Ovin/caprin Flashcards
A farmer recently purchased a sheep from a salebarn. The sheep soon became ill, with progressive depression, lethargy, and inappetance.
He had respiratory problems, breathing hard with abdominal effort, and died after three days with a frothy nasal discharge just prior to death.
At necropsy, the lungs had the appearance shown below.
What was the most likely cause of death?
C - Mannheimia haemolytica
Several younger sheep in a large herd have died suddenly with a diagnosis of infectious necrotic hepatitis secondary to fluke infestation.
Which choice is the most practical and effective control measure you can take next to prevent future cases?
A - Vaccinate all animals with Clostridium novyi toxoid
B - Clostridium hemolyticum bacterin for animals under 3 years
C - Clorsulon antihelmintic for whole herd
D - Treat ponds with copper sulfate molluscicide against lymnaeid snails
E - High-dose penicillin for clinical cases
A - Vaccinate all animals with Clostridium novyi toxoid
Several 12-month-old sheep and goats are sick at a petting zoo that has cows, horses, pigs, bison, and white-tailed deer. One of the deer is also affected. The rest of the animals appear well.
Affected sheep are febrile, listless, and off-feed, with serous or mucopurulent nasal discharge and rectal temperatures ranging from 105-107.5°F (40.5-42°C) [N=100.9–103.8°F (38.3–39.9°C)].
Physical exam shows swollen muzzles with edema and congestion of the lips, nose, and face with small hemorrhages and ulcers on the mucous membranes. The ulcers appear where the teeth contact the swollen lips and tongue.
Two affected animals are lame.
What is the diagnosis?
A - Contagious ecthyma
B - Caprine arthritis encephalitis (CAE)
C - Ovine progressive pneumonia (OPP)
D - Bluetongue
E - Peste des petits ruminants (PPR)
D - Bluetongue
