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Disinfection is disinfection. Before entering the hatching, the fumigation method is generally used to disinfect, that is, 15 g of potassium permanganate per cubic meter of space, 30 ml of formalin, and fumigation for 20 minutes at a temperature of 25° C. to 30° C. can kill eggs. Virus. Disinfection is generally performed in a sterilizer.
Temperature is the temperature. Temperature is the primary condition for hatching. Incubation temperature should be based on the development of the embryo to take a higher temperature in the early stage, the middle level, slightly lower in the later period, and a slightly higher temperature during the hatching period. Temperatures are: Preheat eggs 6-8 hours before hatching, egg temperature 36°C~38°C, 1~7 days 38.8°C~39.2°C, 8~14 days 38.5°C~38.8°C, 15~20 days 38°C~ 38.5°C, 21~24 days (ie shelling) 38.5°C~39°C
Wet or humidity. Humidity also plays an important role in the entire incubation process. If the humidity is insufficient, it will cause the embryo to stick to the shell, and it will cause difficulty in hatching. If the humidity is too high, it will easily cause poor absorption of yellow eggs in the chicks, resulting in poor physical quality and death. Appropriate humidity should master the principle of two high and middle level, that is, the relative humidity in the early period is 60%~65%, the middle period is 55%~60%, the later period is 60%~68%, and the hatching period is 70%~75%.
Turn over eggs. In order to make the eggs heated evenly, the eggs must be turned manually or naturally. From the second day of hatching, the eggs are turned once every 2 to 4 hours, the angle of turning eggs is 180 degrees, and the turning starts on the 21st day. egg.
Let the air dry. Eggs should be air-dried at 38.8°C during the latter part of the incubation period. Generally, they should be dried once a day for 16 days; hatched for 21 to 24 days and dried twice a day. The time to air the eggs can be controlled flexibly according to the situation. When the temperature drops to 35°C, the incubation continues.
Spray water. Spraying water is one of the key measures to increase the hatching rate. Water spray can make the shells crispy. The pheasant has a thick film on the eggshell and the eggshell is hard. For this, it needs to spray water once a day for 21 to 24 days. The water temperature is about 35°C. After the water is dry, it will continue to hatch. Under the action of repeatedly confining the eggs and spraying water, the eggshells will be hard and crisp, which will help the chicks break through the shells.
Take it as it is. The first time the eggs are incubated in 6 to 8 days, the main inspection egg fertilization rate, according to the normal egg can be found on the embryo's eye, the color of the egg red and bloody, no egg but no change, complete egg yolk The egg white is transparent, and it is necessary to remove the lean egg in time. The number of eggs depends on the specific circumstances, mainly to check the development of embryos and detect dead fetus eggs.
Select eggs. Try to use the preserved eggs within two weeks. The eggs are normal, moderate in size, uniform in thickness, uniform in color, and bright in color. The shorter the preservation time, the higher the hatching rate.