Sheep resp disease complex Flashcards
1
Q
name 2 retroviruses which cause resp dz in sheep
A
- maedi
2. OPAV (ovine pulmonary adenocarcinoma viruses
2
Q
what does maedi viruses cause?
A
viral arthritis
infects monocytes
lymphoid tissue infiltratinon
smooth m hyperplasia in lungs
3
Q
how is maedi transmitted?
A
colostrum
inhaled
4
Q
what is another name for OPA virus
A
jaagsiekte
5
Q
what does OPA virus cause?
A
oncogenic
MF lesions of TII pneumocytes prolif
chronic wasting
6
Q
how can you test (unreliably) for OPA
A
wheelbarrow test
7
Q
name 3 bacterial agents which contribute to ovine resp disease?
A
- mannheimia haemolytica
- bibersteinia trehalosis
- mycoplasma ovipneumoniae
