How to tell if eggs are fertile

[flowerrpal]

I have 2 clutches of eggs, one laid in mid may and the other in mid July. I was wondering what fertile eggs look like, the eggs are white and plump. The small batch is from may and is larger than the others, and one seems to be lightly sweating. As well, the eggs have veins inside them when candling.

These are the eggs.

 

[jannb]

What kind of hens d9 you have? Infertile eggs usually mold over in a couple of weeks of being laid. If you’ve had your eggs that long then most likely they are good. If they are sweating then they are probably getting ready to hatch.

 

[CJ's Exotics]

I have 2 clutches of eggs, one laid in mid may and the other in mid July. I was wondering what fertile eggs look like, the eggs are white and plump. The small batch is from may and is larger than the others, and one seems to be lightly sweating. As well, the eggs have veins inside them when candling.

These are the eggs.

How many of them molded? There are many indentations that I can see in the hatchrite, and slight color on those spots that I have noticed.