Humidity: The relative humidity in the incubator should be kept at 65 ~ 70% in the early incubation period (1 ~ 7 days), decreased to 55 ~ 60% in the middle incubation period (8 ~ 20 days) and increased to 60 ~ 70% in the later incubation period (2 1 day to incubation).
Usually, the area of the incubator water tray is equivalent to 2/3 or 3/4 of the bottom area of the incubator, which basically meets the humidity requirements. The relative humidity of the incubator should be kept at 55 ~ 60%. In the process of incubation, with the increase of embryonic development oxygen demand, proper ventilation should be given, with regular ventilation 8 days before incubation and frequent ventilation 8 days after incubation.
The automatic incubator has an automatic egg turning device, which can set the egg turning time, otherwise it must be turned manually. The eggs should be switched, and the eggs around the egg tray should be switched with the eggs in the middle. Egg breeders will turn eggs every 2-4 hours until 20 days ago. After 20 days of incubation, the embryo has developed into a young partridge, and egg turning should be stopped.
Extended data:
Physiological habits of partridges;
1. Ventilation: The metabolism of laying partridges is relatively strong, and intensive feeding often produces a lot of harmful gases such as ammonia and carbon dioxide, which requires frequent ventilation. The ventilation rate should be 3 cubic meters per hour in summer and 1 hour 1 cubic meter in winter.
2. Illumination: Reasonable illumination can promote partridges to lay eggs early and increase egg production, but the intensity of illumination cannot fluctuate, otherwise it will make partridges fidget and lead to a decrease in egg production. Because partridges are very sensitive to light, the laying period and rest period of partridges can be controlled by the length of light, and the light of partridges in cages should generally reach 14 hour.
3. Reproductive characteristics of partridges: partridges grow to 28 weeks, and then turn to the reproductive period. About 2 14 ~ 245 days old, the female partridge gives birth. However, because the male partridge matures 3-4 weeks later than the female partridge, it is necessary to increase nutrition and light for the male partridge in advance. The ratio of male to female in flat culture is 65,438+0: 3, and the ratio of male to female in cage culture is 65,438+0: 4. After spawning, it needs artificial incubation and reproduction.
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