Hi, We used to use Dr. Kruger's formula. We do not use it anymore. We follow the Great Dane Lady's feed program. The BakPakPlus (F) probiotics that she recommends is one of the strongest probiotics on the market and the probiotics are time released. Her website is (_www.greatdanelady.com_ (http://www.greatdanelady.com) ). Good luck Janet ============================================================================ POST is Copyrighted 2005. 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 ============================================================================