Figure 1.
Figure 1.

Average circulating concentrations of ghrelin in wethers that could eat offered 275 g of feed (FED; n = 5), wethers that were muzzled and could not eat offered 275 g of feed (SHAM; n = 4), and wethers that were not offered feed (CONT; n = 5). Arrows indicate the time FED and SHAM wethers were offered feed. *SHAM mean plasma ghrelin concentrations differed from CONT (P < 0.05). +SHAM mean plasma ghrelin concentrations differed from FED (P < 0.05). #CONT mean plasma ghrelin concentrations differed from FED (P < 0.05). Additionally, plasma concentrations of ghrelin in the SHAM treatment were greater at time 15 than at time −30 and in the FED treatment were greater at time −30 than at times 30, 45, 60, 90, 105, and 120 and at time −15 than at time 15 through 120.

 


Figure 2.
Figure 2.

The area under the curve (AUC) of ghrelin concentrations before and after the presentation of feed demonstrated a group effect with a tendency toward significance in which circulating concentrations of ghrelin of SHAM wethers were higher than those of FED wethers postfeeding (P = 0.0866). FED = wethers that could eat offered 275 g of feed; SHAM = wethers that were muzzled and could not eat offered 275 g of feed; CONT = wethers that were not offered feed.