Are these eggs fertile?

[poultrylubber]

I've heard that a fertile egg has a white dot in the yolk. Well I got my chickens fully grown from a friend last January and now when I crack open an egg there is still the white dot that they had when I first got them. I know that rooster "juice" only lives for about three weeks so there NO possibility that they are fertile but why is there still the white dot. Wondering if anyone knows anything or if its just normal.Thanks

 

[spikennipper]

All eggs have the germinal disc whether they are fertile or not, it often looks larger with a bullseye like appearance if fertile though, your eggs are unlikely to be fertile.
Found this good piece of info

http://www1.agric.gov.ab.ca/$department/deptdocs.nsf/all/pou3580?opendocument

 

[poultrylubber]

Thanks spikennipper I knew they probably weren't I was just wondering. Also thanks for the page