During mammary gland inflammation, numerous antibacterial and immune defense proteins, including Acute Phase Proteins (APPs), lactoferrin (LF), cathelicidins (CATH), cytokines, chemokines, and growth factors, are released in the milk and can potentially serve as “mastitis markers” (Smolenski et al. 2011; Thomas et al. 2015). Here, LTF is linked to mastitis.