One hatch date but eggs with varying percent weight loss - what to do?

ailurophile23

Songster
9 Years
Dec 21, 2010
492
56
111
VA
Hi All - This is my first time hatching - got a rooster and hoped for a broody but gave up after a couple months and got an incubator. I have light brahmas and put 19 eggs (gathered over 5 days) in the incubator. I weighed the eggs on the date they were laid and have been monitoring the weights along with the temperature and humidity in the incubator. Temps are constant and humidity has been fairly stable - incubator has a fan to circulate the air and a turner. I am also candling and can see veins in all the eggs - beyond that, it is really hard to see anything more than the air space at the big end and darkness in most the rest of the egg, especially through the brown shells.

The problem I am noticing is that there seem to be three groups of eggs - one group has lost more than enough weight (these are the really light almost white eggs), one group seems right on track, and one group has not yet lost enough weight. We are about half-way through the incubation. I only have one incubator. Is there any way to create micro-climates within the incubator - perhaps place a small piece of wet towel or sponge near the eggs that have lost more than enough weight so far? The turner holds up to 40 eggs so I can separate the groups a little bit.
 

mstricer

Crowing
11 Years
Feb 12, 2009
7,500
216
346
Ohio
Do a dry hatch. Don't worry about the humidity until day 18. I will probably get a lot of flack for this, but I don't understand the why folks weigh eggs. Most of the time you can tell through candling, by the air sac whether or not they've lost enough moisture. A hen doesn't weigh her eggs, she gets off of them daily, she plucks her feathers out, and locks herself down around day 18, so she can sweat is what I presume, that is what I get from watching my broodys. I don't mess with them. I watch so I can learn what is best. I hope all goes well with your hatch.
Michele
 

ailurophile23

Songster
9 Years
Dec 21, 2010
492
56
111
VA
Thanks Michelle - I have been wondering if that might be best at this point. The reasons I have been weighing are 1) I am a neurotic scientist and 2) this is my first hatch so I figured any additional info I could gather during the incubation might be helpful and interesting and 3) candling is harder to get info from than an actual number (the weight) - at least for me.
 

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