I have a silkie hen setting on 7 eggs. Does she need extra protein or electrolytes or probiotics??? She doesn't get off her eggs very often, and eats very little?
She will be fine without anything extra. It looks like they never eat, drink or poo when they are sitting, but they do. If you want you can remove her once a day and place her at the waterer to drink. I sometimes give my broody extra treats like mealies or bread, but I save the scrambled egg until the babies have hatched & dried off. She will eat and feed them some.