skin lesions Flashcards
raised scabby, grey area with no hair on the head and neck
ringworm
who gets ringworm
normal in young animals, immunocompromised older animals
what is the treatment for ring worm
we usually dont treat unless 4H cow. topical iodine and clotrimazole
how do we know when ring worm is healing
hair is growing back in the middle of the lesion
what is the difference between primary and secondary photosensitization
primary: over eating photodynamic agent that causes nonpigmented skin in healthy animals to ulcerate and necrose
secondary: unhealthy cow with liver disease eats small amount of photodynamic agent and gets ulcerated lesions on nonpigmented and pigmented skin
type two photosensitization
genetic. hereditary disease. short life span. discolored teeth
treatment of photosensitization
provide quality feed, assess, liver, poor prog
what are the major teat lesions that look like wounds
ulcerative mammilitis, pseudocowpox, bovine warts
heifers>cows, decreased milk production painful and resistant to milking, ulcerated
bovine herpes virus
what is the treatment for mammilitis
iodophore teat dips, isolate or milk last
what causes pseudocowpox
parapox, orf pox==== ZOONOTIC
small scabs on teats with granulation tissue
pseudocowpox. reinfection possible
why do we care about hyperkeratosis
predisposes them to mastitis because the teat end doesnt seal appropriately.
general risk factors for hyperkeratosis - teat-end
pointy teats, old cows, on the machine for too long
what is the treatment for udder cleft dermatitis
clean, keep dry, mild astringent (witch hazel)
address udder cleft edema cause
