Temperature requirements for hatching chicks in spring: Spring is the season of hatching chicks. In the hatching process, the primary condition for the embryonic development of eggs is temperature, and only the proper temperature can make the embryo develop normally. Natural hatching, the hens normal body temperature is 40.5 °C ~ 42 °C, transmitted to the top of the eggs are generally about 38.5 °C, so the appropriate temperature for hatching is 38 °C ~ 39 °C. Excessively high or low temperatures can affect the development of the embryo. If it is higher than the normal temperature, the embryo will develop too quickly, and the hatching is early. The chicks are not easy to survive. If more than 43 °C embryos may die. If it is lower than normal temperature, the embryo develops slowly, hatches out of order, and even dies. If less than 32 °C embryos will stop development and even die.
Therefore, the hatching temperature should be properly adjusted during the incubation process according to the different developmental stages of the embryo. Generally, in the early stage of incubation, embryos are in a low-level material metabolism, and their production of heat is low. The temperature should be slightly higher, which can stimulate the metabolism of carbohydrates and promote the development of embryos. During the middle of incubation, the metabolism of the embryos is gradually enhanced and complicated, and the embryos are enlarged. Can produce a part of the heat, the external supply temperature should be slightly lower than the previous; post-hatch fat metabolism is in an exuberant stage, the embryo itself produces a lot of heat to be emitted, such as the outside temperature is too high, hinder the distribution of heat, the body decomposition of toxic products are also ranked Failure to do so can result in poisoning or suffocation of the embryo. Therefore, the temperature in the later period should be low, but it should be increased slightly when it is out of the shell, so that the shell can be neat and tidy.
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