TSX falls to eight-day low as US rate hike prospects hit mining shares

By Darshan Kumar R and Fergal SmithCanada's main stock edged down to an eight-day low on Thursday, led by declines for metal mining shares, as the continued sell-off in the global bond market weighed on investor sentiment.The Toronto Stock Exchange's S&P/TSX Composite Index TSX:TSX ended down 44.97…