Effect of dietary supplementation with Vietnamese coriander (Persicaria odorata) extract on growth performance, carcass characteristics and meat quality of broilers

Abstract

The results indicated that the 600 mg/kg VCE and OTC supplemented groups had significantly greater weight gain and average daily gain than the 0, 200, and 400 mg/kg VCE supplemented groups (P<0.05). The feed conversion ratio significantly improved in the VCE and OTC supplemented groups compared with the control group (P<0.05). There were no significant differences in slaughter weight, carcass percentage, and dressing percentage among the treatment groups. The meat quality in terms of pH values determined at 45 minutes post-mortem was higher in the 600 mg/kg VCE than in other treatment groups (P<0.05). Broilers fed 600 mg/kg VCE had the lowest fat percentage (P<0.05). In addition, supplementation with VCE in the diet significantly decreased the TBARS value of breast meat during the storage time (P<0.05). In conclusion, broilers fed with 600 mg/kg VCE and Oxytetracycline supplemented diets had improved in growth performance and meat quality compared to the control group.