I have concerns over the condition of my eggs. I have noticed spots developing on the shells of my chickens eggs. I have 3 hens, 1 ex-battery, 1 Plymouth Buff, and 1 Rode Island Red and a cock, a Light Sussex. I am attempting to bread from the Buff and the RIR, but i don't always save the eggs for the incubator so they go in the fridge for eating. Firstly is this OK to do? I am concerned that the eggs may be developing a bacterial infection as they seem to develop lots of small dark spots in the shell, and some i have opened have blotches in the yoke. Is this because they are fertilized as i can also see a white spot about 2mm/2mm on the yoke or is it something else. I have 8 in an incubator right now and they all have there spots i must admit that as this is my first attempt i was not fully clued up and a little naive, so i have not sanitized any eggs at all. I've loads more question but i'll leave it there for now.