The canisters fell off just before 6 a.m. on Tuesday as the bus traveled around the curve of a ramp to Interstate 65. Metro Nashville police and fire officials were called to the scene because of reports of a foul odor coming from the leaking canisters.
A local television station reported the four canisters of sperm and dry ice were en route from Ohio to a Texas breeding facility.
Officials shut down the ramp until they determined what was in the containers, but the scene was cleared around 9 a.m.
