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The progesterone level in dogs has a significant impact on their reproductive activities.

by len king on May 27, 2024

The progesterone level in dogs has a significant impact on their reproductive activities.

The progesterone level in dogs has a significant impact on their reproductive activities, and the following is a detailed explanation of its effects:

Determining ovulation and estrus cycles: Progesterone testing is currently the most advanced and accurate method to determine the ovulation cycle of female dogs. By observing changes in progesterone levels, one can precisely identify the proestrus, estrus, metestrus (luteal phase), and anestrus of female dogs, thus finding the optimal breeding period and increasing the pregnancy rate of female dogs. Specifically, ovulation typically occurs 48-60 hours after detecting LH0 (peak luteinizing hormone), during which time progesterone levels rise significantly.

Increasing pregnancy rates: Breeding based on changes in progesterone levels in the blood can determine the best breeding period, allowing female dogs to achieve a pregnancy rate of over 85%, thereby increasing breeding success rates and litter sizes.

Support for early fetal growth and development: Progesterone is a biologically active hormone, mostly produced by the ovaries, which provides support and protection for the early growth and development of puppies.

Assessing luteal function: Measuring progesterone concentrations in female dogs after breeding aims to evaluate luteal function and predict the timing of parturition. After ovulation, serum progesterone concentrations in dogs rise sharply and reach a plateau after two to four weeks, which helps assess whether luteal function is normal.

In summary, the progesterone level in dogs plays an essential role in their reproductive activities. By monitoring changes in progesterone levels, one can precisely determine the estrus cycle, determine the optimal breeding period, increase pregnancy rates, support early fetal growth and development, and evaluate luteal function. Progesterone testing is a highly useful tool in the breeding process, helping breeders better manage the reproductive process of female dogs.

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