Hatching Problems

mrsjboyd

Hatching
5 Years
Joined
May 7, 2014
Messages
6
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I am a science teacher and I have tried to hatch eggs 4 times and none have worked. One time my sub turned the temp up to 126 degrees... Anyway, this last time I had one chick hatch out but it died the next day. when I threw out the othr eggs, I cracked them open and many had chicks that were dead. They developed but still had a large yolk sac attached. I am careful with the temp and humitiy and I have a fan in my incubator but I don't know what I am doing wrong. I keep the humity for the first 18 days around 50% give or take. Can anyone give me some advice on this? My kids are ready to give up and I am too!
 
Welcome to BYC
frow.gif
Double check your temperature and humidity readings. I've been caught out by faulty equipment the first time I hatched, so that's where I start when I do everything "by the book" and it doesn't work. This hatch problem analysis is very helpful and interesting, it may help you figure this out:

https://www.backyardchickens.com/a/hatchability-problem-analysis

Also have a look at this wonderful article on all things incubation:

https://www.backyardchickens.com/a/hatching-eggs-101
 
images


Welcome to BYC!

If the chicks made it to lock down but never hatched, then this sounds like a ventilation issue. You say you cracked some open and they were to full term. Chicks at hatch need tons of oxygen. So one of the biggest mistakes is to forget to open all vents wide open. Without fresh air, the chicks will die before hatch. Get your humidity up to 65% to 70% at lock down as well.

Sumi has left you with the links for some reading. Good luck on future hatches!
 
Hello :frow and Welcome To BYC! Sorry about your hatches, you've gotten some good advice and links above, hope you are able to figure out what is going wrong.
 
Welcome to BYC
frow.gif
Double check your temperature and humidity readings. I've been caught out by faulty equipment the first time I hatched, so that's where I start when I do everything "by the book" and it doesn't work. This hatch problem analysis is very helpful and interesting, it may help you figure this out:

https://www.backyardchickens.com/a/hatchability-problem-analysis

Also have a look at this wonderful article on all things incubation:

https://www.backyardchickens.com/a/hatching-eggs-101

Welcome to BYC, and good luck with the next hatch. Checking out the instrumentation is indeed important.
 
A ventilation problem...I have a fan in my incubator that is under one of the holes and I leave the other one open all the time. Do I need more than that?
 
A ventilation problem...I have a fan in my incubator that is under one of the holes and I leave the other one open all the time.  Do I need more than that?





I picture would help
 
A ventilation problem...I have a fan in my incubator that is under one of the holes and I leave the other one open all the time. Do I need more than that?
If the fan is sucking fresh air in it should be adequate. How big is the hole?
 

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