How long before new rooster embryos have replaced ones from the old rooster

[Sea Wolf]

An odd question that I can't find an answer to. Looking for an answer for another non PC/internet chicken lover. You have rooster A. You find a different rooster with better genes and qualities and replace the old one. How long before the hens are positively laying eggs fertilized from rooster B? Can't find the answer anywhere. I assume there is a time that has to pass before the fertilized eggs from rooster A have all been laid. Does anyone know? Thanks

 

[SueT]

Fertility from a rooster declines gradually and, I have read, can last up to a month. Give it a bit longer to be sure.

 

[aart]

Fertility from a rooster declines gradually and, I have read, can last up to a month. Give it a bit longer to be sure.

Ditto Dat^^^

 

[Ridgerunner]

Read my post in this thread, post #6. I'm not typing all that again this morning.

https://www.backyardchickens.com/th...roosters-gift-remain-viable-in-a-hen.1321585/

Eggs are not fertilized when the chickens mate. The sperm is stored in a special container near where the egg starts its internal journey through the hen's internal egg making factory. That sperm is available to fertilize the yolk when it starts its journey. It's not a matter of all the fertilized eggs being laid, it's a matter of the sperm in that container becoming so old it is no longer viable.

 

[SueT]

Read my post in this thread, post #6. I'm not typing all that again this morning.

https://www.backyardchickens.com/th...roosters-gift-remain-viable-in-a-hen.1321585/

Eggs are not fertilized when the chickens mate. The sperm is stored in a special container near where the egg starts its internal journey through the hen's internal egg making factory. That sperm is available to fertilize the yolk when it starts its journey. It's not a matter of all the fertilized eggs being laid, it's a matter of the sperm in that container becoming so old it is no longer viable.

thank you for this! I didn't really understand how that works, just that you have to wait after replacing roosters.

 

[Ridgerunner]

Sue, this addresses a lot more than how the egg is fertilized but you might find it interesting. I used to have a video that did a better job of explaining but that link appears to be broke and Search did not find it.

http://www2.ca.uky.edu/agcomm/pubs/ASC/ASC201/ASC201.pdf