thirty years or more ago, we incubated eggs with excellent results. used the little giant, hatched pheasant ,quail, duck. no problem.
last spring we decided to have a few chickens. we were too late in the season to get chicks from the feed stores. weeks later I found a note on grocery store wall, chicks for sale. we bought a few but still had the urge to hatch our own. we bought our incubator from
tsc.
the folks who sold me the chicks sold me some eating eggs. told me they had been in the fridge for a week. when i got them home i tossed the doz in the fridge. 3 or 4 days later i realized we had 4 doz eggs, that's too many. I don't know what came over me, I set up the bator and tossed the ladies refrigerator eggs into it. temps were erratic because of the weather. we had several thermometers, not one agreed with any other. never was sure of the humidity. never used a light to check fertility. guess what, 100% hatch, nice chicks. went back and got 18 hatching eggs. 100% hatch. now we were feeling the hatching power!!!! started buying mailed eggs--same lousy hatches as others on this post have written about. hundreds of dollars down the drain. but now we have a colony of the cutest silkies. some just started laying, and i got the crazy urge to hatch. i didn't think any would hatch due to the -0 temps, from new mothers, not even an egg box for the hen.
I could not control the humidity, 50% to 10% to 27% all the time, I just knew that these would be shrink wrapped. I was so discouraged I didn't lay them down on day 18, they were left rocking in the turner. 3 eggs hatched, not shrink wrapped, perfect chicks. i cracked the eggs not hatched, non were fertile. so that tells me, local eggs hatch, usps shipped eggs suck.
bob