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Ultrasonography is especially helpful in differentiating pregnancy from other causes of uterine distention (eg, hydrometra, pyometra, mucometra). Ultrasonographic measurements can be used to calculate gestational age ( see Table: Gestational Age in Dogs and Cats).
Commercial canine relaxin assay is a reliable and specific method for pregnancy diagnosis; it may be positive as early as Day 23-25 but anecdotally seems to be more reliable and to have fewer false- negative results after Day 30.
9 Μαΐ 2000 · The time-course of events of canine pregnancy that have been carefully studied all appear to be relatively consistent among bitches and predictable when timed correctly. Timing can be accomplished based on the following, listed in the presumed order of reliability:
• Maximizes pregnancy rates and litter size (Semen and stud fees are expensive.) • Allows the breeder to plan travel for matings • Allows optimization of time for assisted breeding techniques (artificial insemination [AI] using fresh, chilled, or frozen sperm)
Animal Health Diagnostic Center. Testing Protocols & Interpretations. Canine Reproductive Function Tests. Anti-Müllerian Hormone (AMH) Test for Ovarian Remnant Syndrome, Cryptorchidism and Determination of Spayed/Castrated vs. Intact. Ovarian remnant syndrome testing consists of AMH and progesterone testing on a single sample.
26 Ιουν 2024 · Canine pregnancy testing involves several methods to determine whether a female dog (bitch) is pregnant. These tests vary in complexity, accuracy, and timing. The primary methods include hormonal assays, palpation, ultrasound, and radiography.
24 Νοε 2021 · Several research groups have examined P4 concentrations in pregnant dogs, albeit with mostly small sample sizes and a limited number of breeds, so that the normal range of P4 concentrations still needs to be further assessed at different stages of the canine pregnancy.
