Lec 4 Flashcards
lice infestation in small ruminants
pediculosis
biting lice
Bovicola (Damalinia) limbata
bloodsucking lice
Linognathus
small ruminants’ ticks
Boophilus microplus
Rhipicephalus
Tickborne pathogen/protozoa
Anaplasma
Babesia
rickettsial dx that is spread via contaminated needles, dehorning tools, and surgical instruments
anaplasmosis
hemoparasitic protozoan dx
babesiosis (B. motasi)
sheep scab causing scaly crust on wooly area
Psoroptes
- foot or leg mange
- ear mange
- Chorioptes
- Sarcoptes
causes nonpruritic papules and nodules (contain thick, waxy, and grayish materials) that develop over the face, neck, shoulders, and sides
Demodex
eye worm
Thelazia
- inflammation of the cornea and conjunctiva due to a G (-) bacteria (Moraxella bovis)
- vector of this dx
- IKC (infectious keratoconjunctivitis)
- fly
causes of abortion
brucellosis
toxoplasmosis
campylobacteriosis
other terms for brucellosis
contagious abortion
Bang’s dx
causes abortion in cattle and ewe
cattle = B. melitensis
ewe = B. ovis
indication of positive result of Brucella milk ring test
blue ring
rapidly growing life stage of T. gondii
tachyzoites
also called cystozoites, are the life stage found in the tissue cyst and are believed to replicate slowly
bradyzoites
causative agent of campylobacteriosis (G-)
C. fetus
other term for caseous lymphadenitis and its entry portal
cheesy gland
via wound
causative agent of caseous lymphadenitis that is hardy and can survive fomites for 2 months and in soil for 8 months
Corynebacterium pseudotuberculosis
forms of caseous lymphadenitis
Superficial (goat)
Visceral (sheep): economic importance
loss of weight syndrome
thin ewe syndrome
an interstitial mastitis (firm but non-inflamed udder in goats) that appears after birthing
retroviral mastitis
