Abstract: Four hundred and eighty 1-day-old Arbor Acres chicks were randomly assigned to 5 treatment groups consisting of 8 replicates of 12 birds to study the effects of wall-breaking technology of green tea on meat quality and the residual of heavy metal of broiler. The birds were fed with basal diet supplemented with 0 (control group), 100、200、400 and 800 mg/kg wall-breaking green tea (0、10、20、40、80 mg/kg tea polyphenols). Result showed: (1) The supplement of wall-breaking technology of green tea in diet increased the pH value of breast, decreased dripping loss content of breast(P>0.05), the MDA content of breast decreased by 5.88%、5.88%、0.59%、11.76%(P>0.05), respectively. The vitamin E content of breast increased by 63.01%、0.34%、95.54%、3.08%, the vitamin E content of liver increased by 3.37%、55.03%、44.53% at 20、40、80 mg/kg treatments(P>0.05). (2) The broilers fed with wall-breaking green tea reduced the residual of lead and cadmium in liver of broilers, but all treatments had no significant effect on lead and cadmium content of broiler breast.

Key words: wall-breaking treatment, green tea, broiler, meat quality, heavy metal