TY - JOUR T1 - The Effect of Supplementing Tea Polyphenols on Yolk Cholesterol and Production Performance of Laying Hens During the Egg-laying Period JO - Brazilian Journal of Poultry Science A1 - Lin, PW A1 - Li, XY A1 - Ma, RY A1 - Daijun, S SN - 1516-635X UL - 10.1590/1806-9061-2021-1565 VL - 24 Y1 - 2022 PB - Brazil ER -