You can increase the level of omega-3 fatty acids in the eggs that your hens lay by including flaxseed in their feed. The flaxseed contains a type of omega-3 fatty acid called a -linolenic acid and the hen will deposit a significant amount of this dietary fatty acid into the egg yolk. The hen will also convert some of the a -linolenic acid into smaller amounts of other forms of omega-3 fatty acids and deposit them into the egg yolk.
Here is my current mix:
Wheat 4 Parts
Oats/Barley 2 Parts
Lentils/Split Peas/Quinoa 2 Parts
Flaxseed/Sunflower/Sesame Seeds 2 parts
Free choice of Oyster Shells/Grit
More information on Omega chicken diets can be found at http://www.gov.mb.ca/agriculture/livestock/poultry/bba01s04.html