
This is a Meat Spot visible through candling.

So what is a meat spot? Mink Hollow Farm says that "Meat spots, while unappetising, are generally considered to be harmless. They are thought to be what's left of some tissue that has been sloughed off during or shortly after the yolk was released into the oviduct. The most likely explanation is that the meat spot is a piece of the follicle that once held a yolk. Sometimes a bit tears off. Another possibility is that a follicle that is no longer functional breaks down and 'falls off' from the ovary.Eggs containing meat spots are generally considered unsuitable for hatching. The meat spot can usually be easily removed."
So the presence of a Meat Spot does not mean an egg is fertile. I have begun candling all of our eggs to spot anything unusual and I have had two that contained a meat spot. I suspect this is what hubby's friend saw too.
Next egg fact...the Chalazae. Go here to hear that word spoken. I did, but I still can't say it right! The Chalazae is the white cloudy looking stuff. See it? Bottom left? Sometimes it looks like a tiny squiggly pig tail or a teeny tiny umbilical cord, which it pretty much is, and anchors the yolk. It is a normal part of an INFERTILE egg. It is perfectly natural and normal. It's presence also means your eggs are FRESH. As the egg ages, the Chalazae shrinks and becomes less noticeable. So they are really noticible in our eggs!

And the next egg one...you can almost barely see it in the picture above (top center of the yolk, not the bright camera flash spot on the bottom right) but our duck eggs tend to have a tiny noticeable light dot on the yolk. This is called the True Egg. For an egg to become fertile, it must be present, but it's presence does not indicate an egg is fertile. It is just a normal part of an egg and means it is a good egg.
Last but not least, the shells are thicker than a chicken egg shell, so you have to make sure you give them a good hard bonk on the side of your cast iron skillet.
So, there you have it. No boy ducks and lots of crazy egg info! I'm sure I have left something out that you are dying to know, so any questions? Ask away! :)

