1. Disinfection of incubators and hatcheries: Before hatching, the incubators and hatcheries should be scrubbed and fumigated with potassium permanganate and formalin. 2. Selection and disinfection of breeding eggs: It is best to choose high-yield, high-quality and disease-free breeding eggs and disinfect them before hatching. 3. Incubation of eggs: hatch eggs in batches and keep proper temperature and humidity. 4. Incubation management: regularly open the incubator for ventilation and turn the eggs to cool down. 5. Pick chicks: Pick chicks every 4-6 hours when the incubation period is 20-2 1 day. 6. Post-work: Pick out dead chickens and hairy eggs, and carry out artificial midwifery for embryos with difficulty in hatching.

First, the technology of incubating chickens in incubators.

1, disinfection of incubator and incubator

One week before incubation, the incubator and incubation room were scrubbed and fumigated with potassium permanganate and formalin. Open doors and windows after fumigation for 30-40 minutes.

2. Selection and disinfection of breeding eggs

Eggs for hatching are fresh eggs within 7 days in spring and autumn and 5 days in summer. It is better to breed eggs with high yield, high quality and no disease, and meet the requirements of clean surface, oval shape, egg weight of 50-60 grams, uniform shell thickness, pure color and no damage. The selected eggs must be disinfected before they can hatch. Put the eggs in the incubator, and then fumigate with chemicals, with 2 1g potassium permanganate and 42ml formalin per square meter of space.

3. The egg has hatched

Put the selected eggs into the incubation room in batches. When coding, the eggs should be planted with the big head up and the small head down to avoid over-squeezing and over-loosening. It is best to keep the relative humidity in the incubator at 60-70%, with the temperature of 37.8 degrees in the first 18 days and 37.5-37.3 degrees in the later period, so as to ensure that the number of embryos can reach more than 70%.

4. Incubation management

When incubating, the incubator should be opened regularly for ventilation. Ventilation can keep the air fresh, reduce carbon dioxide and replenish oxygen, which is beneficial to the normal development of embryos. Eggs should be turned every hour during the first 10 day of incubation, every two hours during the first11-kloc-0/6 day, and stopped turning on the first 18 day. A lot of heat will be generated in the late incubation period, and the eggs can be cooled twice a day.

5. Pick a chicken

When hatched to 20-2 1 day, a large number of hatched chickens began to appear, and then the chickens were picked out every 4-6 hours. Pick out chickens with good navel contraction and dry villi, while some weak chickens with swollen bright red and wet villi should temporarily stay in the chicken tray until next time.

6. Post-work

After hatching to 2 1 day, when most chickens hatch, they should be cleaned. Pick out dead chickens and hairy eggs, and carry out artificial midwifery for embryos that are difficult to hatch. After hatching is completed, the incubator should be cleaned and disinfected.

Second, what conditions do you need to hatch chickens?

1, temperature

What is the incubation temperature in principle? High in the early stage and high in the late stage? Grasp the requirements. The controllable temperature is 38.5℃ on incubation day 1-6, 38℃ on incubation day 7- 14, 37.9℃ on incubation day 15 and 37.3-37 on incubation day 16-2 1.

2. Humidity

Incubation humidity is based on in principle? Big at both ends and small in the middle? Grasp the requirements. At the initial stage of incubation (1-7 days), the relative humidity can be kept at 60-70%; In the middle and late stage of incubation (day 8- 16), the relative humidity can be kept at 50-55%; During the incubation period (after 17 days), the relative humidity can be kept at 65-70%.

3. Ventilation equipment

Ventilation should be done during incubation to facilitate the normal development of embryos. Two days before hatching, the embryo is still very small and can get oxygen from the egg. At this time, the air inlet and outlet holes can be closed or a small hole can be opened; 7 days before hatching, you can breathe regularly, twice a day for 3 hours each time; After 7 days, the embryo grew up and the demand for discharged oxygen and nitrogen dioxide began to increase. At this time, the ventilation volume should be increased appropriately.