“…In addition, P. multocida can also cause occasional, but severe mastitis. The incidence of P. multocidamastitis is typically very low: 0.21% (Ribeiro et al, 2010) or 1.25% (Langoni et al, 1991). Mastitis can be subclinical (Wilson et al, 1999), or cause only visible macroscopic changes in the appearance and consistency of milk: the milk consistency turns watery, with yellow clots (O`Sullivan & Bauer, 1971), thick, creamy-yellow, viscous secretion, sometimes with a foul odour (Swartz & Peterson-Wolfe, 2016).…”