Sheep Medicine Q&A 11 - Revision history

Bara at 16:56, 1 August 2011

2011-08-01T16:56:13Z

Ctrace at 14:26, 23 May 2011

2011-05-23T14:26:23Z

Ctrace at 14:26, 23 May 2011

2011-05-23T14:26:02Z

Ggaitskell: Created page with "{{Template:Manson}} 500px
'''A two-crop ewe from a group of 155 pastured sheep due to start lambing in 3 weeks has aborted two fr..."

2011-04-12T18:34:19Z

Created page with "{{Template:Manson}} centre|500px '''A two-crop ewe from a group of 155 pastured sheep due to start lambing in 3 weeks has aborted two fr..."

New page

{{Template:Manson}}

[[Image:Sheep Medicine 11.jpg|centre|500px]]

 

'''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.'''

 

<FlashCard questions="4">
|q1=What samples would you collect?
|a1=
A vaginal swab, fetuses, and placentae should be submitted for laboratory examination. 
Blood samples are collected from all aborted ewes for toxoplasma and EAE serology.
|l1=
|q2=List the common causes of abortion.
|a2=
Common abortifacient agents include:
*''Chlamydophila psittaci'' (EAE)
*salmonellosis including ''Salmonella montevideo'', ''S. typhimurium'', and other serotypes
*''Campylobacter fetus fetus''
*''Toxoplasma gondii''
*''Listeria monocytogenes''
*''Pasteurella'' spp.
*tick-borne fever.
''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. 
Any further aborted material must be submitted to monitor the situation. The zoonotic risk of chlamydial abortion, especially to pregnant women, should be stressed.
|l2=
|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. 
All ewes in the group were injected with 20 mg/kg long-acting oxytetracycline intramuscularly that same day to reduce further abortions.
|l3=
|q4=What control measures could be adopted?
|a4=
#Aborted ewes must be isolated for at least 6 weeks and all aborted material buried or burned.
#With EAE now present in the flock the farmer should be strongly advised to vaccinate all replacement females even if purchasing EAE-accredited stock.
#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.
|l4=
</FlashCard>

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← Older revision		Revision as of 14:26, 23 May 2011
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 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.
-|l1=
+|l1=Abortion - Sheep
 |q2=List the common causes of abortion.
 |a2=
@@ Line 27: / Line 27: @@
 ''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.
-|l2=
+|l2=Abortion - Sheep
 |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>
 All ewes in the group were injected with 20 mg/kg long-acting oxytetracycline intramuscularly that same day to reduce further abortions.
-|l3=
+|l3=Enzootic Abortion of Ewes#Treatment
 |q4=What control measures could be adopted?
 |a4=
@@ Line 38: / Line 38: @@
 #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.
-|l4=
+|l4=Enzootic Abortion of Ewes#Prevention and Control
 </FlashCard>

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Sheep Medicine Q&A 11 - Revision history

Bara at 16:56, 1 August 2011

Ctrace at 14:26, 23 May 2011

Ctrace at 14:26, 23 May 2011

Ggaitskell: Created page with "{{Template:Manson}} 500px '''A two-crop ewe from a group of 155 pastured sheep due to start lambing in 3 weeks has aborted two fr..."

Ggaitskell: Created page with "{{Template:Manson}} 500px
'''A two-crop ewe from a group of 155 pastured sheep due to start lambing in 3 weeks has aborted two fr..."