Not early on no. But the Turken x Houdan cross eggs we lost all ended in a blood ring, and I was worried it was germs, but I’ll admit I’m a bit over-cautious if anything with washing before I handle eggs. My son is the same but he never opens the incubator. (It’s in my gaming room I share with hubby so we would know if kiddo was fiddling with it)I always use antibacterial soap and warm water, scrub for a good 30-45 seconds, then make sure my hands are totally dry before handling the eggs. Though I will say just one of the cross eggs was a little dirty? But I didn’t think nearly dirty enough to cause any bacterial issues, especially considering eggs’ bloom, so I was puzzled!
Keeping hands clean is definitely a must however most early quitters are most likely going to be from improper Incubation temps, not fumigating the machine properly or the eggs themselves. If the incubator has the perfect settings going and it was properly fumigated before setting eggs, then quitters before lock down can be from any number of things from shipping, what temps and conditions the eggs were subject too before setting, how were they stored before setting, genetics and how healthy were the parents, what was their diet, do the eggs have powerful energy to go the entire cycle? So many things can cause deaths even if your hands are completely sanitized and the machine is running perfectly. Sometimes stuff happens out of our control. But we need to control as much of it as possible in hopes of getting as many to hatch as possible.Can it be happening at any time during the process from shipping? I think my fear is I must be doing something wrong somehow if they quit at all after developing, but is that more likely/possible for shipped eggs? These have all been shipped - we plan to only hatch our own backyard mixes next year on out!