the usual omega- 3 source is fish. oil high in omega-3 fats. nevertheless,it is a well know
fact that a change in the diet of any animal will produce a change in the fatty acids content of the end product. Thus,fish,pork,cows,and hens when given a high omega 6 diet would have meat,milk or eggs high in omega 6 fats. The contrary is also right.
The hen's diet is usually changed by givig them 15 to 30% flaxseed or 3-6 % of fish oil.
This way 200 mgrs. Omega 3 fatty acids eggs are obtained (3 to 6 more times than normal eggs )
if on top of that, general conditions are improved, like no cages (free range hens), no antibiotics, no hormones and animal sub products, much healthier eggs are obtained for human consumption. We have to understand that even under those conditions, when you feed. flaxseeds to animal, you are also giving them the insecticides and the other toxic products used to produce it.
That is why the ideal feed for perfectly organic omega-3 eggs is seaweed. Zero contamination here. This way you get more and better EPA and DHA in the final product.