GRANT M. TOMITA AND STEVE P. HART
Mastitis is defined as an inflamation of the mammary gland. The inflamation is the result of a localized immune response to an irritant within the gland. The irritant can be in the form of pathogens, toxins, or physical trauma. The goat mounts an immune response in an attempt to destroy or neutralize the irritant, and return the mammary gland to normal function.