There's always a vast difference of opinions among anglers when it comes to choosing baits. Most think that catfish bait have to be "stinky" or they default to chicken livers.
When it comes to blue catfish there's no bait that's better than cut bait and gizzard or threadfin shad usually top the list of fish to use for cut bait.
This is an infographic I put together that covers all the basics on locating and catching shad for catfish bait and some of the information needed for using it for catfish bait. It's a summary of a much longer article that goes into more detail on using shad for catfish bait.
Chad is a native Texan and catfish guide located in North Texas and operates under the name of North Texas Catfish Guide Service. Chad has been fishing for catfish all of his life. If it has whiskers he will fish for it but prefers fishing for blue and channel catfish and loves chasing after trophy class blue catfish on rod and reel. In addition to being a catfish guide he also writes two popular blog where he share all of his catfishing tips and tricks called Catfish Edge and Learn To Catch Catfish as well as being an outdoor writer and photographer for several magazines and outdoor media publications.