Scramble and egg and see if she will eat it. Also offer her some yogurt in a little bowl. You may also want to put some vitamins in her water. They have a little packet of vita mix for a couple of dollars that has vitamins and electrolytes in it that will help her.
My guess is the...
I believe it is 1/4 of a cc. We alternate in the breast and then the back of the neck. Not too deep and slightly draw to make sure there is no blood when administering. Of at it's the Tylan 50.
I would start her on Tylan ASAP!!! Comes in both a drinkable powder or shot. I would suggest the shot if she is not eating and drinking well. You should be able to buy it at your local Tractor Supply or feed store along with syringes.