If it was known to be genetic then we would have a genetic test for this disease FYI..
It is thought to be genetic but environment can definately come in to play.. If the dog is constantly confined to a kennel run as it is growing perhaps the muscles in the stomach do not develop right ? Most of the setters that I knew that bloated were crated alot ... We give enzymes and feed raw and kibble at different time of the day of course . WE try very hard to prevent .. Our dogs have the run of three acres..