FIG 2.

Taxonomic profiles of the bulk tank milk microbiota at relative abundances greater than 0.01%. Samples were taken during 3 different sampling months—April, August, and November—from 4 different sampling locations (designated A to D). Samples are classified in 3 different groups of cleaning methods, with samples from farms where chlorine agents are used for cleaning bulk tanks only (BTCF) and from farms which exclusively use chlorine (C) or exclusively use chlorine-free agents (CF) in their cleaning routines.