That is the standard set by the USDA. You can view it on their website. If you choose to get your Candling /grading license this is the protocol you have to follow.
The USDA set the standard at 45 days from laying for refrigerated eggs. It is recommended that you refrigerate @ 45°as soon as possible after wash dirty eggs and drying. Only leave out eggs for hatching. shelf life for eggs left out is very short.
I am a USDA certified Candler and grader. Here is what you need to know. Eggs have a 45 day shelf life from day of hatch. To test the age of an egg put in a pan of water. If the egg sits on the bottom it is fresh the more it floats the older the egg.
Thank you for the friendly welcome. I do have a question you might could help me with. My Wyndottes had mites and I have been treating the naturally ...wood ash and eucalyptus oil. Some have feathers coming back in but other don't. Talking to a vet friend she has seen a few wyndottes that had...
I keep 3 waters in each of my pens. One in the coop, one each in the front and back of their run. This will help with hen-pecking as a lead hen may dominant a particular waterer.
I would remove old container put new one in its place and take one chicken and show them how to drink from the new container. Leave it like that for a few days then if you want to you can add the old container back in if you want additional water for them.
You might consider getting some of those eggs into an incubator. Too many eggs under a hen can cause all the embryos to die. She rotates them and they can get too cold. You can Foster the new hatchlings in with those they are already sitting on. They won't know the difference. I have done this...