She's the only adult hen in there. She's in a coop with her roo and 4 younger unrelated silkies, and none of them even go inside the nesting area (and not old enough to be laying or sexed yet). We haven't had any broken eggs when she was laying.
That sounds like a good plan! Thank you!
Sounds like you are good to go, then!
Just give her the serema eggs sometime from day 10-14....I am a firm believer in allowing the broody time to feel the eggs moving the last few days and hearing the chicks starting to peep the day before hatch to help her adjust to hatching mode and transition to mama mode ....see my post from yesterday about the brooding stages.... inexperienced hens take just a bit more time and observation....some make awesome mama hens, some take a bit of time and assistance to the new role and some just aren't cut out for it and only time will tell.