| pond-level risk factors associated with columnaris disease on mississippi commercial catfish farms. | a large commercial catfish enterprise encompassing over 500 food fish ponds from five farms covering multiple counties in the mississippi delta was included in this analysis of columnaris risk factors. a gram-negative bacterium, flavobacterium columnare, is the cause of columnaris disease and is considered the second-most prevalent bacterial disease in farm-raised catfish. the objective of this study was to determine if pond-level risk factors reported by farm personnel were associated with colu ... | 2012 | 22897761 |