Temperature is the primary condition for embryonic development. Only at a suitable ambient temperature can the poultry embryo develop normally.
Critical temperature: --- refers to the minimum environmental temperature required for the development of chicken embryos, also known as "physiological zero." The critical temperature of a typical chick embryo is 23.9°C.
Suitable temperature: The suitable temperature for chicken embryo development is usually 37°C to 38°C. The suitable temperature set by the machine incubator at 25°C ambient temperature is: incubation period (1～19d) 37.5°C～37.8°C, optimum temperature is 37.8°C ie 100 F; hatching period (20～21d) 36.9 ～ 37.2°C. The suitable temperature for other poultry is within 1°C, which is inversely proportional to the length of the incubation period.
Effect of Temperature on Embryo Development
High temperature is the most important environmental factor affecting the hatching effect, and mainly includes: 1 affecting embryonic development: rapid development, shortened incubation period, and increased mortality. 2 Effect of hatching: The chicks are weak, dry and lean, and the quality is declining; the embryos are suffocating and the hatching rate is low.
Production should be avoided as much as possible, especially in the late post-hatching period.
The hazards of hypothermia are mainly manifested in: 1 slow embryo development, extended incubation period, increased stillbirth rate; chick yolk malabsorption. 2 The pre-incubation period (1 to 7 days) has a greater impact and the post-incubation period has less impact.
Food Antioxidants,Tbhq Antioxidant,Bha Butylated Hydroxyanisole,Butylated Hydroxytoluene Bht
Guangzhou ZIO Chemical Co.,Ltd. , https://www.ziofoodchemical.com