using extremely high temps to hatch only females

[EggSighted4Life]

Has anyone tried this, or read any articles on it?
yes, yes, I know roosters are important- but as a person who always gets 80% roosters I am wondering if this has been done. I know with other species (human for example) female sperm can survive less than ideal conditions much better than male- so I was hoping someone else had done an experiment.... otherwise I might.

I've had temperature spikes in my bator.. chick gender as far as I know is determined before incubation by the hen..

My temp spike.. resulted in an equal gender of chicks hatching.. with an equal number of deformities.. Depending on which day or how high the temp is.. you're just speeding formation.. making duckling with no eyes and so on.. you should get early hatching not extra females... IMO, according to EVERYTHING I've read/experienced with POULTRY eggs.

Replace hens not the rooster if gender ratio of offspring is the consideration for cause.

Refrigerated eggs holds truth to more females. I only hatch refrigerated eggs mainly, occasionally fresh.

I'll let you know if anything hatches.. out of desperation.. I set Bielefelder eggs that have been in my fridge since September! But lots of folks have hatched refrigerator eggs, so results should be available.

 

[Minky]

Valid point, sorry I mixed it up! Then replacing some of the hens may be a good idea

I know that- but the egg already has the determined sex inside it, so the male eggs just wouldn't hatch!

 

[Minky]

It's probably been tried and failed because otherwise hatcheries would be doing this

Not necessarily- The Ancient Egyptians built the pyramids (which we could not do today!) but didn't have the invention of a wheel! Same for Stonehenge etc...

 

[LizzzyJo]

I like thinking outside the box, but if this worked in any way then (like was stated) hatcheries would be doing this. I wouldn’t waste your time or eggs. But if you do, make sure to use a well designed experiment with numerous control groups and good note taking.

 

[EggSighted4Life]

Refrigerated eggs holds truth to more females. I only hatch refrigerated eggs mainly, occasionally fresh.

Last hatch was 6 females, & 4 males.

My fresh hatch was 2 males, & 2 females.

Small numbers rarely hold truth to larger sample sizes in my experience.

 

[MysteryChicken]

Small numbers rarely hold truth to larger sample sizes in my experience.

I originally had more, but had a few quitters.

 

[LizzzyJo]

Not necessarily- The Ancient Egyptians built the pyramids (which we could not do today!) but didn't have the invention of a wheel! Same for Stonehenge etc...

You may be watching too much Ancient Aliens...

 

[Minky]

If you're not wanting to raise as many males, breed sexlink and just use the male chicks for reptile food

I dont have reptiles, and dont like sex links. I like my heritage breeds.

 

[MysteryChicken]

I've had temperature spikes in my bator.. chick gender as far as I know is determined before incubation by the hen..

My temp spike.. resulted in an equal gender of chicks hatching.. with an equal number of deformities.. Depending on which day or how high the temp is.. you're just speeding formation.. making duckling with no eyes and so on.. you should get early hatching not extra females... IMO, according to EVERYTHING I've read/experienced with POULTRY eggs.

Replace hens not the rooster if gender ratio of offspring is the consideration for cause.


I'll let you know if anything hatches.. out of desperation.. I set Bielefelder eggs that have been in my fridge since September! But lots of folks have hatched refrigerator eggs, so results should be available.

I've hatched eggs as old as 3 weeks.

 

[Minky]

I've had temperature spikes in my bator.. chick gender as far as I know is determined before incubation by the hen..

My temp spike.. resulted in an equal gender of chicks hatching.. with an equal number of deformities.. Depending on which day or how high the temp is.. you're just speeding formation.. making duckling with no eyes and so on.. you should get early hatching not extra females... IMO, according to EVERYTHING I've read/experienced with POULTRY eggs.

Replace hens not the rooster if gender ratio of offspring is the consideration for cause.


I'll let you know if anything hatches.. out of desperation.. I set Bielefelder eggs that have been in my fridge since September! But lots of folks have hatched refrigerator eggs, so results should be available.

REALLY?? wow- please let me know the results of the 2.5 month old refrigerated eggs.
VERY INTERESTED!!!!!