Grass doesn't last long in a ducks pen, but I think Clint is on to something, Don't get me wrong I have alot of mud too just goes with the territory and now with snow and ice well i'm sure you can imagine, but places where my ducks spend most of their time I have pt down landscape material then placed river rock[it's round with out sharp edges] Lowes has it for a little over 3 a bag, but it really does help keep the mud down and if yours are in a run That maybe the way to go. Mine have a very large fenced in area with hills and there's no way I can put down river rock except in the smaller fenced in area. but it does help alot. I just go in and spray off the rocks every evening.
Look forward to seeing it and your ducks too.
I don't think a vet could help much unless you just feel it would ease your mind, maybe Clint will go in depth on what he thinks might help. Are they acting normal? eating drinking swimming being normal in the way they interact with each other and you? not visual signs of sickness other than wet feather?Do you provide Oyster shell to help them get adequate calcium? very important,also you could add a poultry vitamin to their drinking water and see if that would help if they are molting. When mine are going through molt I use Poultry Nutri drench and add to their water a couple times a week till they are through and feathers are coming in good. I will say this most reg vets don't know much about water fowl, so if you decide to take them to a vet I'd look for an Avian vet.
Oyster Shell is used to give egg layers extra calcium they need to lay strong shelled eggs, even when feeding layer they can still need extra calcium so It's best to offer it to them in a separate dish from their feed and they will use it as needed. Sometimes they can lay soft shelled eggs and OS can help prevent this. There are several Poultry vitamins on the market TSC has some, I use Poultry Nutri Drench mainly because I give it to newly hatched chicks and ducklings to give them a good start and also to help mama get back into shape after brooding for so long. I also give it to my flock members if they are recouping from something, like now I have a Brahma hen in the house getting over bumble foot, so I put it in her water. That's great you have a Avian vet close by. Clint checks in often so hopefully he'll give you some ideas on what my be going on and how to help, take some pics of your ducks and their set up so he can better help okay?
