do them just like chicken eggs, take them off the turner at day 25, they should hatch on day 28
i always add a few chicken eggs on day 7 so they'll hatch at the same time, turkey and peacocks tend to need to be taught to eat/drink and a few chicken chicks in the bunch work perfectly for me.
i don't know why but some people have a hard time hatching turkey and/or peafowl eggs, i really don't treat them any different then chicken eggs and i don't have any issues. honestly i hardly ever touch my eggs except to put them in the incubator and then to take them out and place them in the hatcher. i only candle on the day i move them to the hatcher but on very dark eggs and quail eggs i don't even bother. i give the vents on both my cabinets a sniff every time I'm in the area (several times daily usually), you can smell a bad egg quiet easily if you do this long before it's an issue, if i smell one, i open the door and go over every egg and remove any bad ones (they are very easy to sniff out).