Determination of the gestational age through ultrasound measurements of some uterine and foetal parameters in Bulgarian local goats.
Manol KaradaevIvan R FasulkovStanimir YotovStefka AtanasovaNasko VasilevPublished in: Reproduction in domestic animals = Zuchthygiene (2018)
The aim of the current study was to determine the gestational age in goats through the measurement of some foetal and uterine structures. Twenty-four pregnant Bulgarian local goats were submitted to ultrasound foetometry by transrectal and transabdominal approaches. Ultrasound measurement of studied parameters was done at 7-day intervals during the first trimester of gestation (days 21-49) and at 14-day intervals between gestation days 49 and 133. Associations of foetometry data with foetal age were investigated by linear (y = a + bx), quadratic (y = ax2 + bx + c) and exponential (y = axn ) equations. According to the results, some biometric parameters (uterine lumen diameter, crown-rump length, trunk diameter, biparietal diameter, foetal aortic diameter) exhibited a stronger correlation to gestational age (R2 ≥ 0.90) and lower standard error of the estimate (SEE ≤ 8) as compared to foetal eye orbit diameter, and outer and inner placentome diameters (R2 ≤ 0.90; SEE ≥ 8). Each of these biometric parameters could be measured in different periods of gestation, thus allowing for monitoring and determination of foetal age at almost all stages of pregnancy.
Keyphrases
- gestational age
- preterm birth
- birth weight
- optic nerve
- magnetic resonance imaging
- ultrasound guided
- pregnant women
- aortic valve
- solid phase extraction
- left ventricular
- contrast enhanced ultrasound
- electronic health record
- heart failure
- physical activity
- molecularly imprinted
- coronary artery
- optical coherence tomography
- pulmonary artery
- pulmonary arterial hypertension
- preterm infants
- tandem mass spectrometry