Valores hematológicos, proteínas plasmáticas totais e fibrinogênio do cavalo crioulo - suas variações em relação ao sexo, idade e manejo *

Criollo horse breeding has shown a significant improvement in the last years, but there is still a lack of information about this breed. Because of what was exposed, this study had the aim to determine the Criollo variations on hemogram, plasma proteins, and fibrinogen, due to sex, age, activity and pregnancy status. To perform this, such hematological parameters were evaluated in 142 Crollo horses, grouped into four categories: G1 (n=26) – animals under one year-old (4 to 9 months); G2 (n=39) – animals in field, above two years-old (2 to 15 years-old); G3 (n=31) – animals above two years-old (2 to 15 years-old), submitted to diary exercises; G4 (n=46) – pregnant mares. We verified differences among groups and sexes. Differences about group were for PCV, hemoglobin, MCV, MCHC, WBC, segmented, basophils, eosinophils, monocytes, lymphocytes, fibrinogen, and plasma proteins. About sex, they were for MVC, and segmented. Comparison between studied parameters with other horse breeds and populations observed in literature showed that most values are not similar and they must not be used as pattern to this breed.