Dermatological Diseases of Swine Flashcards
what is the agent of greasy pig disease/exudative dermatitis?
Staphylococcus hycius subsp hycius
what is the exudate like in exudative epidermitis?
dark brown, greasy
vesiculopustular eruptions snout, oral cavity, coronary bands
is Erysipelas/diamond skin disease zoonotic?
yes
how can Erysipelas present?
fever, depression, anorexia secondary to bacteremia
sudden death
stiffness
diamond lesions on day 3 of infection
what lice affect swine?
Haematopinus suis: sucking louse
what is the most important skin disease of swine worldwide?
Sarcoptic mange
how long does Sarcoptic mange survive in the environment?
3 weeks
what are the two forms of Sarcoptic mange?
allergic form
chronic form
what causes swinepox/pig pox?
suipoxvirus of the poxviridae
what is aplasia cutis/eputheiogenesis imperfecta associated with?
hydroureter
hydronephrosis
skull defecits
what causes parakeratosis?
zinc deficiency
interference with absorption of zinc
what viral disease can cause dermatological disease in swine?
swinepox
what fungal disease can cause dermatological disease in swine?
dermatophytosis
what nutritional disease can cause dermatological disease in swine?
parakeratosis
what genetic diseases can cause dermatological disease in swine?
aplasia cutis
dermatosis vegetans
juvenile pustular psoriasiform dermatitis
what predisposes to exudativee epidermitis?
suckling/recently weaned
trauma, poor nutrition, stress, poor hygiene
how can you treat exudative epidermitis?
anitbiotics
topical creams
chlorhexidine shampoos
supportive care
what is thee agent of erysipelas/diamond skin disease?
Erysipelothrix rhusiopathiae
what leads to bacteremia in erysipelas/diamond skin disease?
ingestion or access through wounds
stress, poor hygiene, overstocking
when are diamond skin lesions seen with erysipelas?
day 3 of infection
what happens 3 weeks post infection with erysipelas?
arthritis or endocarditis
how can you treat erysipelas?
penicillin
NSAIDs
vaccination
what causes ringworm/dermatophytosis in swine?
Microsporum
Trychophyton
what are the signs with dermatophytosis?
round/oval raised areas progress from erythema to crusting
head, trunk
no systemic signs
multiple affected
how can you treat dermatophytosis?
self-cure
topical: iodine, chlorhexidine, bleach
what might lice transmit?
swine pox
what do pediculosis/lice cause?
pruritus
anemia
decrease rate of gain
how can you treat pediculosis?
topicals: ivermectin, doramectin, amitraz
also treat sarcoptic mange like this
what percentage of herds are affected by sarcoptic mange?
70-90%
why is sarcoptic mange a problem?
economic losses: reduced growth rates, decreased feed efficiency, infertility
what serves as the reservoir of sarcoptic mange?
hyperkeratotic lesions in ears
what does the allergic form of sarcoptic mange look like?
intense pruritus
secondary lesions
wax in ears
how sensitive are scrapings for sarcoptic mange?
33%
who is impacted by swinepox?
young pigs 3-6 weeks
how is swinepox spread?
direct
transplacental
biting insects
what does aplasia cutis look like?
3-8 cm ulcers on back, loins, legs present at birth
may fill in or lead to death
what is seen with dermatosis vegetans?
skin: small pink swellings covered with crust, 2-3 weeks age
hooves: swelling/erythema coronary band, yellow exudate, thick hoof walls with horizontal grooves
pulmonary defects
what causes porcine skin necrosis?
concrete with lime, bleach, formalin still on
what does parakeratosis look like?
symmetrical erythema
hard, black scales along legs, ventrum, head, tail
deep fissures
what does juvenile pustular psoriasiform dermatitis look like?
ring with bright red periphery around central crater
mosaic patterns
small erythematous papules expand
white pigs
