[Jacob-list] Occipital Condylar Dysplasia

[Jacobflock at aol.com]

In a message dated 3/2/2008 11:20:36 PM Central Standard Time, 
schmick54 at aol.com writes:


> Occipital Condylor Displaisure.(spelling?) The brain stem is being 

> pressured by the closeness of the horn set causing the lamb to lose balance. He 

> usually falls often, has lost control of his legs. After a while he might spin 

> around and slide around on the ground. OCD is NOT a disease, but a condition. He 

> is safe to slaughter, but make sure his temperature is normal before doing 

> so, just to make sure.

> 


OCD is a malformation of the condyl (unequal condyls) at the 
atlanto/occipital joint; the first bone structure joiining the vertebrae and skull. It is a 
congenital defect that may exhibit no abnormal nec k carraige in its mildest 
form to ataxia in more svere forms.  Any apparent carraige mispresenment or 
ataxia is related to the severity of the dysplasia.  OCD and LSD exhibit similar 
patterns of behavior; a necropsy is the only way to confirm the problem; both 
seem to be recessive.  OCD and LSD are found in both two horn and polycerate 
Jacobs. Evidence suggests it is recessive.

There is no evidence to support a conhclusion that OCD and SUED are related.

ope this helps clarify the issues.;l

Fred Horak


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