Determination of gestational age by measuring fetal heart diameter with transrectal ultrasonograph in sheep

• Autorzy: Oral H , Pancarci S.M. , Gungor O. , Kacar C.
• Języki publikacji: EN

Abstrakty

EN

The study investigated the efficacy of fetal heart diameter for estimating gestational age by using transrectal ultrasonograph. For this purpose, two experiments (two stages of study) were performed on 36 fat-tailed sheep. In the first experiment, when the pregnancies had been detected 30 days after breeding (day 0), fetal heart, biparietal and trunk diameters were measured at 15-day intervals between days 40 and 100 of pregnancy to compare the estimated and actual gestational ages in 28 ewes. In the second experiment - a blind study - gestational ages were estimated at unknown ages of pregnancy by the operator in 8 ewes. There were positive correlations (p < 0.01) between the estimated and actual gestational ages determined by fetal heart, biparietal and body trunk diameters in stage I and stage II of the study, respectively (r = 0.99, r = 0.99; r = 0.99 and r = 0.89, r = 0.91, r = 0.97). In conclusion, transrectal ultrasonographic examination was reliable tool to estimate gestational age between days 40 and 100 of pregnancy, and estimatiing gestational age by fetal heart diameter was as reliable as that estimated by biparietal and trunk diameters.

Słowa kluczowe

EN

sheep; ultrasonography; fetal heart diameter; gestational age; determination; pregnancy diagnosis

• Wydawca: -
• Czasopismo: Medycyna Weterynaryjna
• Rocznik: 2007
• Tom: 63
• Numer: 12
• Opis fizyczny: p.1558-1560,fig.,ref.

Twórcy

autor

Oral H

• Kafkas University, 36100 Kars, Turkey

autor

Pancarci S.M.

autor

Gungor O.

autor

Kacar C.

Bibliografia

• 1.Aiumlamai S., Fredriksson G., Nilsfors L.: Real-Time Ultrasonography for Determining the Gestational Age of Ewes. Vet. Rec. 1992, 131, 560-562.
• 2.Amiri B. E., Karen A., Cognie Y., Sousa N. M., Hornick J. L., Szenci O., Beckers J. F.: Diagnostic et suivi de gestation chez la brebis: réalités et perspectives. INRA Prod. Anim. 2003, 16, 79-90.
• 3.Chavez Moreno J., Steinmann Chavez C., Bickhardt K.: Fetal heart rate measurement and sonographic fetometry for determination of fetal age in sheep. Dt. Tierärztl. Wschr. 1996, 103, 478-480.
• 4.Doizé F., Vaillancourt D., Carabin H., Bélanger D.: Determination of Gestational Age in Sheep and Goats Using Transrectal Ultrasonographic Measurements of the Placentomes. Theriogenology 1997, 48, 449-460.
• 5.Greenwood P. L., Slepetis R. M., McPhee M. J., Bell A. W.: Prediction of Stage of Pregnancy in Prolific Sheep Using Ultrasound Measurement of Fetal Bones. Reprod. Fertil. Dev. 2002, 14, 7-13.
• 6.Hata T., Senoh D., Hata K., Miyazaki K.: Intrauterine Sonographic Assessments of Embryonic Heart Diameter. Human Reprod. 1997, 12, 2286-2291.
• 7.Kähn W.: Veterinary Reproductive Ultrasonography. Mosby&Wolfe, London 1994, pp. 187-191.
• 8.Kähn W., Achtzehn J., Kähn B., Richter A., Schulz J., Wolf M.: Zur Sonographie der Gravididät bei Schafen. II. Genauigkeit der transrektalen und der transkutanen Trächtigkeitsdiagnose. D. Tierärztl. Wschr. 1993, 100, 29-31.
• 9.Karen A., Kovacs P., Beckers J. F., Szenci O.: Pregnancy Diagnosis in Sheep: Review of the Most Practical Methods. Acta Vet. Brno 2001, 70, 115-126.
• 10.Kaulfus K. A., Uhlich K., Gille U.: Ultrasonographische Messungen zum fetalen Wachstum des Schafes zwischen dem 20. und 50. Trächtigkeitstag. D. Tierärztl. Wschr. 1999, 106, 433-438.
• 11.Küplülü Þ., Çetin Y., Macun H. C., Taþdemir U.: Akkaraman Irký Koyunlarda Transrektal ve Transabdominal Ultrasonografi Yöntemi ile Erken Gebelik Taný Sýnýrlarýnýn Belirlenmesi. Lalahan Hay. Araþt. Enst. Derg. 2002, 42, 25-33.
• 12.Noia G., Romano D., Terzano G. M., De Santis M., Di Domenico M., Cavaliere A., Ligato M. S., Petrone A., Fortunato G., Filippetti F., Caruso A., Mancuso S.: Ovine fetal growth curves in twin pregnancy: ultrasonographic assessment. Clin. Exp. Obstet. Gynecol. 2002, 29, 251-256.
• 13.Oral H., Alaçam E.: Estimation of Parturation Days with Foetal Heart Diameter Measurements by Transabdominal Ultrasonography in Bitches. Indian Vet. J. 2004, 81, 1116-1118.
• 14.Parraguez V. H., Duchens M., Prado M., Sales F.: Echographic study of the prenatal growth in Suffolk ewes. XI Congreso Nacional de Medicina Veterinaria, Santiago, Chile (Abstract) 2000.
• 15.Santiago-Moreno J., González-Bulnes A., Gómez-Brunet A., Toledano-Díaz A., López-Sebastián A.: Prediction Of Gestational Age By Transrectal Ultrasonographic Measurements In The Mouflon (Ovis Gmelini Musimon). J. Zoo Wildlife Med. 2005, 36, 457-462.
• 16.Taþal Ý., Ataman M. A., Dinç D. A., Ergin A., Erdem H.: Koyunlarda Gebelik Teþhisi Amacýyla A ve B-Model Real Time Ultrason Tekniklerinin Karþýlaþtýrýlmasý. Vet. Bilimler Dergisi 1995, 11, 41-45.
• 17.White I. R., Russel A. J. F.: Determination of Fetal Numbers in Sheep by Real Time Ultrasonic Scanning. Techniques in Practice. In Practice 1984, 6, 200-205.