Fig. 3From: The Wolff–Chaikoff effect ameliorates heat stress in ratsHeart rate (HR) responses of rats drinking 0.5% (v/v) potassium iodide solution (KI) or tap water (controls; CN). a Displays hourly means of HR during the first period (Days 0 to 3) when rats were kept at thermoneutrality (TN; Ta = 23.60 ± 0.05 °C; RH% = 44.70 ± 0.21%); b shows hourly means of HR during acute heat stress (HS; Ta = 33.22 ± 0.25 °C; RH% = 31.62 ± 1.03%, on Day 4, for 4 h—09:00 to 13:00 h); while c shows the HR means during the last TN phase (Days 5–9). Horizontal bars and/or asterisks represent treatment by time interaction (P < 0.05)Back to article page