Thank you to everyone who sent their comments and experiences re short heat cycles. I have received comments from 22 people so far. Here is a summary: 13 said - had no trouble having litters when cycle is 3.5 to 4 months. 5 said - cycle became 6 mos after 1st litter. 1 said - by age 6.5 yrs cycle had become 6 mos; never got pregnant, 4 false pregnancies, gave Biotin to lengthen out cycles. 6 said - bitch conceives every other cycle only. 1 said - had trouble conceiving, when finally did - reabsorbed fetuses at 4 weeks, Vet put her on Cheque drops for 1 year. Bred right after Cheque stopped - 9 pups. Cycles became normal - no more problems. 1 said - uterus does not have time to rebuild itself in 3.5 - 4 mos cycles; ovaries not normal. 1 said - put on Cheque drops for 6 mos - bred after - no litter. 1 said - short cycles can happen when bitch has cystic ovaries - have to implant semen in order to conceive. Thanks again, Darlene shebland@xxxxxxxx ============================================================================ 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 ============================================================================