it's the amount of water that's in the air, as a percentage of the maximum amount of water that the air could hold at its current temperature. So, in summary, ‘relative’ humidity is exactly that. But unless you’re planning to place your incubator on Mount Everest, it’s not likely to concern us too much. Eggs have the best hatch rate when stored for no more than 7 days before beginning to incubate. Depending, of course, on the unit of temperature your thermometer uses. The cold air in the basement cannot hold as much water as the warm air upstairs, so the basement carpets get damp instead.Ī similar principle applies with air pressure too. How to set up the egg incubator Optimum temperature: 100.5 degrees Fahrenheit Temperature range: 99-102 degrees Fahrenheit Relative humidity, day 1-17: 50-55. To start with, the temperature of your incubator should be about 99 degrees Fahrenheit to 102 degrees Fahrenheit or 37 degrees Celsius to 39 degrees Celsius. Ever wondered why carpets get damp in the cold basement? There’s your answer. So 100% humidity at 37.5☌ means there is a lot more water in the air than 100% humidity at 10☌. That’s why hot countries tend to feel more humid than cold countries - there is more water held in the air. A wet bulb temperature of 88oF and a dry bulb. However, in reality air is different to a sponge, because hot air can hold more water than cold air. Relative humidity is calculated by using a wet bulb thermometer to measure the temperature within the incubator. If it begins to rain, and the air loses half its moisture, it could be said to reduce to 50% humidity. If you imagine that the air around us is a giant sponge, you could imagine that it has a certain, critical capacity at which it's ‘full’ with evaporated water and cannot hold any more. By this I mean that it depends on two factors: air temperature and air pressure. Set the temperature at 37.5C (99.5F) and relative humidity at 55 (84.5F on wet bulb thermometer). If the incubator is not already in operation, start the incubator and allow the temperature and humidity to stabilize a day or two before setting eggs. Manna Pro Harris Farms Nurture Right Incubator - Egg Incubator for Hatching Chicks - Holds 22 Eggs - Automatic Egg Turner with Temperature and Humidity Control - 360 Degree View With Clear Window 4. Don’t try to adjust the incubator to a higher temperature if it falls below the above-stated temperature or you could find your eggs cooked instead of hatched. Basic procedures and conditions for hatching duck eggs are as follows. First 25 days the recommended range of relative humidity for guinea eggs is 45-50. What does it mean when we say, “Relative Humidity”? Humidity levels need to be kept at 45 during incubation but before hatching should be raised to around 65 or higher, depending on how high or low humidity is. After you complete the preparatory steps, heat the incubator to 99.5 o F or 37.5 o C. Forced-air incubator (with a fan) 99.5 degrees F (acceptable range 99-100) Still-air incubator (no fan): shoot for a range between 100 and 101 degrees F.
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