TNF and Bovine mastitis: The main biological processes involved in the treatment of bovine mastitis with oregano essential oil include positive regulation of nitric oxide biosynthetic processes, positive regulation of MAP kinase activity, positive regulation of inflammatory response, positive regulation of RNA polymerase II promoter transcription, positive regulation of NF-κ B transcription factor activity, positive regulation of interleukin-6 production, and positive regulation of tumor necrosis factor production.