Correlation between hematological evaluation and the type of physical activity performed by horses in the state of São Paulo-Brazil

Abstract The veterinarian has to frequently assess blood tests in equine medicine. The reference values are adapted from international literature, based on examinations of healthy horses, under a standardized climate and physical activity. This study aimed to compare the blood values obtained from sports horses and traction horses, taking into account the type of activity performed. Anamnesis and hematology data from 76 animals were used: 32 members belonged to the Traction Group (TG), corresponding to equines from traction activity (cart horses) and 44 members belonged to the Sport Group (SG), corresponding to equines used in obstacle jumping, both groups were from the Pirassununga region, State of São Paulo. Complete blood counts and plasmatic fibrinogen dosage were evaluated. The animals from the TG had lower erythrocyte count and hematocrit values. The animals from the TG had greater leukocyte values in the leukogram compared to the animals from the SG. Cart horses were found to have lower means of hematological values compared to the jumping horses. Moreover, these values were below the normal physiological range for the species.

摘要：兽医在马医学临床实践中需频繁开展血液检验评估。本研究的参考值范围源自国际文献，基于标准化环境与运动状态下健康马匹的检测数据制定。本研究旨在结合作业类型差异，对比竞技马术马与挽用役马的血液指标差异。研究纳入76匹马匹的既往病史与血液学检测数据：其中32匹隶属于挽马组（Traction Group, TG），对应从事挽运作业的役用马；44匹隶属于竞技组（Sport Group, SG），对应参与障碍跳跃赛事的马术马，所有受试马匹均取自圣保罗州皮拉松通加地区。本次检测涵盖全血细胞计数与血浆纤维蛋白原定量。结果显示，挽马组的红细胞计数与血细胞比容水平更低；相较于竞技组，挽马组的白细胞象（leukogram）中白细胞水平更高。研究表明，挽马的血液学指标均值低于障碍马术马，且上述指标均低于该物种的正常生理参考范围。