When candling, I don't look for movement in any of my eggs. I look for veining, a growing chick, a blood ring, or the dreaded black floating blobs that move when you turn the egg. The candling is done as quickly as possible so the growing chick is not stressed. I do not candle ever after day 15. You can't really see anything, and the eggs should be left alone during lockdown anyway. Remember, the more you handle your eggs, the higher the chance of something bad happening to them.
Everyone has reasons for doing what they do, but I see a lot of people looking for movement in every egg and candling during lockdown. I wonder how much it negatively affects hatch rates.
I agree with you for the most part. Two of my eggs have shells so obscure that I could not tell if they were clear or growing at 8 days. Today, at 10 days, I can see a noticeable mass.
Those that I candled on day 8 and showed growth and veining went right back in on a separate turner. While candling, movement was visible in some of those, I did not stare at them until I saw them move. Those were not touched today.
Those I had separated for followup, because they looked clear or couldn't be determined because of shell opacity, were checked again today. Two moved to the "good" tray, the others were discarded.
I am still 8 days from lockdown, and eggs didn't cool, and this was only the second handling since set, so I am not too concerned with overhandling.
I know the very first eggs I set years ago undoubtedly suffered from too much love. And last year I had to handle too much due to issues with my LGs. But my new incubator is horribly stable and boring so I feel deprived of the close interaction with the eggs, and end up posting on this forum.
