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Basic reproduction of the dog

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Anestrus

Beagle

Beagle, by Michael Nika Photography

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Lecture Notes

Anestrus is the final stage and represents another unique aspect of reproduction in dogs in that the bitch has estrous cycles with long period of ovarian inactivity between cycles.

Again, the length of anestrus varies greatly among dogs with factors such as breed, age, overall health, and environment all playing roles.