How to Keep My Male Dog From Mating With My Females

An "unfixed." or intact, female dog experiences heat one to three times per year, depending on the dog's breed. When the dog goes into heat, she emits a pheromone which attracts male dogs to her and tells them she is ready for mating. Observing the dog for signs of the approaching heat is necessary if you have intact male dogs in your home. Locking the female away until her heat is over is the only way you can prevent her from getting pregnant.

Things You'll Need

  • Tie-out or fence
  • Kennel
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Instructions

    • 1

      Observe the female dog for signs of approaching heat. These signs include a red and swollen vulva, bloody discharge, frequent urination and a desire to roam. There are generally 10 days of these signs before the dog enters heat. When the dog is taken outside, keep her with you on a leash or put her in a fenced yard. It is recommended to separate the males from the female at this point to prevent fights.

    • 2

      Put the female in a kennel or room inaccessible to the male dogs once she shows signs of heat. During heat she produces a clear or straw colored discharge and would willingly accept a male dog. This phase lasts five to nine days. Keep her separated until this phase is over. Do not take her outside or neighboring male dogs will smell her and come over.

    • 3

      Spay your female dog if there is no plan for her to be mated. This eliminates heat and the dog is unable to become pregnant. There is also an injection your veterinarian can give the dog three weeks prior to her heat period. This injection prevents the dog from entering heat. There are no side effects of this injection and the dog is able to be bred at a later time.