Valuation of condition athletics preparation of standardbred trotting on straight race course through determination of lactate, haematocrit and some physiological parameters [Valutazione dello stato di preparazione atletica del cavallo trottatore su pista dritta mediante determinazione del lattato, del valore ematocrito e di alcuni parametri fisiologici]

On ten three and four year old healthy trotting standardbred, we obtained, at rest, in effort, and thirty minutes after exercise on straight race course, the following parameters: bloody lactate, haematocrit, plasmatic protein, heart and breath rate and rectal temperature were obtained at rest, in effort, and thirty minutes after exercise on straight race course from ten healty trotter horses of three and four years old. After effort the concentration of lactate was significantly higher (p<0.05) in three years old than in four years old horses, on which haematocrit was significantly lower (p<0.05). Consequently, monitoring of lactate and haematocrit is a very good sign of the level of horse's athletic condition. Moreover, the re-establishment of physiological parameters, thirty minutes after exercise, allows to verify the good training level.