Table 1.

Time schedule and sampling during each study period.

Day 1	Day 2	Day 3	Day 4	Day 5
10:00 AM 1st basal SC sample	10:00 AM 2nd basal SC sample + 1st basal FCM sample	10:00 AM 3rd basal SC sample + 2nd basal FCM sample	08:00 AM Gastroscopy and gastroscopy SC sample + 30 min after the end of each horse’s gastroscopy SC sample 10:00 AM 3rd basal FCM sample	08:00 AM (24 h after gastroscopy of each horse) gastroscopy FCM sample

AM: ante meridian; FCM: fecal cortisol metabolites; SC: salivary cortisol.