I am wondering if anyone knows why farm fresh eggs would have an unpleasant odor. When I crack the eggs, sometimes I get a smell, not rotten but not pleasant either, and I notice the smell sometimes when I am eating them also. Any advice on this?

They were not picked soon enough and started to develop. Cracked one once that has a 1/2 formed baby chick.

Do you know for sure the eggs are not real old? Is there a date on the carton? Sulphur is probably what you smell. Here is an article about this --

Rollercoaster - Spark: Smelly Science - What's That Smell? E is for... eggs