Periódicos Brasileiros em Medicina Veterinária e Zootecnia

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Haematological response associated with repeted show jumping competition in horse

Assenza, AnnaCongiu, FulvioGiannetto, ClaudiaFazio, FrancescoPiccione, Giuseppe

Background: Several studies have demonstrated the beneficial effect of exercise; even in human that in horse, but exercise could also represent a physical stress that challenging body homeostasis. Exercise stress pushes the body to find a dynamic equilibrium through adaptive changes to ensure proper management of stress caused by maximal exercise. These changes affect various composition of body fluids, in particular changes in blood composition including an increase in Red Blood Cells (RBC), Hematocrit (Hct) and Hemoglobin (Hgb) values and a change in Platelets (Plt) count. The objective of the present study was to evaluate the effect of repeated jumping exercise on haematological parameters in horse.Material, Methods & Results: For this purpose we evaluated the modifications occurring in cell blood count (CBC) in horses during two international three stars *** show jumping competition performed in two consecutive weekend. After routine clinical examination, twelve well trained Italian Saddle horses were enrolled for this study. For every subject, Red blood cell (RBC), haematocrit (HCT), haemoglobin (HGB) and platelets (PLT) were assessed. Blood samples were collected: in the morning after the meal (7:30-8:00 AM), before the beginning of the competition (R1 ) and within 10 min after competition ending (C1 S1 , C1 S2 ) and on the day after competition (R2 ). The same procedure was followed on the second weekend (C2 S1 , C2 S2 , R3 ). Whole blood samples were placed on ice pending analysis that were performed within 2 h after collection and immediately taken to the laboratory for analysis. The obtained data were analyzed with Stats package of R: R Core Team (2013). One-way repeated measures analysis of variance (ANOVA) showed a significant effect on sampling time (P < 0.05) concerning every studied parameter. In particular a significant increase of RBC in C1 S1, C1 S2 , C2 S1 and C2 S2 versus R1 , R2 and R3.[...](AU)

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