Geishauser T, Reiche D, Seeh C, Thünker B, Verwohlt S, Failing K
Medical and Forensic Veterinary Clinic II (Internal Disease of Ruminants), Justus-Leibig-University Geissen/Germany.
Dtsch Tierarztl Wochenschr. 1996 Nov;103(11):465-8.
Ruminal and abomasal ammonia concentrations were determined in cows with left displaced abomasum (LDA), right displaced abomasum (RDA), or abomasal volvulus (AV) before the abomasum was corrected, as well as one and three days later, and compared with those from healthy control cows fed hay or hay and concentrates. In LDA, RDA, and AV, ruminal and abomasal ammonia concentrations before correction of the position of the abomasum significantly exceeded ammonia concentrations in control cows during hay diet. In LDA, ruminal and abomasal ammonia concentration before correction did not differ from control cows during hay/concentrate diet, whereas in RDA and AV, ruminal and abomasal ammonia significantly exceeded control cows during hay/concentrate diet. Ammonia concentrations significantly differed between forms of displacement before correction and one day after correction, with LDA showing lowest, RDA intermediate and AV highest ruminal ammonia values, and LDA and RDA showing lower abomasal ammonia values than AV. However, three days after correction, ruminal and abomasal ammonia concentrations did not differ between LDA, RDA and AV. Up to the third day after correction, ruminal and abomasal ammonia concentrations significantly decreased in LDA, RDA and AV. On the third day after correction, ruminal and abomasal ammonia concentrations in LDA, RDA and AV did not differ from control cows during hay diet, and were significantly lower than in control cows during hay/concentrate diet. These findings suggest disturbances in the protein metabolism of cows with abomasal displacement.
在皱胃复位前、复位后1天和3天，分别测定左方变位皱胃（LDA）、右方变位皱胃（RDA）或皱胃扭转（AV）奶牛的瘤胃和皱胃氨浓度，并与采食干草或干草加精料的健康对照奶牛的氨浓度进行比较。在LDA、RDA和AV中，皱胃位置矫正前瘤胃和皱胃氨浓度显著高于干草日粮期对照奶牛的氨浓度。在LDA中，矫正前瘤胃和皱胃氨浓度与干草/精料日粮期对照奶牛无差异，而在RDA和AV中，瘤胃和皱胃氨浓度显著高于干草/精料日粮期对照奶牛。矫正前和矫正后1天不同移位形式之间的氨浓度存在显著差异，LDA的瘤胃氨值最低，RDA居中，AV最高，LDA和RDA的皱胃氨值低于AV。然而，矫正后3天，LDA、RDA和AV之间的瘤胃和皱胃氨浓度无差异。直至矫正后第3天，LDA、RDA和AV的瘤胃和皱胃氨浓度均显著下降。矫正后第3天，LDA、RDA和AV的瘤胃和皱胃氨浓度与干草日粮期对照奶牛无差异，且显著低于干草/精料日粮期对照奶牛。这些发现提示皱胃移位奶牛的蛋白质代谢存在紊乱。
