188 Effects of dietary supplementation of L-histidine and beta-alanine on growth performance, breast muscle carnosine content and carnosine-related enzyme mRNA expression in broiler chicks.

The current study was performed to investigate effects of dietary addition of L-histidine and β-alanine on growth performance, breast carnosine content and carnosine-related enzyme mRNA expression in broiler chicks. A total of 640 1-day-old male broiler chicks were assigned into 8 treatments with factorial arrangement containing 4 level of L-histidine supplementation (0, 650, 1300 or 1950 mg/kg) and 2 levels of β-alanine (0 or 1200 mg/kg). Each...