Everyone here is right. The feed oats may be a couple of years old, and full of weed seeds - or not - there is no guarantee - It would be possible that you might only get 60-75% germination. Usally they are just combined oats from a local source, and seed well - and the price is right at $6-8/50 lb bag. Certified seed is guaranteed to have a minimum of weed seeds, which can be important if planted as a nurse crop for clover, but is not necessary at all if planted just as a fall attractant crop for deer.

Just make sure they are whole, and not rolled, or cracked. Sometimes feed oats are cracked for better digestion to livestock - its usually clearly marked though.

Good luck