Hi Everyone, I need desperate help! This is my third time incubating with no success. I am using a dry air incubator, I have water in the bottom pan, I turn my eggs 3 times a day...the first 2 batches were still yolks when I checked them after 25 days, I am now on day 5 with this batch and tried candling today with no signs of the veins or eye...they still look like yolks...
Can anyone help? Our rooster is not very old and some chicks were hatched from his fertilized eggs last spring. what could the problem be?
Can anyone help? Our rooster is not very old and some chicks were hatched from his fertilized eggs last spring. what could the problem be?

and Welcome To BYC! TwoCrows gave you some great advice and links to check out. Have you cracked open some of the eggs from the same flock to check if they are fertile? If you are getting nothing developing at all, besides some major incubator problems (real temperature spike especially) your roo could certainly be the problem. Can you get proven hatching eggs from another local source? At day five you could see veins, usually they are a lot easier to see by day 7-8 though, especially in colored eggs.