Well, I tried the Cayenne pepper when my hens slowed down in egg production.
They went from about 3 dz. eggs a day to 0! And I got 0 eggs for at least 2 weeks, and then they slowly went back to the 3 dz. a day that I got before. It took another 3 weeks for them to get back to laying regularly.
So, as for my experience, I will not use the pepper again.
Jean