Ovarian Dynamics and Blood Flow Indices during Estrus in Purnathadi Buffaloes

Abstract

The objective was to study the ovarian dynamics and ovarian arterial blood flow by pulse-wave color Doppler ultrasonography during estrus in Purnathadi buffaloes. The mean ovarian diameter of left and right ovary was 2.27±0.08 and 2.37 ± 0.12 cm of right ovary and mean pre-ovulatory follicle diameter was 1.23±0.08 cm during estrus Purnathadi buffaloes. The mean ovarian pulsatility index and resistance index was 1.45 and 0.75 during estrus. The mean ipsilateral (on the side of pre-ovulatory follicle) and contralateral ovarian artery pulsatility index during estrus did not differ significantly (1.63±0.02 and 1.62±0.02, respectively). The mean ipsilateral (on the side of pre-ovulatory follicle) and contralateral ovarian artery resistance index during estrus did not differ significantly (0.77±0.01 and 0.75±0.01, respectively). The ovarian artery indices show non-significant levels irrespective of presence of pre-ovulatory follicle in Purnathadi buffalo.