I candled again this evening and removed the non-developing eggs. In addition to the four clears and two early quitters I saw on Day 7, there was one additional late quitter, leaving 9 of the original 16 eggs. I am disappointed with this rate, but given that the package traveled from coast to coast and, despite 2-day Priority shipping, took 5 days to arrive, I should probably be satisfied. If 8 of these hatch, I will have the 50% hatch rate typical for shipped eggs. We’ll see; last time, I lost 4 after Day 14.
All of the eggs that had clam-shapes and loose-seeming contents did develop, so lesson learned there. The 9 developing eggs lost an average of 10.79%; 15% total weight loss would allow 9.99% by Day 14, so we are still a bit dry. However, the air cells in the eggs appeared to be the proper size. I’ve decided to hold humidity around 40% for the 4 remaining days until lockdown on Day 18. At lockdown, humidity is raised to 65%, the turner removed, and the incubator readied for hatch. During my last hatch, I had my first pip on the evening of Day 19!
I weigh the eggs using a digital scale; I rest a single egg cup cut from an egg carton on the scale and tare the scale before weighing the egg. To candle the eggs, I wait until the sun is down and turn off all of the lights in the house. I hold the small LED flashlight in my left hand, forming my thumb and index finger into a circle and using my other fingers to hold the light against that circle. I use my right hand to hold the egg against the outside of the thumb and index circle, creating a light-tight seal.