Incubation Temp for sex

[ctzdavis]

Hello all, I am new to this forum. My son wishes to incubate eggs this year. I have heard that you can determine the sex of you hatchlings by changing the temp of your incubator. Simply put a slightly lower temp may produce hens and a higher temp may produce roosters, vice versus. I am not sure on this. Any help would be great.

 

[sumi]

That, unfortunately, doesn't work with chicken eggs! It works with crocodile eggs, though. Lower temps produce more females and higher temps more males. My DH told me about this and I did some research on the internet. It's true. With chicken eggs lower temperatures causes the eggs too hatch later and higher temperatures causes them to hatch sooner. There's a great article here on incubating and hatching chicken eggs that you may find helpful:

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

Best of luck with your hatch!

 

[ctzdavis]

Ok we are down to the last 3 days of incubation. Hoping all goes well.

 

[ozexpat]

Ok we are down to the last 3 days of incubation. Hoping all goes well.

lower temp kills more roosters so hen percentage is higher

good luck.post results and pics