Ultrasonographic Fetometry and Fetal Structures during Early Pregnancy in Surti Buffaloes

Abstract

Ultrasonographic evaluations of early pregnant Surti buffaloes revealed that the uterine fluid was visible on Day 18 of pregnancy, yet this was not a sure sign of pregnancy. The amniotic vesicle could be detected by Day 26 and was a sure sign of pregnancy. The embryo appeared on Day 26 but with clarity on Day 30. Fetal heart beats were visible from Day 26 and increased significantly (p<0.05) from Day 42 compared to Day 30, 34 and 38 of gestation and remained elevated till Day 62 of gestation. The crown rump length (CRL) of the embryo / fetus could be measured using inbuilt callipers starting from Day 30 till Day 58.
(Russo et al., 2010) buffaloes. Sonographic
Transrectal ultrasonography has gained popularity for evaluation of follicular dynamics (Baruselli et al., 1997; Awasthi et al., 2006), early pregnancy, fetal deaths and fetal growth (Karen et al., 2007; Ali and Fahmy, 2008; Russo et al., 2009). Real time B-mode ultrasound was used to detect and monitor the early conceptus, its growth and its anatomical features in Murrah (Pawshe et al., 1994), Egyptian (Karen et al., 2007), Nili Ravi (Naseer et al., 2012), Bangladeshi (Rabidas and Gofur, 2017) and Mediterranean
fetometry was performed in a few studies (Pawshe et al., 1994; Ali and Fahmy, 2008). Similar evaluations in Surti breed of buffaloes are unavailable. The present study evaluated the early appearance of embryo/fetus and its annexes during pregnancy.