there are 2 schools of thought, dry vs wet incubation. I highly recommend the dry incubation method, I have had the best hatch rates using this method, but it is completely your choice which method to use. there is a link in my signature about it if you want to read more.
Q
here is the short version for dry incubation:
day 1-18: 25-45%
add no water; the eggs evaporation will create humidity naturally. remove red vent plugs.
day 19-21: 55-65%
add water to increase humidity on day 19. can be using the water well in the bottom, or a sponge in a dish.
temperature -
forced air (fan): 99.5F
still air (no fan): 101F
I agree with farmer viola that dry incubation has worked better than wet for me. I run anywhere between 20 and40% for the first 18 days then raise it.
My incubator runs very well as far as temp goes, i do suggest running full loads of eggs if possible as the more thermal mass in the incubator the better as it can hold more heat therefore running steadily. I also add baggies with water in them under the mesh floor for additional thermal mass.
With a full load of eggs I don't have to add any water in my environment it gets all the moisture it needs from evaporation of the moisture within the eggs, with a small batch of eggs you will have to monitor humidity daily and add water as needed, also if you are in a dry area more water will be needed. I regulate my humidity by adding or removing vent plugs. I start with both out then if it drops too low I put one back in, if it goes really low I will put them both back in to bring it back up faster then I remove one again when it gets to where I want it. Once you get to the later days of incubation you will want to be sure to remove the plugs because the chicks need air.
You need to get a different thermometer and hygrometer and ignore the ones on the incubator theyre junk. I got a small round hygrometer for a reptile aquarium from a pet store and i compared a bunch of thermometers at a farm store and bought the seemingly most accurate one for 3 dollars and i lay it on top of the eggs.
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