First time incubating with class - help!

lock down is day 18 you take them out of the turner and put them in cartons to hatch (just the bottoms of the carton cut the tops off) at this point you increase the humidity if they are hatching saturday then you will have to go to the school on sunday and remove the chicks from the incubator.

 

I'm a school teacher too, and my eggs should be hatching tomorrow!

If everything went well during your hatch then yes, they should hatch on day 21. If you had temp problems with the temps being too low, they will hatch later than that, if they were a bit (just a bit) too high, they might hatch sooner. If everything went just right, you might see them pipping on day 20 (Friday), but they prob won't come out till Sat. What this does mean is if your everything went well with your hatch, your class is likely to miss seeing the chicks come out. Hopefully you either have an early one, or one that's a couple days late so your kids can see. This is my second year hatching eggs in my classroom, and always try and time it so that day 21 falls on a day early in the week, like Monday, or Tues. That gives the kids plently of time to see the chicks come out. The only problem with that is it means my eggs should go into lockdown. Like Julie08 said, lockdown is when you take the eggs out of turner and up the humidity. How high you up the humidity depends on which incubation method your using- the regular one, or the dry one. I up mine to about 60-65%, some people do more, some less. There's alot of debate, and I'm no expert.

From what I understand, chicks can live up to 48 hours in the incubator without any problems, that's how long they have food from the yolk. Which means that even if every single last chick comes out on Saturday, they can wait for you to come into work on Monday and put them into the brooder. (You can make a brooder really easy out of a big rubber maid tub, or even a box. See the other section on raising baby chicks). Or you can come into work on Sunday and check on them. I would advise coming up if you can. You want to make your humidity level doesn't drop over the weekend at this stage.

Whatever you do, do not open the bator during lockdown. This is again a controversal topic, and I know alot more experienced hatchers disagree with this. Also, it's really hard not to open the bator. If you need to add more water get some aqurium tubing, a funnel, rig those together and pour the water through one of the vent holes into the channel. Works like a charm for me.

I hope this helps and good luck with your hatch. I know the good people here in BYC helped me have a good hatch last year!

 

I would be concerned about the timing. If you have one hatch early on the 29th(or worse, on the 28th) and no one comes to school until early on the 1st then that is 72 hours....well past the time the chicks need food and water and they may perish

eta- if it were me I would take it(bator and all) home and video the hatch to show the class, chicks would be safe etc...