Figure 3: Temporal patterns of circulating growth hormone (GH) in samples collected at 15-min intervals in 48-h fasted (F - Panels A and C) and normally fed (NF - Panels B and D) Polish Longwool ewes during the long day and short day seasons. The treatments were as follows: 1) saline (control), 2) ghrelin (GHRL; 2.5 μg/kg b.w.), 3) m-CPP (serotonin 5-HT2B/2C receptor agonist; 2.5 mg/kg b.w.) or 4) GHRL with m-CPP.