the hatching rate of goose eggs. There are three water spray effects: one is the destruction of the shell membrane; the second is to promote the continuous contraction and expansion of the egg shell and shell membrane, destroy their integrity, increase permeability, speed up the evaporation of water and egg normal weight loss, so that the gas chamber volume Bigger and more oxygen supply; the third is to cause the eggshell to be crunchy. The shell of the goose egg is thick and the shell is hard. The former affects the evaporation of gas and moisture, and the latter hinders clam shells. The presence of the membrane on the shell is beneficial for the first few days of incubation. As the embryonic age continues to increase, especially when the allantoic membrane is closed and needs to inhale more oxygen and excrete a large amount of metabolites, the membrane begins to shell out. Has an adverse effect on the development of the embryo. To get rid of it, water must be sprayed on the eggs for 17 to 31 days (advanced water spray is not good for the collapse of the allantois). When the temperature is high, cold water is sprayed, and when the temperature is low, spray with warm water of 35-40°C. Spray once a day and spray the eggs until they are soaked. Allow to dry before hatching. Under the effect of repeated egg sprays and carbon dioxide in the air, the calcium carbonate of the eggshell becomes calcium bicarbonate, and its properties change from hard to crunchy, the goslings are easy to be broken, and stillbirths during hatching are reduced.
6. The hatching and inspection of young chicks and quail chicks break the eggshell and place the break upwards. If it is found that it is difficult to hatch the gosling, it is necessary to gently pull the goose chick's head out of the shell and let it go out of the shell.
Contact: Ms. Sunny Wang
Product Description
Name
Canned Pink Salmon
Flavor
Brine, Oil
Type
Bone-in and skin-on, bone-less and skin-less
Certificates
EU, FDA, BRC, HALAL,HACCP,KOSHER
Net weight
170g, 185g, 400g, 417g, 425g, 1kg, 1.88kg.
Brand
Our brand or OEM, ODM
Shelf life
3/4 Years
MOQ
1X20'FCL
Payment terms
T/T, L/C
Delivery time
25 days after label artwork confirmed and advance payment done.
Packing
normal lid or easy open,paper label or lithio can, paper carton or shrinked by tray
EU NO.
3302/01034
RUSSIA NO.
3302/01034
Shipping docs
Commercial Invoice
Packing List
Bill of Lading
Certificate Of Origin/ Form A
Health Certificate
Veterinary Certificate
Catching certificate
Or as per customer`s request
1. According to the characteristics of AiBai Intelligent Incubator, AiAi Smart Incubator consists of two bodies: incubator and hatcher, which can automatically adjust temperature, ventilation, turning eggs and humidification. However, the humidifying effect is not ideal, so during the incubation process, according to the actual humidity, artificially adding wet cloth to the incubator and the hatcher and spraying the warm water to the machine regularly. Egg carts have slides that allow the carts to pull out and advance.