Volume: 56 Issue: 4
Year: 2025, Page: 578-584, Doi: https://doi.org/10.51966/jvas.2025.56.4.578-584
Received: July 31, 2025 Accepted: Oct. 3, 2025 Published: Dec. 31, 2025
The present study evaluated the Doppler indices of the umbilical (UMA) and uterine arteries (UTA) in singleton and multiple pregnancies of Malabari goats. Sixty-eight pregnant goats were categorised into singleton (Group I, n = 32) and multiple pregnancies (Group II, n = 36) based on gestational sac and foetal counts by ultrasonography on day 21, 30, 45 and 60 of gestation. Pulsatility index (PI) and resistance index (RI) of UMA and bilateral UTA were assessed on day 45, 90 and 120 of gestation. In singleton pregnancies, the PI of UMA significantly decreased from 1.91 ± 0.04 to 1.24 ± 0.01, while in multiples it declined from 1.51 ± 0.03 to 1.17 ± 0.02 (P < 0.05). The RI of UMA reduced from 0.81 ± 0.01 to 0.66 ± 0.01 in singletons and from 0.80 ± 0.01 to 0.66 ± 0.01 in multiples (P < 0.05). The significantly higher PI of UMA in singleton pregnancies indicated the influence of foetal number on foeto-placental resistance during the pregnancy in this breed. The PI of left UTA decreased 1.69 ± 0.08 to 1.23 ± 0.01 in singletons and 1.69 ± 0.07 to 1.24 ± 0.01 in multiples. The PI of right UTA reduced from 1.77 ± 0.07 to 1.24 ± 0.02 and 1.78 ± 0.07 to 1.25 ± 0.02 in singleton and multiple pregnancies, respectively. The RI of bilateral UTA also showed a declining trend (P < 0.05) without intergroup differences. All Doppler indices declined with gestational progression, reflecting adaptive haemodynamic changes in Malabari goats.
Keywords: Umbilical artery, uterine artery, singleton, multiple pregnancy, doppler indices
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© 2025 Shalini et al. This is an open access article distributed under the terms of the Creative Commons Attribution 4.0
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Shalini, G., Aravind, A., Jayakumar, C., Becha, B.B., Gleeja, V.L., Bindu, K.A. and Syamala, K. 2025. Doppler indices of umbilical and uterine arteries in singleton and multiple pregnancies of Malabari goats. J. Vet. Anim. Sci. 56 (4): 578-584