Comparative efficacy of two-dimensional mode and color Doppler sonography in predicting gender of the equine fetus.
Abstract: Ultrasonographic fetal sexing is of utmost economic importance for horse breeders. Relatively, a few studies have been conducted to determine fetal sex in mare using transrectal Doppler ultrasound. This study aimed to compare two sexing techniques, two-dimensional (2D) mode and color Doppler ultrasonography. Methods: The study was conducted on 39 mares under field conditions. Examinations were performed using the ultrasonic model device (Medison SonoAce Pico, South Korea), equipped with real-time 3-7 MHz convex multifrequency transducer. Fetal sex diagnosis was carried out in two periods of pregnancy, early period (57-80 days of gestation) and late period (80-150 days of gestation). Results: No difference (p=0.4) was observed between the efficiency of the 2D mode and Doppler ultrasound in sex determination with the respective frequency of 74% and 85%. The best time to sex the early fetus was between 57 and 70 days of gestation and between 90 and 120 days for the older fetus. Conclusions: The accuracy of sex determination can be increased using Doppler mode compared to 2D mode, especially in the early period between 57 and 70 days, in male more than female sex.
Publication Date: 2019-02-23 PubMed ID: 31040577PubMed Central: PMC6460860DOI: 10.14202/vetworld.2019.325-330Google Scholar: Lookup
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- Journal Article
Summary
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The research article investigates how effective two-dimensional (2D) mode and color Doppler sonography are at determining the sex of unborn horses. The researchers concluded that Doppler mode appeared to be slightly more accurate than 2D mode, particularly during the early gestation period and in identifying male foetuses.
Research Aims and Methodology
- The study focuses on evaluating the efficacy of two different ultrasonography techniques – the two-dimensional (2D) mode and color Doppler sonography, in determining the sex of a horse fetus.
- The economic benefit to horse breeders is outlined as the primary motivation for the research.
- The research was conducted on 39 mare horses that were examined under field conditions.
- The ultrasound device used was a Medison SonoAce Pico, equipped with a real-time 3-7 MHz convex multifrequency transducer.
- The determination of fetal sex was performed at two different pregnancy stages: the early period (57-80 days of gestation) and the late period (80-150 days of gestation).
Observations and Findings
- The findings showed no significant difference between the efficiency of the 2D mode and Doppler ultrasound in determining the fetus sex. The efficiency rate was 74% for the 2D mode and 85% for the Doppler ultrasound.
- The research determined that the optimal time for determining the sex of the fetus in its early stage was between 57 and 70 days, while for an older fetus, it was found to be between 90 and 120 days.
Conclusions
- While both the 2D mode and Doppler ultrasound fared reasonably well in determining the fetus’s sex, the accuracy seemed to increase using the Doppler mode, especially during the early gestation period (57 to 70 days).
- This increased accuracy was particularly noticeable in identifying male fetuses over female ones.
- These results could offer beneficial insights for horse breeders in terms of resource allocation and planning.
Cite This Article
APA
Mebarki M, Kaidi R, Azizi A, Basbaci M.
(2019).
Comparative efficacy of two-dimensional mode and color Doppler sonography in predicting gender of the equine fetus.
Vet World, 12(2), 325-330.
https://doi.org/10.14202/vetworld.2019.325-330 Publication
Researcher Affiliations
- Higher National Veterinary School, 16270, Street Issad Abbes, Oued Smar, Algiers, Algeria.
- Department of Veterinary Science, Veterinary Sciences and Agricultural Sciences Institute, University of Batna, Algeria.
- Veterinary Sciences Institute, University of Blida, BP 270, Algeria.
- Department of Veterinary Science, Veterinary Sciences and Agricultural Sciences Institute, University of Batna, Algeria.
- Veterinary Sciences Institute, University of Blida, BP 270, Algeria.
References
This article includes 21 references
- Bucca S. Equine fetal gender determination from mid to advanced-pregnancy by ultrasound. Theriogenology 2005;64(3):568–571.
- Aurich C, Schneider J. Sex determination in horses current status and future perspectives. Anim. Reprod. Sci. 2014;146:1–2. 34–41.
- Herrera C, Morikawaa M.I, Belloa M.B, Meyerena M, Eusebio C.J, Dufourqa P, Martinez M.M, Llorentea J. Setting up equine embryo gender determination by preimplantation genetic diagnosis in a commercial embryo transfer program. Theriogenology 2014;81(5):758–763.
