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On the Potential Advantages of Using Progesterone Tests for Dogs

Joe Decker

It’s been observed that knowing when to breed is the single most important aspect of securing a successful pregnancy. Traditionally, dog breeders have relied on qualitative cues from female dogs to help them identify standing heat: tail flagging, behavioral shifts, swelling of the vulva, and even how the female interacts with the males. Even the best of these, however, are not as reliable as quality progesterone tests for dogs.

What Exactly Are Progesterone Tests for Dogs?
Progesterone is a hormone, one of a class known as progestogens. Progesterone is produced by a temporary endocrine gland known as the corpus luteum; the hormone is produced after ovulation and during the second half of the menstrual cycle.

As progesterone rises, a hormone known as the luteinizing hormone is also released, which precipitates the release of eggs from the ovaries. Progesterone levels also help to prepare the body to support the development of a fertilized egg and are an indicator of a female’s ability to do so. The hormone itself causes the endometrium to thicken and prevents the contractions that would expel a fertilized egg. Progesterone also stimulates the vascularization of the endometrium to nourish a developing egg and embryo.

In short, progesterone is one of the key hormonal indicators of when breeding should be attempted, and can also indicate the hope of a successful pregnancy. The use of progesterone tests for dogs will indicate current progesterone levels, helping to identify when breeding should be attempted.

Improved Likelihood of Successful Pregnancy
Attempting breeding only during the most fertile periods will improve the likelihood of successful pregnancies and the delivery of healthy litters. Especially for breeders attempting natural breeding, pinpointing the ideal time to breed will have a positive impact on the attempt.

The use of progesterone tests for dogs will also help eliminate the risk of relying on less accurate, traditional signs of the heat cycle. Progesterone results are a much more quantitative, reliable indicator of the ability of the dog’s reproductive tract to support pregnancy.


Lessened Need for Repeated Breedings
Repeated attempts at breeding can be stressful for both the males and females and particularly stressful on the females. Unsuccessful attempts can result in infections and other stress-related complications as well. Keying in on the most fertile period will help diminish the number of attempts, which can save time and money and is less stressful on the dogs.

Lower Risk of Aggressive Encounters
Dog behavior can be unpredictable even at the best of times, but there is an additional facet of uncertainty involved when hormone levels are in a state of flux. Making as few traditional breeding attempts as possible will insulate the dogs from the risk of aggressive encounters.

Potential Cost Savings
For breeders that will be traveling with their dogs, as well as for those that use expensive chilled or frozen semen, unsuccessful attempts are not only frustrating but also costly. The use of progesterone testing for dogs to identify the most fertile periods may also be able to diminish the costs of unsuccessful breeding attempts.

Visit MR Diagnostic at
Looking for a progesterone test for dogs? Do you simply have a few more questions about how you can use a progesterone test to improve your success as a dog breeder? Visit MR Diagnostic at They carry a number of high-quality progesterone test kits, semen test kits, even artificial insemination kits, and much more. Visit their website and if you have any questions, get in touch with their team at 844-673-7378.

For more information about Dog Pregnancy Test and Dog Ultrasound Machine Please visit: MR Diagnostic Services.

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