Topic of the Week - Hatching Eggs

[AmyLynn2374]

Welcome to BYC! Humidity at 77% for how many days?

That's my question. Please tell me that is just your hatch humidity. If that was your humidity the whole time, then there's your cause of death.
What kind of incubator are you using, is it forced air or still and what temps are you averaging? Have you ever checked your thermometers/hygrometer for accuracy?
Questions @trixt

 

[sumi]

@trixt https://www.backyardchickens.com/a/egg-failure-to-hatch-diagnosing-incubation-problems

 

[trixt]

It is a little giant forced air the first 13 days it was 65%then up to 77%

 

[AmyLynn2374]

It is a little giant forced air the first 13 days it was 65%then up to 77%

Ok, humidity that high will most certainly drown them. The 9300 is notorious for the display being off. First, I would suggest, if you don't already, to have your own checked thermometers and hygrometer in the bator, or at least check the bator's thermometer display against a known accurate thermometer and hygrometer. Second, drop that humidity the first 17 days. Anything over 45% for the incubation period in my opinion is risky. Many of us use low humidity around 30-35% to get a good hatch. I'm going to give you a couple links that should help you. One on humidity and one that's a general hatching guide from a hands on perspective. Give them a read, and give it another shot.
http://letsraisechickens.weebly.com...anuals-understanding-and-controlling-humidity
http://hatching411.weebly.com/

 

[KeelErrrrp]

Following

 

[LeeRoadPoultry]

Those doing duck eggs might find this picture helpful:

Great candling chart! I just started 24 giant Pekin eggs.

 

[LeeRoadPoultry]

We have a mix flock of hens. Most are  free ones people were giving away so are mainly ex battery hens. We bought a few banty chucks and 2 have gone broody.We have left them to get on with it, just put  a couple of blue eggs under each in the hope of more blue eggs if they hatch. Not sure what will happen if they hatch -should we lock  the cockrel and other 4 hens out of the coop and give them another coop in the run? The coop the broodies are in in is great for them and any chicks. Any ideas would help Ta

I got some good advise when I asked this question.

https://www.backyardchickens.com/t/1152948/using-brood-hens#post_18060876

 

[AmberBQuail]

Subscribing

 

[Teila]

Subscribing!

 

[WillGriffin03]

Anyone have any tips about maintaining humidity? If my humidity is low would my hatching be postponed for a while?