exam 4 - bovine

Question 1

bovine viral diarrhea

Answer 1

caused by - flavivirus
forms - GI, reproductive,
respiratory
- respiratory disease
secondary to bacterial
infections
- asymptomatic carriers’ source
of infection
signs (GI) - fever, bloody
diarrhea, mucus,
redness and erosions
of mouth, intestinal
ulceration
signs (repro) -
- 1st trimester: fetal death,
resorption, mummified
- 2nd - 3rd trimester:
congenital defects, weak
calves, carriers

Question 2

Pinkeye

Answer 2

caused by - Moraxella bovis
what - infectious bovine
Keratoconjunctivitis
how - flies
incubation period: 2-3 days
factors - dry, dust, sunlight,
irritants, shipping stress
signs - mild irritation, tearing,
squinting, ulcer,
photophobia, scarring,
vision loss