using extremely high temps to hatch only females

Minky

Crowing
Nov 4, 2017
1,518
2,384
286
Ontario
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.
 

MissMonty

Songster
5 Years
Sep 12, 2015
497
986
186
Dayton, OH
I mean to me that would mean a large number of the eggs wouldn't hatch I don't think genetically a chick will change from male DNA to female due to the temp change. So if what you're saying is correct (which I have no idea if it is or not, lets say for argument sake it is correct) then only the female eggs should survive which if you have a roughly 80% rate of getting roosters that means that the very most 20% of your eggs would hatch.

I would probably be looking at replacing the rooster if you're getting that many males over females.
 

JacinLarkwell

Crossing the Road
Mar 19, 2020
16,100
33,234
861
South-Eastern Montana
I mean to me that would mean a large number of the eggs wouldn't hatch I don't think genetically a chick will change from male DNA to female due to the temp change. So if what you're saying is correct (which I have no idea if it is or not, lets say for argument sake it is correct) then only the female eggs should survive which if you have a roughly 80% rate of getting roosters that means that the very most 20% of your eggs would hatch.

I would probably be looking at replacing the rooster if you're getting that many males over females.
Roosters don't decide sex in birds, it's the hen
 

MysteryChicken

Unique minded, open minded Chicken Lover
Premium Feather Member
May 31, 2018
28,455
57,179
1,141
East, Tawas Michigan
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.
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.
 

Minky

Crowing
Nov 4, 2017
1,518
2,384
286
Ontario
I mean to me that would mean a large number of the eggs wouldn't hatch I don't think genetically a chick will change from male DNA to female due to the temp change. So if what you're saying is correct (which I have no idea if it is or not, lets say for argument sake it is correct) then only the female eggs should survive which if you have a roughly 80% rate of getting roosters that means that the very most 20% of your eggs would hatch.

I would probably be looking at replacing the rooster if you're getting that many males over females.
No, Im saying that if I put 30 eggs into the incubator and used higher than normal temperatures, maybe on ly 6 would hatch but they would be mostly or all females.
 

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