There's a search at the top of the page ....right under the BYC chicken logo. If you mean more intensely yellow yolks - greens & marigold are the secret.
They have lots of grass and bugs to eat. It worked in the past. I had to start over because of cancer. I was keeping layer pellets out. I just started with feeding pellets twice a day a couple weeks ago. Hoping it will encourage them. I do feed about two or three cups dried mealworms to fifteen hens
Also soaked Alfalfa nuggets for horses work to darken the yolks. Mine love them in the winter with raisins mixed in.
from someone else who had a cancer interruption to their chicken life . I use this....https://www.google.com/url?sa=t&rct...-maker&usg=AFQjCNHCzOPSA-s6sbJcHcE0H3MU3oGl8Q I can't free range as I'd like, and this really puts on the bright yolks. Plus, it's not just cosmetic, it increases the Omega-3 level of the egg. Other than that, greens of different varieties help. some folks say cayenne changes egg yolk color, not sure if it changes the nutrient levels or not.
There's a search bar at the top....at least on my laptop....not sure if it's there is you're using the mobile app. Searching here can be laborious, there's lots of chatter to wade thru....and just a ton of threads. I've found the advanced search to have a bit better results, but still a lot to wade thru. This will get you started, try several different key words.....make sure you go back to advanced search before entering new key words. advanced search>titles only>bright yolks
