Humidity Help~~

[loot4louie]

Good advice! This is my 2nd hatch. I did the 1st hatch with my class at school. Its an old building with steam heat. Air sack stayed small and circular. I hatched 14 of 21. This hatch is at home- baseboard heat-air sacks are larger and not all uniform- what does that mean?! I figured it was to late to change them on the last candle! I think I will just hope for the best and keep bator temp consistant. Of course these are mighty fine eggs in there- but I can always buy more. Thanks

 

[kathyinmo]

Quote:
1/4 cup water
1/2 cup salt
Mix together like a slurry, in a cup.
Put the cup of salt solution into a ziplock bag, cup and all.
Add the hygrometer to the bag (not inside the cup).
Zip it closed and wait 12 - 24 hours.
It should read 75%. If it does not, then it is off. Mark your hygrometer accordingly. For instance, if it reads 78%, then you will need to -3 from the reading you get each time.

 

[babsbag]

Quote:
The larger the air sack the lower your humidity has been during incubation. IMO it is better that the air sack be too large rather than too small. If it is too small then the egg has not lost enough moisture and the chick could drown during the internal pip. You need to be concerned about humidity after they pip. It is important that the humidity not drop AFTER the external pip, that is when the shrink wrapping can take place.

If you have a fog I am pretty sure that your humidity is high enough. I don't think you could really go too high at this point. The worst you can get now is chicks that take a long time to dry in the incubator. They can't drown because of high humidity now, it would be high humidity during the entire incubation that makes the problem.

Also, as kathyinmo said "open your vents". That is VERY VERY important. Also, it is the surface area of the water that determines the humidity, not the volume of water, but you probably know that.

Go chickies.