Multiple choice

How many days after breeding can a pregnancy be detected by ultrasound?

  1. Between 30 and 55 days

  2. Between 28 to 30 days

  3. Between 14 and 28 days

  4. Before 14 days

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Transrectal ultrasonography is a common diagnostic tool for pregnancy. While it can detect structures earlier, 28 to 30 days is the standard window for reliable pregnancy confirmation in dairy cattle.