Accuracy of Flock Pregnancy Diagnosis in Local Iraqi Ewes by A-mode Ultrasound Device

Abstract

Abstract: The present study was conducted to evaluate the accuracy of flock pregnancy diagnosis on 137 day after ram introduction in local Iraqi ewes by A-mode ultrasound device. This field trial were conducted in Anbar province, Iraq during the period from April to November 2019. One hundred and thirteen (113) non pregnant local Iraqi ewes were used with an age ranged between 2-5 years. Mating was carried out with five fertile rams starting from the middle of April. The ewes were examined only once a day 137 after rams introduction by A-mode ultrasound device. Sensitivity, specificity, positive and negative predictive value and accuracy were 100, 98.5, 97.9, 100 and 99.1% respectively. The results study suggest that the A-mode ultrasound device (Renco Preg-tone) is accurate when detecting pregnancy status in sheep at day 137 after ram introduction or 62 - 120 days of gestation.