1- First, you must know that the incubator is a device that generates heat and humidity for you, brings in oxygen, and expels carbon dioxide through the vents in the incubator. Turning at a certain degree results, God willing, in chicks. The incubator must be placed in a room where the temperature does not exceed 30 degrees, with an exhaust fan or a window to renew the oxygen inside the incubator. There is a new type on the market that uses heat-insulating technology without cooling. 2- Here are some of the best excellent, good, and acceptable incubators available in the Kingdom of Saudi Arabia, with capacities ranging from 50 eggs to 3000 eggs and more: 1- GQF American Incubator 2- Prince British Incubator 3- FIEM Italian Incubator 4- Minho Italian Incubator 5- Arcom Korean Incubator 6- Al-Shamila Pro Incubator 7- Thai Black Chicken Incubator 8- Al-Watani Incubator of all types 9- Chinese Incubator, comes in grades that are difficult to explain. * These incubators are characterized by many advantages, including precise digital control of temperature and humidity, advanced ventilation systems, and user-friendly designs. They are also capable of hatching different types of eggs, including chicken, duck, goose, quail, pigeon, ostrich, etc. 3- You must ensure that the eggs placed in the incubator are fertilized: This is the egg produced by chickens with roosters. Fertilized eggs must be of medium size, and small, cracked, broken, round-shaped, or bumpy eggs should be excluded. Egg collection should not exceed 3 days in summer and 7 days in winter, and should be stored in a cool place below 25 degrees. 4- You must pay attention during egg transportation to excessive vibration, as it affects hatching. We must ensure that the mothers are over 8 months old. 5- "Bashayer" eggs should not be placed in the incubator. You will often notice the chick dying inside the egg when it is fully developed and unable to hatch, and this is the reason. 6- Inspect fertilized eggs when inspecting eggs after 7 or 10 days of placing the eggs in the incubator. It is preferable to inspect them. 7- Egg inspection mechanism We use a flashlight, phone flash, or any bright light source in a dark place. We place it under the egg. If veins appear, the egg is fertilized, or if they do not appear, the egg is not fertilized. This has a long explanation of embryo death inside the egg due to a problem with the mothers, excess humidity, or excess heat. A mercury thermometer and hygrometer must be placed inside the incubator. Chicken: Temperature: 37.5 to 38 C Humidity: 55 to 60% All that remains is to wait for the chicks to hatch, which will be within 21 days. After the chicks hatch, leave them inside the incubator for 8 hours, and then place them in a brooder or a prepared place with heating, feed, and water. This is what I know, and may God bless our Prophet Muhammad and his family.