Chicks hatch technical tips

Incubate Egg temperature:

In poultry hatching, the quality of the laying eggs is an internal cause, and the incubation temperature is the main external cause. Only qualified breeding eggs can hatch healthy chicks. With qualified breeding eggs, there is no suitable temperature required to ensure the normal development of the embryo, nor can it be obtained. High hatchability and quality chicks. Incubation temperature is divided into "egg temperature" and "giving temperature". "Egg temperature" refers to the surface temperature of the breeding egg. "Giving temperature" refers to the temperature of the space inside the incubator. "Egg temperature" and "giving temperature" are different. .... more

The humidity of eggs hatching:

Embryo development has relatively wide requirements for environmental humidity, generally 40% -70%. But be sure to prevent high temperature and high humidity, high temperature, and high humidity can easily swelter the embryo. Proper humidity allows the embryos to be heated evenly in the early incubation period, which helps the embryos to dissipate heat during the late incubation period. The moisture and carbon dioxide in the air at the time of hatching make the eggshell brittle and facilitate the emergence of broken shells. The requirements for embryonic development on environmental humidity are relatively wide, generally 40% -70%. But be sure to prevent high temperatures and humidity. Hatching ventilation and oxygenation:

In the early stage of hatching, the egg gas metabolism is weak, and the oxygen demand is small. After 4 days of incubation, it gradually strengthens. When 18 days of incubation, the respiration of every 720 chicken embryos is equivalent to the respiration of one person. When hatching to the shell pecking, the allantoic villus function diminished, which turned into lung breathing, and the oxygen demand increased sharply. Some people measured the oxygen consumption of each embryo. The initial incubation was 0.51 mL/hour, the incubation for 17 days was 17.34 mL/hour, and the incubation for 20-21 days was 0.1-0.15 L / hour. Oxygen demand throughout the incubation period 4-4.5L .. more
 

Turning eggs and cold eggs:

In the natural hatching of pheasant birds, the hatched hens turn their eggs 3-5 times per hour. It not only turns the eggs by an angle, but also moves the eggs at the edge of the nest to the middle of the nest so that they are evenly heated. This is the nature of animals. Because egg yolk has more fat than protein, and its specific gravity is lighter than protein, the egg yolk always floats on the protein. If the egg yolk is not turned for a long time, the embryo on the egg yolk will easily adhere to the shell membrane. The main purpose of turning the egg is to change the position of the embryo in contact with the shell membrane to prevent adhesion; promote the movement of the embryo, which is conducive to the development of the blood vessels of the embryo; and maintain the good position of the yolk and the amniotic cavity, which is conducive to the embryo to absorb the protein.