Looking at $100 million in new investment, companies such as Idexx, Dechra, ImmuCell and Vets First Choice say the area’s growing industry cluster creates a magnet for workers and could get the region’s economy purring. ImmuCell Inc. President and CEO Michael Brigham would like to see the Portland area’s animal health sector develop the sort of industry clout that exists in Kansas City, which recently tried to lure his company’s new factory away from Maine with a raft of economic incentives. Read more.