Question by  Binay (29)

What age should I expect a Jack Russel's first heat?


Answer by  traumatised (3285)

Jack Russells generally come into heat at around 6 to 8 months of age. It usually lasts approximately 21 days, and you can expect her to come into heat every 6 months or so after the first time unless you have her spayed.


Answer by  Nic (99)

Growing up my parents used to breed Jack Russel Terriers. They are fun and energetic dogs. They normally get their first heat cycle around six to nine months old. Then there after each six to seven months.


Answer by  Cerco (43)

A jack russel can be expected to reach its first heat cycle anywhere between 6 months to a year. That is why many veterinarians highly recommend getting you animal spayed before 6 months to avoid their first heat cycle, thus reducing its chance of getting ovarian or breast cancer.


Answer by  champaign9497 (11977)

Heats in dogs are standard when they are around 6 months old they will come into their first heat after that it depends on the dog herself I have harrier that comes into heat twice a year.

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