Brenda, I have been progesterone testing my bitches for a few years with constant success and it sounds as though your vet has things a little mixed up! Levels have to reach 6.4 or higher before considering to breed. Once they are at or higher than 6.4 breed 3 to 4 days later (if you have free access to the stud, I would breed twice), on days 2 & 4 or days 3 & 5. I have had extremely good success with this testing and all other secondary signs (cornification, bitches receptiveness, etc) has been right on the money! Hope this helps? Good luck /) (\ . . \o/ JurHaus German Shepherds Deanne Jur Manitoba, Canada 204-334-0875 djur@xxxxxxx www.jurhaus.com -------Original Message------- Subject: [ SHOWGSD-L ] Progesterone Levels Dear Listers, My vet has told me that bitches ovulate when their progesterone levels are around 5. BUT, that progesterone levels can shoot up to 20 within a 12-24 hour period but it STILL takes eggs 48 hours to mature. I've always thought that eggs and progesterone levels went hand in hand. Any thoughts? What brought this about was one of our bitches was about 90% cornified on day 9, vet said wait on progesterone, day 10 we did a progesterone anyway and it was 20! Of course we bred right away but I just figured it was too late. He maintains she probably ovulated around day 8 and we needed to continue breeding as the eggs still need 48 hours irregardless of what the progesterone says. Hummmm...this doesn't sound right to me~ Thanks, Brenda Banister Crago www.midnightsunshepherds.com ============================================================================ POST is Copyrighted 2004. 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 - http://www.showgsd.org ============================================================================