How long does sperm last?

[BabyGotQuack]

How long does sperm last inside a female? I had heard in the past about 2 weeks but when I googled the first site said up to 15 weeks!!!!

Does anyone have experience with this and know first hand?

I had to rehome a blue Swedish drake 2 weeks ago, which leaves me with only a pekin drake. I can tell which eggs come from my pekin lady so I would know 100% I was getting pure pekin ducklings but I don’t know how long I need to wait til that blue Swedish sperm is gone before I could quit pulling her eggs and let her do her broody thing?

 

[Jenbirdee]

I heard it was about one month.

 

[BabyGotQuack]

I heard it was about one month.

That’s how long I was going to wait to be on the safe side until I read the 15 weeks which seemed unrealistic to me.