Sex

Field Spaniels, like many other dog breeds, generally reach sexual maturity and have their first heat cycle between the ages of 6 to 12 months. However, it's important to note that the exact timing can vary among individuals and can be influenced by factors such as genetics, size, and overall health.

Female Field Spaniels typically experience their heat cycle, also known as estrus, every six to eight months. The heat cycle consists of several stages, including proestrus, estrus, and diestrus.

During the proestrus stage, which typically lasts around 9 to 13 days, female Field Spaniels undergo hormonal changes. They may exhibit signs such as swelling of the vulva, a bloody discharge, and attracting male dogs but not yet being receptive to mating.

The estrus stage follows the proestrus stage and usually lasts about 9 to 13 days. This is the period when the female is receptive to mating and can potentially become pregnant if bred with a male dog. During this time, the discharge may become lighter in colour, and the female may actively seek the attention of male dogs.

After the estrus stage, the diestrus stage begins, lasting around 60 to 90 days. If the female Field Spaniel did not become pregnant during estrus, her reproductive system will return to a state of rest during diestrus. The discharge will typically cease, and the female will no longer show signs of receptivity to male dogs.