@Isaac 0 Could you give me dosing for Safeguard for a 4 pound duck? I have looked all over on BYC and have seen anywhere from .14 to .23 per pound. My welsh harlequin has been doing this strange head-shaking for at least a couple of months. She doesn't display any respiratory symptoms, but it seems to me like her throat is swollen or her tongue is suddenly too big. I haven't taken her to the vet because I just don't have a lot of faith in them. Everything is just a guessing-game with my vet - like spending $800 on every treatment and test imaginable to figure out what was going on with my duck Penny, come to find out at home later she was having her feathers pulled. Shouldn't a vet recognize the signs?! Anyway, I was examining her this morning and saw a microscopic little white worm on the edge of her beak. Then I came in and saw the video of this duck doing the head shaking, and it seemed fortuitous. I just got the Safeguard and would like to administer it as soon as possible. I hope I'm not too late to help her! Thanks in advance!
Gapeworms are fairly uncommon in ducks, and if she was suffering from a gapeworm infestation it would be unlikely that she would be alive by now, as gapeworms reside in the trachea, and cause severe dyspnea to the point birds are unable to drink, breathe, and eat.
However, if it'd make you feel better knowing it's not Gapeworm, you can use SafeGaurd, and dose and 0.23ml per pound, orally, once a day for five days.
If your duck is acting similar to the one shown in the video, in post 1#, and she's often shaking her head, followed by a gasp, and has lost normal range of her voice, it's likely there is something causing obstruction in her trachea. It's hard to tell without tracheoscopy, and radiographs, the underlying cause, but trauma to the area can cause swelling, as well as conditions like Aspergillus, which can cultivate inside the trachea and cause obstruction. Inhalation seeds into the trachea can cause head shaking, and dyspnea.