When is the First Mating in a Labrador?

When a female dog enters the mating cycle, it will undergo a nine-day period of proestrus. This is a stage during which her vulva swells, she has a bloody vaginal discharge, and her ovary begins to release eggs. In this stage, the female will be fertile and will follow her bodily instincts to mate with a male dog. Diestrus Female Labradors…
Czytaj Dalej

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