I want to hatch eggs from my silkies, but im not sure how best to store them to increase the probability of them hatching. Where I live, average temperatures range from about 70 at night to 80-100 during the day. My silkie has been practicing sitting on eggs, so I've been saving some hoping she'll go broody soon. Most people here store hatching eggs at room temperature (which is about the same as outside temperature), but the agricultural techs recommend keeping them in the door or crisper drawer of the refrigerator.
I know neither of these temperature extremes is ideal, but is there one that's better than the other? I only have one silkie, so the eggs could be up to two weeks old when I give them to her to hatch. Should I give her fewer eggs and/or mix breeds or just hope for the best with the older ones?
I've eaten some of the older eggs and the do look normal when I crack them, although one had a yolk that fell apart (which is common here during the hot season.)