Some may produce congenital mega more or less frequently than others, but I agree that both parents have to be carriers. I've heard folks "blame" the line of whichever parent they don't own <g> but they are in denial, and if bred enough, time will prove both are carriers to be true. Knock on wood, I haven't had a mega in several years now but I experienced a few 6-7 years ago after I bred into a certain line. I had no mega's in the first generation, so believe my bitch was not a carrier, but one of the second generation produced mega occasionally. Mega is a "breeders problem" that I despise. I refuse to knowingly breed two dogs "together" who have already both produced mega OR if both had littermates who were mega's. This seems to have helped me breed away from mega or at least reduce the risk, without throwing the baby out with the bathwater. Only time will tell. Melissa ----- Original Message ----- From: <DOGSRLUV@xxxxxxx> To: <PAGAIRS@xxxxxxx>; <Dglov49@xxxxxxx>; <Aletemar1@xxxxxxx>; <showgsd-l@xxxxxxxxxxxxx> Sent: Sunday, November 05, 2006 9:35 AM Subject: [ SHOWGSD-L ] Re: Question > > In a message dated 11/5/2006 6:32:20 AM Pacific Standard Time, > PAGAIRS@xxxxxxx writes: > Its my understanding that both the sire and dam have to be carriers > > > I doubt this and the reson I do is, I have a bitch that produced > esophogus > in her first litter, then I bred her a different way but to a dog that > had > (after I bred her) produced 2 in a litter. I got none... Is it luck of > the draw > or is it a single dog issue? > > Don't know.. > > Deb > > > ============================================================================ > POST is Copyrighted 2006. All material remains the property of the > original author and of GSD Communication, Inc. NO REPRODUCTIONS or > FORWARDS of any kind are permitted without prior permission of the > original author AND of the Showgsd-l Management. ALL RIGHTS RESERVED. > > ALL PERSONS ARE ON NOTICE THAT THE FORWARDING, REPRODUCTION OR USE IN ANY > MANNER OF ANY MATERIAL WHICH APPEARS ON SHOWGSD-L WITHOUT THE EXPRESS > PERMISSION OF ALL PARTIES TO THE POST AND THE LIST MANAGEMENT IS EXPRESSLY > FORBIDDEN, AND IS A VIOLATION OF LAW. VIOLATORS OF THIS PROHIBITION WILL > BE PROSECUTED. > > For assistance, please contact the List Management at admin@xxxxxxxxxxxx > > VISIT OUR WEBSITE - URL temporarily deleted due to AOL issues > ============================================================================ ============================================================================ POST is Copyrighted 2006. All material remains the property of the original author and of GSD Communication, Inc. NO REPRODUCTIONS or FORWARDS of any kind are permitted without prior permission of the original author AND of the Showgsd-l Management. ALL RIGHTS RESERVED. ALL PERSONS ARE ON NOTICE THAT THE FORWARDING, REPRODUCTION OR USE IN ANY MANNER OF ANY MATERIAL WHICH APPEARS ON SHOWGSD-L WITHOUT THE EXPRESS PERMISSION OF ALL PARTIES TO THE POST AND THE LIST MANAGEMENT IS EXPRESSLY FORBIDDEN, AND IS A VIOLATION OF LAW. VIOLATORS OF THIS PROHIBITION WILL BE PROSECUTED. For assistance, please contact the List Management at admin@xxxxxxxxxxxx VISIT OUR WEBSITE - URL temporarily deleted due to AOL issues ============================================================================