Binder Park Zoo, Battle Creek, MI, USA.
Michigan State University College of Veterinary Medicine, East Lansing, MI, USA.
J Vet Diagn Invest. 2021 Sep;33(5):1023-1027. doi: 10.1177/10406387211027845. Epub 2021 Jun 24.
A 10-y-old giraffe () bull developed colic after a 3-mo history of reduced feed consumption. Physical examination and management were performed with 2 standing sedations. The giraffe developed metabolic alkalosis and progressive pre-renal azotemia followed by compensatory respiratory acidosis and paradoxical aciduria. A metallic "ping" sound was auscultated on the left side near ribs 10-12. The giraffe was euthanized given the grave prognosis, and postmortem examination confirmed left displacement of the abomasum (LDA) with fluid sequestration (150-190 L [40-50 gal]) within the rumen. Dental disease was evident at postmortem examination and perimortem skull computed tomography. To ensure cases of LDA are not overlooked, the position of the abomasum must be noted during postmortem examination prior to removal of the gastrointestinal tract. The risk factors for the development of LDA in giraffes are not known, and associations such as those of dairy cattle (hypocalcemia, high-concentrate low-fiber diet, and indoor housing) remain to be elucidated.
一只 10 岁的雄性长颈鹿在出现 3 个月的采食量减少后出现腹痛。通过 2 次站立镇静进行了体检和管理。这只长颈鹿出现代谢性碱中毒和进行性肾前氮血症，随后出现代偿性呼吸性酸中毒和反常性酸中毒。在第 10-12 肋骨左侧听诊到金属“叮当”声。鉴于预后严重，对长颈鹿进行了安乐死，尸检证实左腹腔移位（LDA），瘤胃内有液体蓄积（150-190 升[40-50 加仑]）。在尸检和濒死期颅骨计算机断层扫描时发现明显的牙齿疾病。为了确保不忽略 LDA 病例，在移除胃肠道之前，必须在尸检时注意胃的位置。长颈鹿发生 LDA 的危险因素尚不清楚，与奶牛（低钙血症、高浓度低纤维饮食和室内饲养）的关联仍有待阐明。
