The USDA Vet that inspects me, has me using an ounce of bleach in a gallon of water.
I have on-demand hot water system so I can easily control my water temp. I use 120 degree hot water.
I rinse the egg and get the chunks off.
Then I dunk the egg in the bleach water..
Let is sit a few seconds if it looks dirty still then rinse under hot water...
Then dunk in a second clean bleach and sit a few seconds, I mean few 3-5 seconds and rinse again under running water.
I wandered off looking at pheasants

ever use ammonia?
" Hatching Pheasant Eggs
Washing Eggs
Eggs must be washed before they are put in sanitized incubators. The most effective process is to use Kuhl egg wash machine and follow these guidelines.
- Wash mild non-foaming soap and Clorox bleach at 105 degrees
- Use a blower to remove the water
- Spray with an ammonia solution.
from https://www.pheasant.com/facts ..