Análise de parâmetros sanguíneos de equinos da raça crioula em fase de desenvolvimento

Abstract

Horse breeding conditions can lead to a lot of metabolic and pathological alterations. The most evident of which can be observed in the environmental adaptation and growth phases. Despite this, however, there is a lack of information regarding interpretation parameters in young horses of the Crioulo breed and understand their physiological parameters. This being the case, the base data of these animals are treated empirically, most of the time, and, differently from other breeds, information about metabolism and physiology has not been scientifically clarified. This study was carried out with the purpose of measuring serum hematocrit values, total plasmatic protein, fibrinogen, creatine Kinase, aspartase aminotransferase and lactate. The idea was to establish the physiological oscilations within different groups taking into consideration age and sex. The groups studied were animals from the Crioulo breed from birth to 2,5 years. 85 horses, colts and fillies, were used and these were distributed in seven experimental groups according to age stratification. Group1: animals up to 15 days old (n=70); group 2: animals from 15 to 30 days (n=67); group 3 from 30 to 90 days old (n=75); group 4 from 90 to 180 days (n=64); group 5 from 180 to 270 days (n=59); group 6 from 270 to 540 days (n=39) and group 7 from 540 to 720 (n=17). The results were analised taking age and sex into consideration. Higher values were observed in G1, G2 and G3 for the analysis of hematocrit and in the colts of G7. When PPT values were looked at G3, G4, G6, and G7 showed a significant increase. Fibrinogen values differed statically among G2, G3, G4 and G6 when compared to G1 which showed the highest value. The CK enzyme presented the highest value in G5 and AST in G7. Meanwhile G1 was responsible for the lowest value of CK being statiscally different from G5, G6 and G7, and AST showed balanced values from the age of thirty days until 2,5 years and showed a significant increase in males when comparing sexes in G3. The lactate analysis presented the highest value in G3 and different only from G1 and G7. Evaluation of the results led us to conclude that hematological and biochemical values undergo changes at different ages in colts and fillies of the Crioula breed. Therefore, these parameters should be taken into consideration when tests are being analised.