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How long are dogs in heat?

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Non-spayed female dogs will normally go into "heat" or estrus twice a year. The age at which their cycles start and the duration of the cycle vary greatly between the breeds of dogs and individual dogs. If you are planning to breed your dog then you'll need to learn their estrus cycle in order to make the most use of your breeding time. read more

The time during which male dogs are attracted to a female dog is variable, approximately 18 days. read more

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