From: Heat stress related dairy cow mortality during heat waves and control periods in rural Southern Ontario from 2010–2012
Exposure period
Control period 1 (Preceding)
Control period 2 (Following)
June 19–21, 2012
May 29–31, 2012
July 10–12, 2012
July 20–22, 2011
June 29–July 1, 2011
Aug 17–19, 2011
July 5–7, 2010
June 14–16, 2010
Aug 2–4, 2010