Put 'em live in a feeder tank full of water with a water hose tricklin' for a couple days. The fresh water runnin thru 'em will take out the muddy taste. Pappaw used to do that with his Mississippi River catfish back in the day.
If they dead, gill cut em, let 'em bleed out, put 'em in heavy ice when you get to dry land. That'll help a lot.

