Changes

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 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.

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?  

|q2=How would you investigate this problem?  

|a2=

|a2=

*Liver enzyme concentrations (AST, GLDH, and GGT) are raised four- to six-fold in the four lambs sampled.  

*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).  

*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?

|q3=What treatments would you administer?

|a3=

|a3=

Two of 12 lambs failed to respond to vitamin B 12 and supportive therapy and were euthanased for welfare reasons. <br>

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.  

Necropsy revealed a pale and friable liver.  

|l3=

|l3= Cobalt Deficiency - Sheep#Treatment

|q4=How would you prevent a similar problem next year?  

|q4=How would you prevent a similar problem next year?  

|a4=

|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).  

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

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