![]() ![]() The 7-day old embryo will resemble a spider on the yolk. On Day 7 you should see a small dark spot with a few blood vessels radiating from it. Day 7 and Day 14 are the best days to observe changes in the embryo. ![]() It is good practice to “candle” the eggs (using a high-powered light source to view the growing embryo). Many people find that hand turning every 6 to 8 hours to be the “sweet spot." If you do not turn the eggs, the tiny embryo can stick to the shell membrane and may die.ĭuring the first 25 days, you will also monitor the temperature and humidity, adding water to the water reservoir as necessary to maintain the humidity. Better hatch rates are usually the result of more frequent turning, but the trade-off is every time you open the incubator it loses heat and humidity. The first 25 days you will turn the eggs by hand (if you do not have an automatic turner) at a minimum of every 8 hours. Even if you have an automatic turner in your incubator, marking helps you ensure that the turner is working properly. Marking the shell helps you visualize that they have been turned properly and frequently. During the incubation period, you will rotate the eggs. When you are ready to set the eggs into the incubator, mark an X on one side of the shell using a soft pencil, and an O on the other end. This helps prevent the embryo from sticking to the shell membrane. Rotate which end is propped up approximately every 12 hours. If you are holding the eggs for longer than 24 hours before beginning incubation, prop one end of the carton up a few inches. Place the eggs into a cardboard egg carton with the pointed end down and set in a quiet spot in the same room as the incubator. If you are not ready to begin the incubation period on the day that your eggs arrive, you may “hold” your shipped eggs for up to 10 days.īefore you handle hatching eggs always wash your hands thoroughly to prevent bacteria from entering through the porous eggshell. Setting cold eggs in a warm and humid incubator will cause the eggs to crack and the embryos will die. They need 24 hours to allow the yolks to settle and to reach room temperature. You should NOT set shipped eggs directly into an incubator upon their arrival. Generally, you add humidity by increasing the surface area of the water reservoir, and you lower humidity by allowing more fresh air intake. Follow your incubator manufacturer’s directions for how best to maintain humidity. During the winter months, you may find that the humidity is more difficult to maintain and in the summer you may struggle to keep the humidity low enough. It is not as critical to maintain a precise humidity and you should expect the humidity to fluctuate. Final 3 days increase humidity to 65-70%.First 25 days the recommended range of relative humidity for guinea eggs is 45-50%. ![]()
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