Department of Veterinary Medicine, Sri Venkateswara Veterinary University, Tirupati, 517 502, India.
YSR Administrative building, Sri Venkateswara Veterinary University, Tirupati, 517 502, India.
Vet Res Commun. 2023 Jan;47(1):179-189. doi: 10.1007/s11259-022-09941-4. Epub 2022 May 23.
The present study aims to identify potential risk factors and most possible clinical indicators of abomasal impaction in buffaloes. Among the screened buffaloes (n = 636), the logistic model was fitted for 491 buffaloes because of the non-availability of parity-related data for 145 buffaloes. Third-trimester pregnancy, feeding paddy straw alone, and concurrent disorders were identified as the potential risk factors using multivariate regression analysis. The buffaloes reared by farmers devoid of land tended to have a higher incidence of abomasal impaction. Depressed demeanour, absence of rumination, abdominal guarding, scleral congestion, sunken eyeballs, anorexia, reduced dung output, abacus beads-like faeces, colic signs (straining to defecate, frequent lying down, and kicking at abdomen), tachypnea, and tachycardia were the most repeatedly noticed clinical signs in buffaloes diagnosed with abomasal impaction. Further, the principal component analysis revealed increased rumen fluid sedimentation time and chloride content, serum creatine phosphokinase, and blood neutrophil and eosinophil content along with decreased blood lymphocytes proportion, potassium, and chloride as the greatest indicators for abomasal impaction. Next to them, a higher rumen fluid methylene blue reduction time, serum urea nitrogen, and blood total leucocyte count, along with a lower serum albumin and blood haemoglobin were the best possible indicators for diagnosis. The necropsy findings of the buffaloes that died with abomasal disorders revealed an abomasum with increased dimensions and constant pitting on pressure. Furthermore, the histopathological studies showed degeneration and necrosis of the abomasal wall with infiltrated mononuclear cells. The results of the study help in designing a comprehensive evaluation mechanism for diagnosing abomasal impaction in buffaloes.
本研究旨在确定水牛皱胃积食的潜在风险因素和最可能的临床指标。在筛选的水牛中（n=636），由于 145 头水牛的胎次相关数据不可用，因此为 491 头水牛拟合了逻辑模型。多变量回归分析确定了第三孕期妊娠、单独投喂稻谷秸秆和并发疾病是潜在的风险因素。没有土地的农民饲养的水牛更容易发生皱胃积食。抑郁的行为、无反刍、腹部僵硬、巩膜充血、眼球凹陷、食欲不振、粪便排出量减少、算盘珠样粪便、疝痛症状（排便用力、频繁躺下和踢腹部）、呼吸急促和心动过速是诊断为皱胃积食的水牛中最常注意到的临床症状。此外，主成分分析显示，皱胃积液沉淀时间和氯含量、血清肌酸磷酸激酶以及血液中性粒细胞和嗜酸性粒细胞含量增加，而血液淋巴细胞比例、钾和氯减少是皱胃积食的最大指标。其次，较高的皱胃积液亚甲蓝还原时间、血清尿素氮和血液总白细胞计数，以及较低的血清白蛋白和血液血红蛋白是诊断该病的最佳指标。死于皱胃疾病的水牛的剖检结果显示，皱胃尺寸增加，受压时有恒定的压痕。此外，组织病理学研究显示，皱胃壁变性和坏死，伴有单核细胞浸润。本研究的结果有助于设计一种全面的评估机制，用于诊断水牛皱胃积食。
