Goose eggs tend to be cooler in the later stages of incubation due to the large size of the goose and its high fat content. As the embryo develops, its metabolic rate increases significantly after 18 days of incubation. This leads to a rise in body heat, and excess heat must be released to maintain proper development. Therefore, it's essential to cool the eggs daily starting from day 18. Typically, two cooling sessions are conducted—one in the morning and one in the afternoon. Each session lasts until the egg temperature drops to around 36.6°C. After cooling, warm water at about 30°C is sprayed on the eggs to help regulate temperature and increase surface moisture, which supports healthy embryonic growth.
The incubation temperature should be carefully controlled throughout the process: 37.8°C during the first 6 days, 37.5°C between days 7 and 12, 37.2°C from day 13 to 18, 36.9°C from day 19 to 28, and finally 36.6°C for the last three days. Humidity levels also play a key role—70% in the early stage, 55% in the middle period, and 60% in the final phase. These conditions ensure optimal development and improve hatchability.
Following these procedures precisely is crucial to maximizing the success rate of hatching. Proper temperature and humidity management, along with regular cooling and misting, create the best environment for goose embryos to thrive. By maintaining consistency and attention to detail, breeders can significantly enhance the chances of producing healthy, viable goslings.
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