Post-hatching cool eggs can increase the hatching rate of ducks and geese

Cold eggs can increase the hatching rate of ducks and geese in the later period of hatching. Ducks and goose eggs are bulky. The surface area per unit weight is small, and their heat dissipation capacity is poorer than that of chickens. Therefore, eggs must be cooled in the first half of incubation. The specific method is as follows:
When hatching with 1 incubator, the machine should open the door twice a day, remove 18 to 24 days of egg trays from the shelf 2/3, transfer to hatch from 25 days, cool eggs twice a day, interval Pull out the egg tray. If the temperature of the egg is too high, the egg tray is pulled out of the machine to cool it and put into the machine. General cool time is 30 to 40 minutes each time, depending on the actual situation.
When hatching with 2 incubators, hatching occurs on days 1 to 15 in machine A at 37°C and 7°C, humidity is 65%, and cool eggs are not used. On the 16th to 26th days, hatching takes place on B machine. Temperature 37, 5~37, 7 Celsius, humidity 50%, regularly pull out egg trays outside the machine cool eggs, spray two times a day, 26 days later, the eggs were transferred to a hatching tray hatching.
In order to reduce the labor when cool eggs, after 16 to 17 days of incubation, adopt a method of enhanced ventilation, which can remove excess calories in the eggs, but also meet the need for embryonic ventilation.

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