Monitoring fetal development in sheep by using real- time ultrasonography

Abstract

This experiment includes 20 local ewes aged between 2 to 5 years. The aim of this study was to determine the growth pattern of sheep embryo by observing some embryonic organs by using real- time ultrasonography5-7MHz, these organs include heart, allantois, limb bad, intestinal disc, rumen, brain, aortic arch, lung, vertebrate, ribs and liver. And measurement of embryonic vesicle diameter, crown ramp, amniotic vesicle diameter, transthorasic, transabdominal, cotyledon high and width, head length and bi parietal bone. Results showed that there is high correlation (0.931-0.977) between these measurement and gestational age, early pregnancy diagnosis can be detected by observing embryonic vesicle at 14 days after breeding.