passages.id: split_4_test_203_passage
passages.type: progene_text
passages.text: Five groups of turkeys were fed diets containing vitamin D3 at 68.9 micrograms / kg feed ( control ) or 25-OH-D3 at concentrations of 49.5 ( 0.5x ) , 99 ( 1x ) , 495 ( 5x ) or 990 ( 10x ) micrograms 25-OH-D3 / kg feed .