Displacement of Abomasum and Its Performance on Clinical Serum Biochemistry in Dairy Cows in Taiwan

台灣乳牛第四胃異位及其臨床血清生化學之表現

莊士德(Shih-Te Chuang) ； 陳鵬文(Jacky Peng-Wen Chan) ； 劉邦成(Pan-Chen Liu) ； 張力天(Cicero Lee-Tian Chang) ； 曾秋隆(Chaun-Loong Tsang) ； 茅繼良(Chi-Liang Mao) ； 馮翰鵬(Hang-Poung Fung)

《中華民國獸醫學會雜誌》 27卷3期 (2001/09) Pp. 175-184

https://doi.org/10.7009/JTCSVS.200109.0175

摘要

第四胃異位可以說是台灣目前最常見的代謝性疾病之一，本研究目的即在了解罹患此病牛隻的血清各項離子的濃度變化以及評估手術後的恢復情形。在本試驗中，共有50個病例(87.7%)被診斷出有第四胃左側異位，7個病例有右側異位(12.3%)。病牛的平均年齡為3.83±1.14歲以及平均有過2.12±0.96次的分娩紀錄。28.1% (16/57)的病牛屬於第一次分娩的母牛，40.4% (23/57)病牛有兩次分娩紀錄，26.3% (15/57)病牛屬於有三次分娩記錄；總共有49頭病牛(86%)在分娩後第一個月內發生第四胃異位；超過一半以上的病例（56.1%或32/57）發生在夏季月份（六、七及八月）。57頭第四胃異位的乳牛當中，有45頭(78.9%)併發酮病，且第四胃異位牛隻血清中的Ca^(2+)、Mg^(2+)、K^+及Cl^-等離子平均濃度均比同牧場中正常牛隻的平均濃度低，在統計學上並具有顯著性差異(P＜0.01)。其他如P^(2-)和Na^+的平均濃度則並無顯著性差異(P＞0.05)。根據本研究的結果，我們認為右脅腹壁的大網膜固定術對於治療第四胃異位來說，是一個很好的外科方法，而乳牛泌乳初期的低血鈣症則會增加此病的發生。

關鍵字

第四胃 ； 異位 ； 血清生化學 ； 乳牛

並列摘要

Displacement of abomasum is now recognized as one of the most commonly encountered metabolic diseases in Taiwan. The purpose of this study was to estimate serum electrolyte and mineral concentrations in cows diagnosed with displacement of abomasum, as well as to evaluate the recovery rate of this disease after surgery. Fifty cows were diagnosed with left displacement of abomasum and 7 with right displacement of abomasum. These cows were 3.83±1.14 years old and experienced an average of 2.12±0.96 parturitions, and the percentages of the operations (right paralumbar omentopexy) performed on cows with first calving, and during subsequent 2nd and 3rd lactations were 28.1% (16/57), 40.4% (23/57), and 26.3% (15/57), respectively. There were 49 cows affected with displacement of abomasum in the first lactation month after calving. More than half of the surgeries (32 or 56.1%) was performed during the summer months (June, July, and August). Of the total 57 cows diagnosed with LDA or RDA, 45 (78.9%) showed signs of ketosis, displaying significantly lower concentrations of Ca^(2+), Mg^(2+), K^+, and Cl^- (P＜0.01), when compared with healthy cows from the same herds. The mean concentrations of P^(2-) and Na+ were not different for cases and controls (P＞0.05) in this study. We concluded that the right flank omentopexy is a well-accepted technique to treat displacement of abomasum, and hypocalcemia could increase the occurrence of this disease in early lactation.

並列關鍵字

Abomasum ； Displacement ； Serum biochemistry ； Dairy cows