My duckling ate bad cow feed and now it can't walk what should i do?

Question

the mother and her othet young are fine ....so far does my duckie have a diseaese

Answer 1

Take him/her to the vet immediately.

Answer 2

Take it to the veterinarian quickly. I hope that it gets better!

Answer 3

I doubt it was bad cow feed.  If that were it, they would all  be sick.

If the duckling matters to you, fork up the $50 for a proper vet visit.  Otherwise, let nature take it's course.  You don't have a lot of options.