The normal progesterone level in dogs varies and depends on various factors such as the stage of the reproductive cycle, age, and health condition of the individual dog. There is not a single fixed value that applies to all dogs.

Jun 19, 2024

The normal progesterone level in dogs does not have a fixed range, and its value can vary depending on factors such as the dog's status, age, and physical condition. Based on relevant information compiled from reference articles:

Changes in progesterone levels: The progesterone level in dogs gradually increases over time, following a cyclical pattern, and the increase in progesterone levels is regular. For example, during the early follicular phase (around day 44), the progesterone level may reach 35 ng/ml; during ovulation (around day 58), the progesterone level may reach 58 ng/ml.

Optimal breeding time: When a dog reaches the optimal breeding time, the progesterone level may range from 10 to 30 ng/ml, or it may exceed 60 ng/mL. For instance, studies have shown that during the estrus period of female dogs, between the LH+2 and LH+3 times (i.e., before and during ovulation), the average serum progesterone concentration is 4.8±0.9 ng/ml and 7.2±1.3 ng/ml, respectively.

Special cases: In certain special cases, such as when a bitch's progesterone level is 46 ng/ml, it is considered normal, and the breeding success rate is greater than 80%.

In summary, the normal progesterone level in dogs is a relatively flexible range that needs to be judged based on the specific situation and condition of the dog. Monitoring and understanding progesterone levels during critical periods such as breeding and pregnancy are essential for ensuring the reproductive health and success of dogs. If there are any questions or concerns about a dog's progesterone level, it is recommended to consult a veterinarian or a professional institution for further examination and diagnosis.

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