Administration of branched-chain amino acids to standardbred horses in training

Eight adult trotter horses (three to six years) were randomly divided in two groups of four animals (two male and two female per group)، نويسنده , , named EXP and CTR. Horses were adapted to a fixed dietary regime before undergoing a performance test (TEST 1) on a circular track. The performance tests consisted of about 15 minutes of warm-up (five laps، نويسنده , , 280–300 meter/minute) and four consecutive heats of 1000 meters at incremental speeds of 7.1، نويسنده , , 8.0، نويسنده , , 9.1 and 10.5 m/sec. Blood was sampled before the test، نويسنده , , at the end of each heat and 45 minutes after the end of the fourth heat. During the following four weeks، نويسنده , , the EXP group، نويسنده , , but not the CTR group، نويسنده , , was supplemented with a mixture BCAA (9.0g L-leucine، نويسنده , , 4.5g isoleucine and 4.5g L-valine) one hour before training. At the end of the 4-week period all horses were retested (TEST 2). Plasma lactate، نويسنده , , glucose، نويسنده , , allantoin، نويسنده , , BCAA did not affect plasma lactate، نويسنده , , glucose، نويسنده , , allantoin and pyruvate concentration.، نويسنده ,

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