Week old cochin will not eat or drink

[Popeye20011]

White Cochin chick arrived a week ago with 6 others (various breeds),right away noticed it was smaller and did not eat or drink like the others. She is unsteady on her feet, seems to stand tall causing tendency to shuffle backwards but can walk forwards although slowly and unsteady. She tends to sit still most of the time. We have given her quick chick vitamins & electrolytes by dropper, and now give her some soft boiled egg yolk and water by dropper daily. She had pasty butt but seems cleared up now. She seems to have okay energy, gives attention when we pick her up, preens, and sings but still does not eat or drink and doesn't seem to have grown at all. I am surprised she has lasted this long, she is so sweet, would love to save her, any ideas?

 

[Popeye20011]

The little chick passed away at about 9 days old. I think I got behind on feeding her and she lost too much strength and went downhill fast. These things happen, but would still like to know what her issue was if anyone has any ideas. Thanks.