Here's a breakdown of the different stages:
* Proestrus: This stage lasts around 7-10 days and is characterized by swelling of the vulva, bloody discharge, and increased attention from male dogs.
* Estrus: This is the most fertile phase and lasts around 9 days. The discharge becomes lighter in color and the female is receptive to mating.
* Diestrus: This phase lasts around 60-90 days and is when the dog's body prepares for pregnancy. If pregnancy doesn't occur, the cycle starts over.
* Anestrus: This is the resting phase, lasting about 4-5 months, before the cycle repeats.
It's important to note that these are just general guidelines, and individual dogs can vary. If you are concerned about your dachshund's cycle, it's best to consult with a veterinarian.