Dewitt Shane F, Bedenice Daniela, Mazan Melissa R
Department of Clinical Sciences, School of Veterinary Medicine, Tufts University, North Grafton, MA 01536, USA.
J Am Vet Med Assoc. 2004 Aug 15;225(4):578-83, 539. doi: 10.2460/javma.2004.225.578.
Two adult female alpacas were evaluated for acute onset of weakness, pale mucous membranes, and signs of depression of unknown etiology. Both alpacas had intravascular hemolysis, anemia, and Heinz body formation and had been fed wilted red maple leaves. Clinical signs developed several days after ingestion of the leaves. No other toxin exposure was reported, and no parasites were detected. Dietary copper and nitrate-nitrite concentrations were evaluated and determined to be within reference limits. Both alpacas continued to become profoundly anemic with continued hemolysis. This necessitated blood transfusion as a life-saving intervention; however, prior to whole blood being available, transfusion with bovine hemoglobin glutamer was necessary. Both alpacas recovered without complications.
对两只成年雌性羊驼进行了评估，它们出现了急性虚弱、黏膜苍白以及病因不明的抑郁症状。两只羊驼均发生了血管内溶血、贫血和海因茨小体形成，并且都曾食用过枯萎的红枫叶。临床症状在摄入树叶几天后出现。未报告有其他毒素暴露情况，也未检测到寄生虫。对日粮中的铜和硝酸盐 - 亚硝酸盐浓度进行了评估，确定其在参考限值范围内。两只羊驼因持续溶血而继续出现严重贫血。这使得输血成为一项挽救生命的干预措施；然而，在有全血可用之前，必须输注牛血红蛋白谷氨酰胺。两只羊驼均康复且无并发症。
