Here's a link that has a chart on how much of each essential oil should be given - of course different supplements have different amounts, so as with anything, always best to read the label rather than buying the best deal...
http://www.petcarerx.com/article/fish-oil-for-dogs-and-cats-the-benefits-of-omega-3-for-pets/601
http://www.petcarerx.com/article/fish-oil-for-dogs-and-cats-the-benefits-of-omega-3-for-pets/601
