Infectious Abortion in Sheep
Please select one answer from the list for each question.
1
What abortion rate is suggestive of an infectious cause?
Above one per cent
Above two per cent
Above five per cent
Above eight per cent
2
A zoonotic infection is defined as:
The spread of an infection from animals to humans
The spread of infection from one sheep to another sheep
The ability of an infection to remain dormant for many months
An infection that is resistant to antibiotic therapy
3
EAE infection of a pregnant ewe less six weeks from her due lambing date causes:
Abortion within several hours
Abortion within several days
Abortion within several weeks
Abortion during her next pregnancy
4
A 8-10 cm long mummified fetus with a dark brown leathery appearance produced at full-term is suggestive of which infectious cause of abortion?
Enzootic abortion
Salmonella spp.
Toxoplasma gondii
Campylobacter species
5
Which of the following statements is consistent with good flock biosecurity?
A closed flock should be maintained wherever possible
Purchased sheep should be mixed with the home flock during pregnancy to promote immunity by ensuring spread of infections.
Purchased sheep should be mixed with the home flock in the lambing shed to promote immunity by ensuring spread of infections.
Lambs fostered onto to aborted ewes will be immune to future infections and should be kept as breeding replacements
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