What Is The Canine Cycle In A Bitch

The bitch has some features in relevance to reproduction that are unique for its kind. The female dog is monoestrus and the feature of seasonality appears to be in most breeds almost nonexistent (Gobello,2001). The canine cycle is divided into four phases :a period of 5–20 day proestrus, a period of 5–15 day estrus, next a period of 50-80 day and last a period of anestrus lasting 80–240 days. Each of these phases contain a different leading hormone in dominant role altering the course of the follicle .So in proestrus the rise in estrogen ensures the follicular phase, then in the initial luteal phase there is a rise in progesterone and decline in estrogen, then the rest of the luteal phase, and last the breach between the seizing