Bovine Mastitis Flashcards
what are the structural protections of the udder to infection?
sphincter muscle
keratin plug
what is there specialized media for in milk culture plates?
mycoplasma
prototheca
what are the two categories of infectious mastitis?
contagious
environmental
what is the source of Streptococcus agalactiae?
obligate intramammary infection
what is the pathogenesis of Staphylococcus aureus?
deep infection of glandular tissues
forms microabscesses
what is the source of environmental Streptococcus?
soiled bedding
water
skin
who does environmental Staphylococcus impact most?
more in heifers than cows
what is the source of yeast?
contaminated intramammary devices: tubes, cannulas, instruments
what is the pathogenesis of Truperella pyogenes?
establishes abscesses after introduction
what is the prognosis of Pseudomonas aeruginosa?
fair
may self-cure
what is the pathogenesis of Prototheca?
establishes disseminated infection throughout udder
what is physiological edema caused by?
lack of movement
decreased available protein
immature vasculature
how is trauma/hemorrhage noted?
as blood in milk (BIM)
what should you do if you see pustules on a teat?
call state vet
how long should you do intramammary treatment for mastitis?
no more than 5 days
