Sheep Medicine Q&A 04 - Revision history

Lwyasm1 at 15:42, 24 July 2011

2011-07-24T15:42:37Z

Ctrace at 14:24, 23 May 2011

2011-05-23T14:24:51Z

Ctrace: Created page with "{{Template:Manson}} 500px
'''A farmer complains of apparent sudden-onset profound depression and blindness in 12 of 300 6-month-ol..."

2011-04-12T18:20:41Z

Created page with "{{Template:Manson}} centre|500px '''A farmer complains of apparent sudden-onset profound depression and blindness in 12 of 300 6-month-ol..."

New page

{{Template:Manson}}

[[Image:Sheep Medicine 4.jpg|centre|500px]]

 

'''A farmer complains of apparent sudden-onset profound depression and blindness in 12 of 300 6-month-old lambs. When confined, the lambs are found head-pressing and there is frequent teeth-grinding. There are no cranial nerve deficits. The lambs are poorly grown (18–24 kg) with a dirty open fleece. The lambs have poor abdominal fill and there is faecal staining of the perineum and tail. The lambs are grazing permanent grassland in a National Park used extensively by the general public for walking their dogs.'''

 

<FlashCard questions="4">
|q1=What conditions would you consider?
|a1=The most likely conditions to consider include:
*severe cobalt deficiency causing white liver disease
*PEM
*sulphur toxicity
*subacute fasciolosis
*sarcocystosis
*hepatotoxin
*acute coenurosis
*focal symmetrical encephalomalacia. 
The poor growth rates of this group of lambs could be the result of poor grazing, overstocking, PGE, and trace element deficiency acting alone or in various combinations. 
The neurological signs are consistent with a diffuse cortical lesion – most likely a hepatic encephalopathy.
|l1=
|q2=How would you investigate this problem?
|a2=
*Faecal worm egg counts average 400 epg. No fluke eggs are seen.
*Liver enzyme concentrations (AST, GLDH, and GGT) are raised four- to six-fold in the four lambs sampled.
*Serum vitamin B 12 concentration from six lambs reveal very low levels (mean <88.6 pmol/L, <120 pg/mL).
|l2=
|q3=What treatments would you administer?
|a3=
All lambs should be treated with vitamin B 12 by intramuscular injection. 
The worst affected lambs were given 4 L of diluted oral rehydration solution by orogastric tube to stimulate appetite. 
Two of 12 lambs failed to respond to vitamin B 12 and supportive therapy and were euthanased for welfare reasons. 
Necropsy revealed a pale and friable liver.
|l3=
|q4=How would you prevent a similar problem next year?
|a4=
The low unit cost of cobalt sulphate allows routine inclusion in anthelmintic drenches (commercial ‘SC’ preparations, or at inclusion rates of 15–30 g per 10 L of 2.25% benzimidazole or 1.5% levamisole drench).
|l4=
</FlashCard>

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← Older revision		Revision as of 14:24, 23 May 2011
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 The poor growth rates of this group of lambs could be the result of poor grazing, overstocking, PGE, and trace element deficiency acting alone or in various combinations. <br>
 The neurological signs are consistent with a diffuse cortical lesion – most likely a hepatic encephalopathy.
-|l1=
+|l1= Cobalt Deficiency - Sheep
 |q2=How would you investigate this problem?
 |a2=
@@ Line 28: / Line 28: @@
 *Liver enzyme concentrations (AST, GLDH, and GGT) are raised four- to six-fold in the four lambs sampled.
 *Serum vitamin B 12 concentration from six lambs reveal very low levels (mean <88.6 pmol/L, <120 pg/mL).
-|l2=
+|l2= Cobalt Deficiency - Sheep#Diagnosis
 |q3=What treatments would you administer?
 |a3=
@@ Line 35: / Line 35: @@
 Two of 12 lambs failed to respond to vitamin B 12 and supportive therapy and were euthanased for welfare reasons. <br>
 Necropsy revealed a pale and friable liver.
-|l3=
+|l3= Cobalt Deficiency - Sheep#Treatment
 |q4=How would you prevent a similar problem next year?
 |a4=
 The low unit cost of cobalt sulphate allows routine inclusion in anthelmintic drenches (commercial ‘SC’ preparations, or at inclusion rates of 15–30 g per 10 L of 2.25% benzimidazole or 1.5% levamisole drench).
-|l4=
+|l4= Cobalt Deficiency - Sheep#Control
 </FlashCard>

Sheep Medicine Q&A 04 - Revision history

Lwyasm1 at 15:42, 24 July 2011

Ctrace at 14:24, 23 May 2011

Ctrace: Created page with "{{Template:Manson}} 500px '''A farmer complains of apparent sudden-onset profound depression and blindness in 12 of 300 6-month-ol..."

Ctrace: Created page with "{{Template:Manson}} 500px
'''A farmer complains of apparent sudden-onset profound depression and blindness in 12 of 300 6-month-ol..."