In cows, palpation of placentomes is feasible around which days?

• A. 60-65 days
• B. 70-75 days
• C. 75-80 days
• D. 65-70 days

Answer: (D)

Palpation of placentomes by rectal exam becomes feasible once placentation has progressed enough for the cotyledons on the fetal membranes to form palpable nodules against the maternal caruncles. This tends to occur in mid-gestation, with the commonly used window around 65 to 70 days of pregnancy. Before this window, placentomes are too small to feel reliably, and while they become more obvious later, the reliable, typical window is 65–70 days. So the option that best fits this timing is 65-70 days.