Which batch of quail egg is most suitable for incubation?

[sr13579]

My bird has started laying eggs for 4 days. Should I put these eggs into incubator to test? Or should I wait another week?
I have heard that the first week batch is not suitable.(C. japonica)

 

[Abpoultry]

My bird has started laying eggs for 4 days. Should I put these eggs into incubator to test? Or should I wait another week?
I have heard that the first week batch is not suitable.(C. japonica) is

My bird has started laying eggs for 4 days. Should I put these eggs into incubator to test? Or should I wait another week?
I have heard that the first week batch is not suitable.(C. japonica) is she deffinetly mating? Even if she is I'd still wait