| Abstract: | Accuracy of transrectal ultrasonographic determination of fetal sex by identifying and locating the genital tubercle was determined in 29 ewes with single fetus at 60 to 69 d post breeding. Examinations were conducted once under farm conditions utilizing a real-time diagnostic scanner equipped with a linear-array 5 MHz transducer. Definite diagnoses were made after lambing. Total accuracy was 89%, and 100% (14/14) of the male fetuses and, 76% (10/13) of the female fetuses were correctly diagnosed. In 2 (7%) ewes, fetal sex was not determinable. |