- Panarace M, Pellegrini R.O, Basualdo M.O, Belé M, Ursino D.A, Cisterna R, Desimone G, Rodriguez E, Medina M.J. First field results on the use of stallion sex-sorted semen in a large-scale embryo transfer program. Theriogenology 2013;81(4):520–525.
- Muller E, Wittkowski G. Visualization of the male and female characteristics of bovine fetuses by real-time ultrasonics. Theriogenology 1986;25(4):571–574.
- Curran S.S, Ginther O.J. Ultrasound diagnosis of equine fetal sex by location of the genital tubercle. J. Equine Vet. Sci. 1989;9(2):77–83.
- Tönissen A, Martinsson G, Otzen H, Schürmann K, Schütze S, Ertmer F, Kassens A, Sielhorst J, Brehm R, Sieme H. To perform fetal gender determination in the mare by ultrasound during early and advanced gestation. Pferdeheilkunde 2015;31(2):153–158.
- Carmo M.T, Oliveira J.V, Almeida M.T, Alvarenga M.A. Avaliaçãoultra-sonográfica da gônada fetal emequinos:Uma nova alternativa para sexagem. In:IX Conferência Anual da ABRAVEQ, 2008. IX Conferência Anual da ABRAVEQ e IV Congress Internacional de Medicina Veterinária, São Paulo. 2008.
- Holder R.D. Fetal sex determination in the mare between 55 and 150 days gestation. AAEP Proc. 2000;46(1):321–324.
- Livini M. Determination of fetal gender by transrectal ultrasound examination:Field's experience. Proc. Am. Equine Pract. 2010;56(1):323–327.
- McGladdery A. Equine Fetal Sex Determination. In:Proceedings of the Annual Meeting of the Italian Association of Equine Veterinarians, Montesilvano, Italy. 2011.
- Turner R.M. Fetal Sexing for the Practitioner. Proceedings of the Annual Resort Symposium of the American Association of Equine Practitioners. Aruba, Netherlands, Antilles: Oranjestad; 2013. pp. 119–124.
- Brinsko S.P, Blanchard T.L, Varner D.D, Schumacher J, Love C.C, Hinrichs K, Hartman D.L. Transrectal ultrasonography in broodmare practice. In: Brinsko S.P, Blanchard T.L, Varner D.D, Schumacher J, Love C.C, editors. Manual of Equine Reproduction. 3rd ed. Ch. 5. Maryland Heights, Missouri: Mosby Elsevier; 2011. pp. 54–72.
- Cuervo-Arango J. Choosing the sex of the offspring in a commercial equine embryo transfer center. Med. Weter. 2015;71(4):195–197.
- Zuviria S.M, Zagrajczuk A. Application of ultrasound technique in early fetal gender determination - the field study. J. Equine Vet. Sci. 2016;41(1):57–58.
- Renaudin C.D, Gillis C.L, Tarantal A.F. Transabdominal combined with transrectal ultrasonographic determination of equine fetal gender during midgestation. Proc. Am. Equine Pract. 1997;43(6):252–255.
- Resende H.L, Carmo M.T, Ramires N.C, Alvarenga M.A. Determination of equine fetal sex by Doppler ultrasonography of the gonads. Equine Vet. J. 2014;46(1):756–758.
- Resende H.L, Carmo M.T, Alvarenga M.A. Use of doppler ultrasound for equine fetal sex determination. Reprod. Fertil. Dev. 2012;25(1):285.
- Kotoyori Y, Yoko N, Ito K, Kimura Y, Korosue K, Ashihara N, Nambo Y. Transrectal 3-dimensional ultrasound examination of the equine fetus during the first half of gestation. Anim. Reprod. Sci. 2010;121(1-2):S327–S328.
- Kotoyori Y, Yokoob N, Itoc K, Murased H, Satod F, Korosued K, Nambod Y. Technical note three-dimensional ultrasound imaging of the equine fetus. Theriogenology 2012;77(7):1480–1486.
- Crişan M.I, Damian A, Morar I, Páll E, Peştean C, Groza I.Ş. Equine embryo sexing and ultrasonographic fetal sexing interests and applicability. Anat. Histol. Embryol. 2016;45(5):329–337.
Citations
This article has been cited 1 times.- Ortega-Ferrusola C, Gómez-Arrones V, Martín-Cano FE, Gil MC, Peña FJ, Gaitskell-Phillips G, Da Silva-Álvarez E. Advances in the ultrasound diagnosis in equine reproductive medicine: New approaches. Reprod Domest Anim 2022 Oct;57 Suppl 5(Suppl 5):34-44.
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