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Comstock

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Posts: 851
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Hello,

As you all know there has been a lot of chatter about Cystinuria positive Mastiffs.  Pedigrees are going up without permission, accusations being made without proof and fund raisers being promoted.  I can appreciated the importance of this disease since my husband and I were one of the few to come forward about our PRA Mastiffs in early 1997.  However, I think it is as important to know the dogs that are testing negative for cystinuria as well.  It may shed as much light on inheritance as looking at PRA offspring that should have had the disease (had it been recessive) and did not.

Since I received the results this afternoon about my two boys, I will start with them.  Following their names are the years tested.

Comstock's Run For The Roses (Riles) - Negative - 03, 06, 08
Ch Comstock's Listen To Your Heart (Lucah) - Negative - 03, 06, 08

I did test eight other littermates in 03, and all were negative.  I started Cystinuria testing in 1997 and, so far, all Comstock Mastiffs have been negative.

I personally feel that breeding less and letting each litter reach 18-24 months BEFORE breeding either that sire/dam again, might go a long way to stemming the tide of this disease.  And, we definitely need a better screening tool...preferably one that picks up both sexes and doesn't give false negatives.

Lucah/Riles sire/dam are:

CH Caledonia's Second Promise, HOF
Int'l/Am CH Castle Creek's Comstock Calli, HOF








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Caroline Tobin
Comstock Mastiffs
http://www.comstockmastiffs.net
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medievalmastiff

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Reply with quote  #2 
Caroline,
     I think this is a great idea.  Many of the dogs are in both positve and negative dogs pedigrees. 

    LisaG

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Lisa Gannon
Medieval Mastiffs
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Comstock

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Reply with quote  #3 
Hi Lisa,

I know and that is why I think it is important to know the negatives as well.

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Caroline Tobin
Comstock Mastiffs
http://www.comstockmastiffs.net
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