I use Animal Genetics out of FL. I started w/ an account with them, they send the kits (free ahead of time so I just keep some here. I do test possible puppy keepers using blood not a cheek swab), and I test for DM, recessive long coat and recessive black all at once. I have e-mail results the same week I send in the kit and a hard copy report follows. So, reasons are convenience and fast turn around, important when considering a puppy to hold back. OFA doesn't list their <DM> results yet, although I pulled their info originally off the OFA site. Kathy, member GSDCA, DVGSDC Celebrating generations of Dual Titled TC'd Champions visit http://www.pinehillgsds.com/ In a message dated 10/28/2014 10:20:28 A.M. Eastern Daylight Time, gsdmum@xxxxxxxxxxxxx writes: Which lab do you recommend using & why? TIA! Joannie Dream Come True GSD, AKC Breeder of Merit - Stockton CA - Home of Jaccar-Rivendell Brianne HT, PT, TC, CGC, ROM; Am GCH / Can CH DCT-Tebe Nobe Me & Bobby McGee, HT, PT,TC, and too many others to list! --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com ============================================================================ POST is Copyrighted 2014. 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. Each Author is responsible for the content of his/her post. This group and its administrators are not responsible for the comments or opinions expressed in any post. 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@xxxxxxxxxxx VISIT OUR WEBSITE - http://showgsd.org SUBSCRIPTION: http://showgsd.org/mail.html NATIONAL BLOG - http://gsdnational.blogspot.com/ ============================================================================ ============================================================================ POST is Copyrighted 2014. 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. Each Author is responsible for the content of his/her post. This group and its administrators are not responsible for the comments or opinions expressed in any post. 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@xxxxxxxxxxx VISIT OUR WEBSITE - http://showgsd.org SUBSCRIPTION: http://showgsd.org/mail.html NATIONAL BLOG - http://gsdnational.blogspot.com/ ============================================================================