When does displaced abomasum most often occur in a mature cow?

When does displaced abomasum most often occur in a mature cow?

• A. Before calving
• B. During lactation
• C. After calving
• D. At birth

Answer: (C)

Displaced abomasum most often occurs after calving, during the early weeks of lactation. After calving, cows face a surge in milk production and often a negative energy balance, which can slow abomasal movement and allow gas to build up. The gas causes the abomasum to shift from its normal position to the left side of the abdomen, leading to displacement. This postpartum period, especially in mature, high-producing cows, is when it’s most common. It’s much less likely to occur before calving, at birth, or later in lactation.

Displaced abomasum most often occurs after calving, during the early weeks of lactation. After calving, cows face a surge in milk production and often a negative energy balance, which can slow abomasal movement and allow gas to build up. The gas causes the abomasum to shift from its normal position to the left side of the abdomen, leading to displacement. This postpartum period, especially in mature, high-producing cows, is when it’s most common. It’s much less likely to occur before calving, at birth, or later in lactation.