Effect of L-Ascorbic Acid-2-Phosphate Magnesium on Chicks Administered a Radical Initiator.
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The present study was conducted to investigate the effects of 2, 2' -azobis (amidinopropane) dihydrochloride (AAPH), a radical initiator, and L-ascorbic acid-2-phosphate magnesium (APM) on growth performance and ascorbic acid concentrations in Single Comb White Leghorn male chicks. Body weight gain, food intake and food efficiency (body weight gain/food intake) of chicks administered with AAPH (5mg/100g body weight/day) for 14 days were significantly decreased compared with control values. However, the supplementation with APM reduced the severity of such adverse effects induced by the administration of AAPH. In chicks administered with AAPH, plasma ascorbic acid was significantly depressed, and the concentrations of plasma and liver thiobarbituric acid reactive substances (TBARS) were significantly increased. The increased TBARS concentrations in plasma and liver were restored by dietary APM supplementation.Based on the results presented, it was suggested that the chicks given AAPH could serve as an model animal of radical injury, and that APM supplementation is effective for inhibition of oxidative stress by peroxyl radical generated from AAPH.
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