Transrectal ultrasonography for measuring of combined utero-placental thickness in pregnant Mangalarga Marchador mares.
Abstract: This study aimed to measure the physiological changes in the combined utero-placental thickness (CUPT) during the course of normal pregnancy in Mangalarga Marchador mares. Transrectal B-mode ultrasonography was used to measure CUPT in 42 pregnant mares with a mean age, 8.7 (±3.5 years). CUPT was measured every month from 150 days of gestation until delivery. CUPT was expressed as an average of three measurements of the distance (mm) between the middle part of the uterine artery and the allantoic fluid. A General Linear Model was used to evaluate the major effects of the chronological age and stage of gestation on CUPT in mares. The coefficient of determination (R2) was 0.571 (P < 0.001). There was no correlation between CUPT and the chronological age of the mares, however, there was a positive correlation between CUPT and the stage of gestation, which an accounted for 29.6% of the observed variation. CUPT significantly increased during the gestational period from 210 to 240 days and 270-300 days. These results showed CUPT increased as pregnancy advanced in the Mangalarga Marchador mares. In conclusion these effects of the stage of pregnancy on the increase in CUPT showed a physiological parameters of ultrasonography evaluation of the placenta in Mangalarga Marchador mares.
Copyright © 2017 Elsevier Inc. All rights reserved.
Publication Date: 2017-04-08 PubMed ID: 28532830DOI: 10.1016/j.theriogenology.2017.04.013Google Scholar: Lookup
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Summary
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The research article presents a study conducted to monitor the physiological change in the thickness of the uterus and placenta during the normal pregnancy of Mangalarga Marchador mares. An ultrasound technique is used for the measurement, and correlation is observed between the thickness and the stage of pregnancy.
Research Overview
- The study primarily focuses on capturing the physiological changes in the combined utero-placental thickness (CUPT) of Mangalarga Marchador mares throughout their pregnancy. The CUPT is the combined thickness of the uterus and placenta.
Procedure
- Transrectal B-mode ultrasonography, a specialized ultrasound technique, was employed to measure the CUPT in a sample of 42 pregnant mares. The chosen subjects had a mean age of 8.7 (±3.5 years).
- CUPT was measured every month starting from the 150th day of gestation up until delivery. These measurements were taken from the middle part of the uterine artery out to the allantoic fluid.
Statistical Analysis
- A General Linear Model was utilized to assess the primary impact of the age and gestational stage of the mares on CUPT.
- The model showed a coefficient of determination (R2) valued at 0.571 (P<0.001), implying a moderate level of correlation.
Findings
- No correlation was found between the CUPT and the chronological age of the mares.
- However, a positive correlation was seen between the CUPT and the stage of gestation, accounting for roughly 29.6% of the observed variation.
- The research indicated that the CUPT significantly increased during periods from 210 to 240 days, and from 270 to 300 days of gestation.
- The increase in CUPT throughout the pregnancy of Mangalarga Marchador mares suggests a correlation with advancing pregnancy stages.
Conclusion
- The research concluded that the rise in CUPT throughout the gestation period in Mangalarga Marchador mares may serve as a physiological parameter for ultrasonographic assessment of the placenta in these mares.
Cite This Article
APA
Campos IS, de Souza GN, Pinna AE, Ferreira AMR.
(2017).
Transrectal ultrasonography for measuring of combined utero-placental thickness in pregnant Mangalarga Marchador mares.
Theriogenology, 96, 142-144.
https://doi.org/10.1016/j.theriogenology.2017.04.013 Publication
Researcher Affiliations
- Department of Pathology and Veterinary Clinic, Universidade Federal Fluminense (UFF), Vital Brazil Filho Street, 64 - Icaraí, Niterói, RJ, Zip Code: 24230-340, Brazil; Program of Post Graduate in Veterinary Medicine (Clinical and Animal Reproduction), Universidade Federal Fluminense (UFF), Vital Brazil Filho Street, 64 - Icaraí, Niterói, RJ, Zip Code: 24230-340, Brazil. Electronic address: isasyllos@gmail.com.
- Embrapa Dairy Cattle, Eugênio do nascimento Street, 610 - Dom Bosco, Zip Code: 36038-330, Juiz de Fora City, MG State, Brazil. Electronic address: guilherme.souza@embrapa.br.
- Department of Pathology and Veterinary Clinic, Universidade Federal Fluminense (UFF), Vital Brazil Filho Street, 64 - Icaraí, Niterói, RJ, Zip Code: 24230-340, Brazil; Program of Post Graduate in Veterinary Medicine (Clinical and Animal Reproduction), Universidade Federal Fluminense (UFF), Vital Brazil Filho Street, 64 - Icaraí, Niterói, RJ, Zip Code: 24230-340, Brazil. Electronic address: aepinna@id.uff.br.
- Department of Pathology and Veterinary Clinic, Universidade Federal Fluminense (UFF), Vital Brazil Filho Street, 64 - Icaraí, Niterói, RJ, Zip Code: 24230-340, Brazil; Program of Post Graduate in Veterinary Medicine (Clinical and Animal Reproduction), Universidade Federal Fluminense (UFF), Vital Brazil Filho Street, 64 - Icaraí, Niterói, RJ, Zip Code: 24230-340, Brazil. Electronic address: ana_ferreira@id.uff.br.
MeSH Terms
- Animals
- Female
- Horses / anatomy & histology
- Placenta / diagnostic imaging
- Pregnancy
- Pregnancy, Animal
- Ultrasonography / veterinary
- Uterine Artery / anatomy & histology
- Uterus / blood supply
- Uterus / diagnostic imaging
Citations
This article has been cited 2 times.- Demir MC, Demir MS, Büyükbaki B, Kuru M, Kaya S, Kaçar C. Changes in Doppler Ultrasonography and Echotexture Parameters in Cows During the Last 10 Days of Pregnancy. Vet Med Sci 2025 Mar;11(2):e70256.
- Abdelnaby EA, Emam IA, El-Sherbiny HR, Fadl AM. The effects of aging and gestational month on uteroplacental vascular perfusion, and umbilical artery hemodynamics in pregnant jennies. BMC Vet Res 2022 Nov 15;18(1):404.
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