Dinoroar
Crowing
Agree you can separate him/her. I’d put antibiotic of sone kind on the navel I use hypochlorous spray peroxide, iodine or silver are other options. Then I’d offer electrolytes, b vitamins and some kind of yeast supplement (I use Kalmbach but Diamond v or plain nutritional yeast are good too) & molassesThis little guy...
Personally I also would use a light therapy light on that as well but I know most people wouldn’t have that on hand.