What is the difference between fertile eggs & non fertile eggs? (Chickens)?

We've had chickens for almost 50 years, and unlike another answer, you cannot tell if they are fertile by looking at them, unless they have already started developing and have blood vessels. The little white spot is there in fresh eggs whether or not they are fertile

There is no difference in taste or nutrition in fertile and infertile eggs, but there is a tremendous difference in taste and nutrition between the eggs your hens will produce compared to store eggs.

Just gather them fresh daily, and get them in the refrigerator. If you leave them in warm conditions for a few days they will start developing, and you don't want that to happen. It would be unpleasant when you broke them open.

But keep them cool, and you will fall in love with the wonderful taste of home produced eggs from happy hens, and they are very healthy for you, too.

Fertile Eggs

fertile eggs usually have a pinkish colour to them if you hold them up to a candle where as non-fertile eggs have a yellow colour also the egg may be a sort squashed shape which means it's non-fertile and the plump round shape being fertile, if it's fertile you may get mould or fungus growing on it if you use fertiliser (i prefer perlite ) which is able to hold the moisture that the egg needs and has no products in there that may harm the egg also never EVER put water on the egg as it will become hydrated and will eventually die. hope this helps and good luck with breeding ^^

Some wil be fertile..and some not..I was raised on a farm..and we always "candled" ours...To be safe simply crack them into a bowl first before cooking..You will see a small speck in them if fertile..and some will have small blood veins in them..there is no mistaking them...I will give you a plan here how to use a common lamp for candling...This also shows you what a canled egg looks like and what to look for..it is not hard at all..and you can easily see..PS..any fertile ones you get you can post them on craigslist.org and sell for 3 or 4 dollars apiece depending on the breed of the chickens..

How do you know a fertile egg in the store? LOL. they are different because one is a baby chick that will grow into a chick and one is just the egg. It's like a woman, she has a ton of eggs in her, but it's not a baby until sperm fertilizes it... two different things "egg" "baby"

No, they don't taste different. And all your eggs will be fertile, trust me. lol. You won't have baby chicks if you pick up your eggs daily. If you do want them you will need an incubator. Hope that answers all your questions. email me, if not. :)