[Jacob-list] OCD

[Linda]

In sheep, I think it refers to Occipital Condryl Deformity. (might not be spelled correctly).  Fred knows a bunch about it and I hope he'll chime in with his explanation.  We had a ram once that we thought might have it, but examination of the skull proved he didn't.  It's pretty much what you said, but it's specific to one area and is caused by an abnormal bone growth that pinches the spinal cord where it goes up through the skull.

Linda
 
www.patchworkfibers.com
Registered Jacob Sheep, Angora Rabbits, Handspun Yarn


> What does OCD stand for?

>

> Osteochondritis Dissecans: Osteochondritis Dissecans

> A disease process by which subchondral bone (bone just below the

> articular cartilage of a joint) loses its blood supply. The bone and

> its overlying cartilage become damaged, and a fragment of bone may

> separate from contiguous bone to form loose bodies in the joint; the

> articular cartilage may or may not remain intact. The process occurs

> particularly in the femoral condyles of the knee, and also in the

> ankle and hip joints. The condition may be due to inherited

> anatomical

> abnormalities, obstruction of the blood supply to subchondral bone,

> or

> physical trauma to the joint.

> Kristi Frick

> Ideal Farm

> www.idealjacobsheep.com

>

> On 2/29/08, jacob-list-request at jacobsheep.com

> wrote:

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>> Today's Topics:

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>> 1. Re: Split Eyelids (CARL FOSBRINK)

>>

>>

>> ------------------------------------------------------------------

>> ----

>>

>> Message: 1

>> Date: Fri, 29 Feb 2008 06:29:27 -0800 (PST)

>> From: CARL FOSBRINK

>> Subject: Re: [Jacob-list] Split Eyelids

>> To: schmick54 at aol.com, Gotothewhip at aol.com, jacob-

>> list at jacobsheep.com

>> Message-ID:

>> Content-Type: text/plain; charset="iso-8859-1"

>>

>> What does OCD stand for?

>>

>> schmick54 at aol.com wrote:  Unfortunately, the ram lamb is a Goner.

>> Does the ewe lamb have a notch or a true SUED ? I don't think

>> there is a connection: 4 horn to 4 horn. Our Vet says the gene is

>> always present and when the right amount of carrier genes are

>> combined, a split eyelid can occur.

>>

>> We had a ram that contributed split eyelids to our flock. He is

>> no longer with us. We haven't had any problems since. He

>> definitely was the carrier, because we have the same girls with

>> no problems.

>>

>> Sometimes a SUED occurs along with OCD.

>>

>> Mick

>>

>>

>> -----Original Message-----

>> From: Gotothewhip at aol.com

>> To: jacob-list at jacobsheep.com

>> Sent: Thu, 28 Feb 2008 11:11 am

>> Subject: [Jacob-list] Split Eyelids

>>

>> Well.. I have now seen my first!  I bought an unregistered ewe

>> that had a lovely soft  dark fleece.  I had hopes of getting her

>> registered, and adding some fresh bloodlines to my flock.....She

>> has really nice

>> conformation, and a pretty horn set.  She had a pair of twins.

>> Both the ram and ewe have split eyelids.

>>

>> The ram lamb is a pretty significant split, and the ewe lamb is

>> very mild, and was not really noticeable until recently.

>>

>> What is the situation.  I have heard and read so many different

>> things. IS there a connection between breeding 4 horn to 4 horn?

>> I don't know.. 95% of my ewes are 4 horn.. and until this year...

>> my flock had always used 4 horn only rams (for years before i

>> purchased it)  and in my original flock, there are NO split

>> eyelids.  I will say... I have had many 2 horn sheep born out of

>> my 4 horn ewes, bred to 4 horn rams... don't know if that factors

>> in or not.

>>

>> Then... Culling it out...... Is it a recessive gene?  Is this

>> likely being carried by the adult ewe?  I plan on culling the ewe

>> lamb... and is this a wise cull?  Or am I over-reacting.....

>>

>> Where can I find more about split eyelids?

>>

>> Jennifer Tucker

>> Moose Mtn Ranch

>>

>>

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>> Carl and Judy Fosbrink

>> www.4hornfarm.com

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