Okay, I have 66 guinea eggs in the barn. The guinea has was on them 2 nights straight then last night she wasn't on them, but this morning she was on it. It seems that she comes and goes. My question is, My nephew wants some of the eggs to incubate. How long will the eggs be good for him to put in the incubator? If the guinea is not on full them full time yet? The reason I ask is, it will be atleast 6-8 hour maybe before he could get them in an incubator. Will they still be good?