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19 Cards in this Set
- Front
- Back
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What are the target rates for lambing and abortion in sheep herds?
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Lambing rate 90-95%
Visible abortions <5% (if more, investigate promptly) |
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Which abortion causing diseases are zoonotic?
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Chlamydophila Abortus
Ovine Toxoplasmosis Ovine campylobacterosis Coxiella burnetti (Q fever) |
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What are the major causes of abortion in US sheep?
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Campylobacter - 38%
Toxoplasmosis - 30% Chlamydia - 7% |
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How would you begin a control program for abortions during a season in which lambing is already well underway?
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Control measures: ionophores, vaccines, and antibiotics (tetracyclines)
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Which samples should be submitted to the diagnostic lab for diagnosis or abortion?
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a) Placenta
b) Fetus (lungs, gastric contents, liver, kidney, etc.) c) Dam's blood |
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Does Campylobacteriosis make the ewe sick?
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No
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Which abortifacient disease may have doughnut like liver lesions in the fetus?
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Ovine Campylobacterosis
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At what stage of gestation do most Chlamydiophila associated abortions occu?
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Late term abortions - "abortion storms"
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In what abortifacient disease are intracytoplasmic elementary bodies seen?
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Chlamydia = "Enzootic Abortion of Ewes"
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What organism causes Q-fever?
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Coxiella burnetti
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Which 'system' does bluetongue virus have a predilection for?
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GI tract?
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Name two pestiviruses that are related to the border disease virus
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Bovine viral diarrhea virus
Classical swine fever virus |
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Which species are definitive hosts for Toxoplasma gondii?
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Kitty cats
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What are the most common abortifacient agents in goats in the US?
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Chlamydia
Toxoplasmosis |
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Why are Angora goats susceptible to abortion?
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Hyperactive adrenals initiate parturition prematurely.
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What does the term 'cloud burst' refer to?
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Hydrometra: an accumulation of sterile mucoid fluid in the uterus associated with retained CL and no pregnancy
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Define male pseudohermaphrodite
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A male pseudohermaphrodite has male gonads but a female internal sex tract. Has testicles (abdominal or partially descended) but generally female external genitalia. Has female genotype (XX). Always sterile.
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What is the genotype of most polled intersex goats?
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XX
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How is intersex diagnosed?
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External examination (especially of the clitoris), surgical exploration, karyotyping, or PCR
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