Effects of wall-breaking technology of green tea on lipid metabolism of broilers

Four hundred and eighty 1-day-old Arbor Acres chicks were randomly assigned to 5 treatments consisting of 8 replicates of 12 birds to study effects of wall-breaking technology of green tea on lipid metabolism.The birds were fed basal diet supplemented with 0(control group),100,200,400 and 800 mg·kg~(-1) wall-breaking technology of green tea (0,10,20,40,80 mg·kg~(-1) tea polyphenols).The result showed:①The LDL-C in serum decreased,the content of TG,total TC concentration in serum as well as HDL-C level were not significantly influenced by wall-breaking green tea.②The addition of green tea at 400 mg·kg~(-1) decreased intermuscular fat(P0.05),while this decreasing also occurred at treatment of 800 mg·kg~(-1) and sebum thickness,but the low-dose tea power had no effect,muscle fat rate slightly decreased,but abdominal fat rate and liver fat rate were not significantly influenced.③The activity of LPL and HP in serum was not significantly influenced,but the activity of LPL increased,the activity of HP decreased slightly.