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when using a Still Air incubator (no fan) at 102º F. KEEP READING WHERE TO SET THE THERMOMETERS...........
The reason for different temperatures is that with a fan model the circulating air warms all around the egg while still air temperatures are warmer at the top of the egg than at the bottom. The temperature is measured at the level where the embryos develop (at the top of the HORIZONTAL egg). NOTE: If the eggs are in vertical position, elevate the thermometer just below the top of the egg. The temperature is measured at the level where the embryos develop (at the top of the egg). Never allow the thermometer to touch the eggs or incubator because incorrect readings can result.
A high temperature tends to produce early hatches. A consistently cooler temperature tends to increase incubation times and produce weakened chicks. In both cases the total chicks hatched will be reduced. Prepare your incubator and run it for several days before adding eggs, to be positive you are maintaining correct incubation temperature. NOTE: It is common that when adding eggs the temperature will drop but should come back up to correct temperature within an hour or two. Don’t rest the thermometer's bulb touching the eggs or the incubator. Incorrect readings will result. Did you know that 10/13 day old embryos begin to produce excess heat in the incubator? Most large commercial incubators will spend more time cooling than heating!
I know because it is a still air it needs to be 102, but what I am asking is that if my thermometer is now reading 100.4 (nearly 12 hours after I opened and closed it to turn the eggs)when it is usually reading 101-102 do I need to adjust the thermostat and will this hurt the eggs.
you said your thermometer is in the middle of the eggs correct? 102 is for at top of eggs, so you should be perfect, just dont get the middle temp over 102
When I was using a still air, I kept it around 100 and had pretty decent hatches. They were always early so I figured it was best not to increase the temperature. Could have been my thermometers too...how far along are they? I would say if you are closer to the end, they should be fine at 100.4...
Thank you for helping!! what level do you take temps? keep this in mind!