Veterinary Clinical Medicine-I (General and Systemic)

PATHOGENESIS 

• The atonic gas-filled aboma­sum gets displaced under the rumen and upward along the left abdominal wall
• The fun­dus, greater curvature of the aboma­sum, pylorus and duodenum, omasum, reticulum and liver are also displaced to varying degrees. A reduced rumen vol­ume in the immediate postpartum period allows this displacement to occur.
• Leads to rupture of the attachment of the greater omentum to the abomasum.
• Compression of the abomasum causing a decrease in the volume of the organ and interference with normal movements.
• Metabolic alkalosis with hypochloremia and hypokalemia
• Secondary ketosis, abomasal ulceration and adhesions may occur