What are the Signs of a Dog in Heat?
One of the problems that many dog owners face is preventing unwanted pregnancy. If you own a male (also called a Sire), you may never know where your dog has sewn his “wild oats”. If you have a female (also called a Dam or a Bitch), you will certainly know about the pregnancy, especially when you suddenly find several puppies hiding under their mom’s fur. While the responsibility to prevent improper pregnancy lies with owners of all dogs, it seems the majority of the work is on the part of the bitch’s owners.
To prevent (or encourage) pregnancy, it’s important to know when your dog can become pregnant. Your Dam can get pregnant during her “heat” cycle (or estrus). Dogs DO NOT go through menopause the way humans do. As they grow older they are less fertile, but it is possible for your older dog to become pregnant. Dogs typically have two heats per year. Each dog differs in length of heat, discharge amount, messiness, and personality changes. Watch your dog and learn her cycle. If you are a professional breeder, or someone considering breeding your dog, you should wait until your dog is in her third heat before breeding. She should be vet checked and up-to-date on her shots. Choose her mate carefully, focusing on improving your chosen breed. Request that he is vet checked and up-to-date on his shots as well
Please read the rest of this article at it’s origin… http://www.askabreeder.com/Dog_Heat_Signs_and_Symptoms