Abstract：
The evaluation of hematological and plasma biochemical parameters and the subsequent establishment of reference intervals facilitate the diagnosis of the health status of animals. This work aimed to determine the blood parameters of wild specimens of the stingrays Potamotrygon motoro and Potamotrygon orbignyi from the lower Solimões River region, Amazonas, Brazil. One hundred forty-one stingrays were captured, 92 specimens of P. motoro and 49 of P. orbignyi, of both sexes and at different stages of development. No effect of sex was observed on the blood parameters of juvenile animals for both species. P. motoro neonates presented a distinct hematological and biochemical profile, with significantly lower hematocrit values, hemoglobina, number of erythrocytes, mean corpuscular hemoglobin concentration, monocytes, plasma glucose, total proteins, albumin, and globulin. On the other hand, total cholesterol and urea levels were significantly higher in this same group compared to juveniles of the same species. Comparison between species revealed lower values of triglycerides and total cholesterol in P. orbignyi of both sexes. The results obtained are pioneering for these Amazonian species in white water environments and will serve as a basis for evaluating the health status of wild stingrays. Thus, from the analysis of the blood of the P. motoro and P. orbignyi stingrays, it was possible to observe good health conditions.
摘要：
血液学和血浆生化参数的评估以及随后的参考区间的建立有助于动物健康状况的诊断。这项工作旨在确定来自索里姆斯河下游地区的黄貂Potamotrygonmotoro和Potamotrygonorbignyi野生标本的血液参数，亚马逊,巴西。一百四十一条黄貂被捕获，92份摩托标本和49份奥比尼标本，在不同的发展阶段。对于这两个物种，均未观察到性别对幼年动物的血液参数的影响。P.Motoro新生儿表现出明显的血液学和生化特征，血细胞比容值显着降低，血红蛋白,红细胞数,平均红细胞血红蛋白浓度，单核细胞,血浆葡萄糖，总蛋白质，白蛋白,和球蛋白。另一方面,与同一物种的少年相比，同一组的总胆固醇和尿素水平明显更高。物种之间的比较显示，两性的P.orbignyi的甘油三酸酯和总胆固醇值均较低。所获得的结果对于这些亚马逊物种在白水环境中是开创性的，并将作为评估野生黄鱼健康状况的基础。因此，根据对摩托和奥比格尼黄貂的血液的分析，可以观察到良好的健康状况。
