Dermatological Diseases of Swine

Question 1

what is the agent of greasy pig disease/exudative dermatitis?

Answer 1

Staphylococcus hycius subsp hycius

Question 2

what is the exudate like in exudative epidermitis?

Answer 2

dark brown, greasy
vesiculopustular eruptions snout, oral cavity, coronary bands

Question 3

is Erysipelas/diamond skin disease zoonotic?

Answer 3

yes

Question 4

how can Erysipelas present?

Answer 4

fever, depression, anorexia secondary to bacteremia
sudden death
stiffness
diamond lesions on day 3 of infection

Question 5

what lice affect swine?

Answer 5

Haematopinus suis: sucking louse

Question 6

what is the most important skin disease of swine worldwide?

Answer 6

Sarcoptic mange

Question 7

how long does Sarcoptic mange survive in the environment?

Answer 7

3 weeks

Question 8

what are the two forms of Sarcoptic mange?

Answer 8

allergic form
chronic form

Question 9

what causes swinepox/pig pox?

Answer 9

suipoxvirus of the poxviridae

Question 10

what is aplasia cutis/eputheiogenesis imperfecta associated with?

Answer 10

hydroureter
hydronephrosis
skull defecits

Question 11

what causes parakeratosis?

Answer 11

zinc deficiency
interference with absorption of zinc

Question 12

what viral disease can cause dermatological disease in swine?

Answer 12

swinepox

Question 13

what fungal disease can cause dermatological disease in swine?

Answer 13

dermatophytosis

Question 14

what nutritional disease can cause dermatological disease in swine?

Answer 14

parakeratosis

Question 15

what genetic diseases can cause dermatological disease in swine?

Answer 15

aplasia cutis
dermatosis vegetans
juvenile pustular psoriasiform dermatitis

Question 16

what predisposes to exudativee epidermitis?

Answer 16

suckling/recently weaned
trauma, poor nutrition, stress, poor hygiene

Question 17

how can you treat exudative epidermitis?

Answer 17

anitbiotics
topical creams
chlorhexidine shampoos
supportive care

Question 18

what is thee agent of erysipelas/diamond skin disease?

Answer 18

Erysipelothrix rhusiopathiae

Question 19

what leads to bacteremia in erysipelas/diamond skin disease?

Answer 19

ingestion or access through wounds
stress, poor hygiene, overstocking

Question 20

when are diamond skin lesions seen with erysipelas?

Answer 20

day 3 of infection

Question 21

what happens 3 weeks post infection with erysipelas?

Answer 21

arthritis or endocarditis

Question 22

how can you treat erysipelas?

Answer 22

penicillin
NSAIDs
vaccination

Question 23

what causes ringworm/dermatophytosis in swine?

Answer 23

Microsporum
Trychophyton

Question 24

what are the signs with dermatophytosis?

Answer 24

round/oval raised areas progress from erythema to crusting
head, trunk
no systemic signs
multiple affected

Question 25

how can you treat dermatophytosis?

Answer 25

self-cure topical: iodine, chlorhexidine, bleach

Question 26

what might lice transmit?

Answer 26

swine pox

Question 27

what do pediculosis/lice cause?

Answer 27

pruritus anemia decrease rate of gain

Question 28

how can you treat pediculosis?

Answer 28

topicals: ivermectin, doramectin, amitraz also treat sarcoptic mange like this

Question 29

what percentage of herds are affected by sarcoptic mange?

Answer 29

70-90%

Question 30

why is sarcoptic mange a problem?

Answer 30

economic losses: reduced growth rates, decreased feed efficiency, infertility

Question 31

what serves as the reservoir of sarcoptic mange?

Answer 31

hyperkeratotic lesions in ears

Question 32

what does the allergic form of sarcoptic mange look like?

Answer 32

intense pruritus secondary lesions wax in ears

Question 33

how sensitive are scrapings for sarcoptic mange?

Answer 33

33%

Question 34

who is impacted by swinepox?

Answer 34

young pigs 3-6 weeks

Question 35

how is swinepox spread?

Answer 35

direct transplacental biting insects

Question 36

what does aplasia cutis look like?

Answer 36

3-8 cm ulcers on back, loins, legs present at birth may fill in or lead to death

Question 37

what is seen with dermatosis vegetans?

Answer 37

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

Question 38

what causes porcine skin necrosis?

Answer 38

concrete with lime, bleach, formalin still on

Question 39

what does parakeratosis look like?

Answer 39

symmetrical erythema hard, black scales along legs, ventrum, head, tail deep fissures

Question 40

what does juvenile pustular psoriasiform dermatitis look like?

Answer 40

ring with bright red periphery around central crater mosaic patterns small erythematous papules expand white pigs