http://www.vetmed.ucdavis.edu/whatsnew/article2.cfm?id=1374 Yes, it IS in the German Shepherd breed also. I have been testing for the past 6-7years. Most of mine have been normal/normal, with a handful of mutant/normal (two alleles per gene)....if a dog is mutant/mutant, they can and usually do react in a potential lethal way. I have seen some dogs react to this - some have indeed died... Pixel has been tested normal/normal. Judy in MN ----- Original Message ----- From: "Mary-Anne" <mary-anne.boulet@xxxxxxxxxxxx> >I thought I heard somewhere that you have to be very careful with >ivermectin > that certain of the herding breeds (rough collies, aussies and gsd's) can > have a fatal reaction to it. This may be a case of a little knowledge > being > a dangerous thing so could someone please check on that? > Mary-Anne ============================================================================ POST is Copyrighted 2007. 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 - www.showgsd.org ============================================================================