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  2. Estrous cycle - Wikipedia

    en.wikipedia.org/wiki/Estrous_cycle

    A female dog is usually diestrous (goes into heat typically twice per year), although some breeds typically have one or three cycles per year. The proestrus is relatively long at 5 to 9 days, while the estrus may last 4 to 13 days, with a diestrus of 60 days followed by about 90 to 150 days of anestrus.

  3. Canine reproduction - Wikipedia

    en.wikipedia.org/wiki/Canine_reproduction

    During proestrus and estrus, females may have a clear, blood tinged, or bloody discharge. Dogs during these stages are often informally referred to as being in heat. The length of these cycles varies greatly among breeds and even between individuals of the same breed. Proestrus and estrus can last anywhere from 5 days to 21 days. [5] 3.

  4. Dog breeding - Wikipedia

    en.wikipedia.org/wiki/Dog_breeding

    Dog breeding is the practice of mating selected dogs with the ... A dog in estrus, also known as being "in heat", can become pregnant during this 3- to 21-day period ...

  5. Here are signs of heat exhaustion in dogs & tips to best ...

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  6. Dog behavior - Wikipedia

    en.wikipedia.org/wiki/Dog_behavior

    Female dogs have their first estrus ("heat") at 6 to 12 months-of-age; smaller dogs tend to come into heat earlier whereas larger dogs take longer to mature. Female dogs have an estrous cycle that is nonseasonal and monestrus, i.e. there is only one estrus per estrous cycle.

  7. Why do dogs get stuck when mating? Vet reveals ... - AOL

    www.aol.com/why-dogs-stuck-mating-vet-110007798.html

    If you don't want your female pup to breed, you'll want to read up on how long a dog stays in heat so that you can avoid them being off-leash during this time or consider spaying or neutering your ...

  8. What to Do When Your Cat Is in Heat (Without Overstepping ...

    www.aol.com/cat-heat-without-overstepping-bounds...

    Typically, heat begins in spring and lasts through fall; in climates with longer days, heat could reoccur year-round. Heat in cats lasts anywhere from two days to three weeks, but six to eight ...

  9. Rut (mammalian reproduction) - Wikipedia

    en.wikipedia.org/wiki/Rut_(mammalian_reproduction)

    The second breeding phase of the rut takes place three to four weeks after the first breeding phase. This is due to younger cows coming into estrus, as well as older cows that were not bred on their first estrus cycle coming back into estrus. Herd bulls are less aggressive towards satellite bulls at this phase in the rut due to exhaustion. [14]