Article Text

Real-time ultrasonography for determining the gestational age of ewes
  1. S Aiumlamai,
  2. G Fredriksson and
  3. L Nilsfors


Seven Swedish peltsheep ewes were examined weekly by transabdominal ultrasound scanning from one-and-a-half to two months of gestation until parturition. By means of a simple regression analysis, the heart rate, the biparietal diameter of the skull and the diameter of the body trunk were correlated with fetal age, and it was concluded that these measurements could be used to estimate the age of the fetus.

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