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I like to share the fun!
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Congrats on the the hatchers!!! I have a couple I consider large that I am worried about. Even though the egg is loosing the moisture and air cell is growing accordingly, I don't think the chicks are going to grow big enough and there is still going to be extra fluid due to the size of the egg. We will see. lockdown tomorrow evening.13 chicks popped like popcorn, easy as could be, in 12 hours from pip or less.
5 had pipped but couldn't get out of the shell. One of those died in the shell with tissue around its face, four more are in ICU.
Three were really large, and two of those were malpositioned. They all died in the shell, two without absorbing all of the yolk and none had absorbed all the albumen. The shells on these eggs were abnormally large (jumbo) and the chicks were bloated and air cell development was behind.
Two are still in eggs set later than the rest. But the incubator has been open more than closed and I consider them to be at risk.
While I don't claim to have "the answer" to successful hatches, for my new incubator these will be my baseline operating rules:
Set all eggs on the same date, at the same temperature.
Do not set excessively large or excessively small eggs for the breed.
Maintain incubation temperature with a "dummy egg" internal temp of 100F.
Maintain incubation humidity at approximately 38%.
Lockdown at the end of the 17th day or one day earlier for very large eggs.
Increase humidty to 45% on the 19th day.
Expect half of the hatch on the 20th day. Lower temperature 1F if dry chicks are panting.
Expect the remainder to hatch on the 21st day.
If at all possible, do not open the incubator while eggs are pipped.
When there are no more active pips, clear the chicks to the brooder and instruct on food and water.
Check the remaining eggs (I just held them to my ear). If no sounds, tap and listen. If still no sounds, eggtopsy or deliver.
Well I was just directed to this thread when I mentioned saving for a cabnet bator, and as I was reading through this.... I got to this post and almost spit my coffee on my computer screen.. Thanks I needed that, was about to fall asleep at work lol .....Well, ok then. Just think of the fun and commotion you could stir up on BYC by posting questions and info, then answering and argueing with yourself! No end to the entertainment there!!!
Lol me tooWell I was just directed to this thread when I mentioned saving for a cabnet bator, and as I was reading through this.... I got to this post and almost spit my coffee on my computer screen.. Thanks I needed that, was about to fall asleep at work lol .....