With prey animals like ducks, they will hide a weakness or illness until they physically can't anymore.
Since there's been no improvement, unless you think of something else to try, I would cull. I wouldn't eat, because there's a 30 day withholding on the VetRX (last o checked)
And since that's true, if you wanted to try treating with ivermectin, you might as well. It's a long shot, but there's a protozoan that can cause some of those symptoms, but the name is not coming to me at the moment (throbbing migraine). Someone else might have a better idea.
Since there's been no improvement, unless you think of something else to try, I would cull. I wouldn't eat, because there's a 30 day withholding on the VetRX (last o checked)
And since that's true, if you wanted to try treating with ivermectin, you might as well. It's a long shot, but there's a protozoan that can cause some of those symptoms, but the name is not coming to me at the moment (throbbing migraine). Someone else might have a better idea.