[Right displacement of the abomasum in cattle. 2. New aspects of surgical treatment].

A dilated and dorsally displaced abomasum usually performs an additional counterclockwise rotation (1989-1994: 403 of 462 cases). A report is given about a repositioning technique that enables to correct nearly all cases of this counterclockwise rotation without removal of abomasal fluid. After the reposition the congested abomasal content flows to the intestine where it is resorbed, so that cases of right displaced abomasum (RDA, n = 275) recover without any parenteral fluid therapy within 24 to 48 hours. In cases of abomasal volvulus (AV, n = 187) the blood supply of the abomasum is disturbed, and after surgery the abomasal emptying is often delayed, due to a malfunction of the pylorus. This cases must be treated intravenously with large amounts of 0.9% NaCl-solution (20 to 30 liters) to correct volume deficit and hypochloremic blood alcalosis.