Fig. 1. Relationship between mean daily air temperature and populations of E. coli, total coliforms, and total aerobic heterotrophs (TAH) at 27 and 39°C (n = 23) in pen-floor manure at a beef cattle feedlot, Lethbridge, southern Alberta, Canada.
Fig. 1. Relationship between mean daily air temperature and populations of E. coli, total coliforms, and total aerobic heterotrophs (TAH) at 27 and 39°C (n = 23) in pen-floor manure at a beef cattle feedlot, Lethbridge, southern Alberta, Canada.