Difference between revisions of "Sheep Medicine Q&A 11"

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A vaginal swab, fetuses, and placentae should be submitted for laboratory examination. <br><br>
 
A vaginal swab, fetuses, and placentae should be submitted for laboratory examination. <br><br>
 
Blood samples are collected from all aborted ewes for toxoplasma and EAE serology.  
 
Blood samples are collected from all aborted ewes for toxoplasma and EAE serology.  
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|l1=Abortion - Sheep
 
|q2=List the common causes of abortion.
 
|q2=List the common causes of abortion.
 
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|a2=
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''C. psittaci'' was demonstrated in direct smears from the placentae and a strong positive titre obtained in three of four blood samples; a very high titre for toxoplasma was recorded for the other ewe. <br>
 
''C. psittaci'' was demonstrated in direct smears from the placentae and a strong positive titre obtained in three of four blood samples; a very high titre for toxoplasma was recorded for the other ewe. <br>
 
Any further aborted material must be submitted to monitor the situation. The zoonotic risk of chlamydial abortion, especially to pregnant women, should be stressed.  
 
Any further aborted material must be submitted to monitor the situation. The zoonotic risk of chlamydial abortion, especially to pregnant women, should be stressed.  
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|l2=Abortion - Sheep
 
|q3=What treatments would you consider?
 
|q3=What treatments would you consider?
 
|a3=The ewe was treated with intravenous oxytetracycline and made a rapid recovery. The ewe accepted a small male triplet foster lamb. <br><br>
 
|a3=The ewe was treated with intravenous oxytetracycline and made a rapid recovery. The ewe accepted a small male triplet foster lamb. <br><br>
 
All ewes in the group were injected with 20 mg/kg long-acting oxytetracycline intramuscularly that same day to reduce further abortions.  
 
All ewes in the group were injected with 20 mg/kg long-acting oxytetracycline intramuscularly that same day to reduce further abortions.  
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|l3=Enzootic Abortion of Ewes#Treatment
 
|q4=What control measures could be adopted?  
 
|q4=What control measures could be adopted?  
 
|a4=  
 
|a4=  
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#In this case it was recommended that all ewes which had possibly encountered infection this spring should also be vaccinated, and treated with long- acting oxytetracycline next year 6 weeks and 3 weeks before lambing.  
 
#In this case it was recommended that all ewes which had possibly encountered infection this spring should also be vaccinated, and treated with long- acting oxytetracycline next year 6 weeks and 3 weeks before lambing.  
 
#Vaccination against toxoplasmosis would depend upon titres in aborted versus control ewes.  
 
#Vaccination against toxoplasmosis would depend upon titres in aborted versus control ewes.  
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|l4=Enzootic Abortion of Ewes#Prevention and Control
 
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[[Category:Sheep Medicine Q&A]]
 
[[Category:Sheep Medicine Q&A]]

Latest revision as of 16:56, 1 August 2011


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A two-crop ewe from a group of 155 pastured sheep due to start lambing in 3 weeks has aborted two fresh fetuses. Three other abortions have occurred over the previous 5 days. The ewe is bright and alert but there is a red–brown vulval discharge over the wool of the tail and perineum. The rectal temperature is 40.0°C (104.0°F). The udder is reasonably well developed and there is some accumulated colostrum.


Question Answer Article
What samples would you collect? Link to Article
List the common causes of abortion. Link to Article
What treatments would you consider? Link to Article
What control measures could be adopted? Link to Article


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