Fenilpropanoidi nella dieta per suini in accrescimento : effetti sull'attività antiradicalica globale del sangue e su alcuni parametri ematici

The aim of the present work was to evaluate the effect of natural antioxidant supplementation in pigs from weaning to 97 kg LW on performance and on some physiological indicators of welfare. Forty piglets of 7 kg LW were allotted to two dietary treatments: control diet and supplemented diet (5 mg/kg of a natural extracts titered in phenylpropanoid glycosides (PPG) expressed as verbascoside). Pigs were weighted at d 0 d 15, d 60, d 90 and d 150 after weaning. Blood samples from 12 piglets/treatment were analysed for serum haptoglobin, cortisol, aspartate amino transferase (AST) and birilubin concentrations and blood antiradicalic activity by mean KRL test. No differences were found for performance. Total antiradicalic activity tended to improve in treated group. Haptoglobin and AST showed time effect (P<0.001)