Use of B-mode ultrasonography for fetal sex determination in dogs
| Autor: | Elaine Mayumi Ueno Gil, Amália Turner Giannico, Tilde Rodrigues Froes, Daniela Aparecida Ayres Garcia |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Litter (animal)
Male medicine.medical_specialty Sex Determination Analysis Litter Size Gestational Age Ultrasonography Prenatal Fetal Development Dogs Fetus Food Animals Pregnancy Medicine Animals Small Animals reproductive and urinary physiology Gynecology Sex Characteristics Equine business.industry Ultrasound medicine.disease Confidence interval In utero embryonic structures Gestation Animal Science and Zoology Female business Cohort study |
| Zdroj: | Theriogenology. 84(6) |
| ISSN: | 1879-3231 |
| Popis: | Ultrasonographic determination of fetal sex in dogs has not previously been reported. The aim of this study was to describe a method for determination of intrauterine fetal sex using ultrasound. A cohort study was conducted in pregnant bitches to perform ultrasound examination of the fetal genitalia between the eighth and ninth week of gestation. Fetal sex was determined in utero by consensus agreement of two sonographers. Eighteen pregnant bitches were included in this study, and a total of 39 fetuses were evaluated. The accuracy of ultrasonography to determine the sex with a 95% confidence interval was 62.24% to female fetuses and 65.48% to male fetuses. The sonographic accuracy in determining fetal sex can be achieved at 100% when there are up to two fetuses in the litter; however, the accuracy of the technique reduces (66.7%) when more than three fetuses are present. This study describes the sonographic appearance of the external genitalia in canine fetuses in utero associated with a specific position of the fetus and reports that sex determination is possible between 55 and 58 days of gestation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect