TABLE 1.

Descriptive discomfort scale assessing tolerance based on physiologic and behavioral changes for 5 pigs administered fluids by proctoclysis.

Score	Description
0	No overt signs of discomfort. Absence of avoidance to interaction with humans from a distance or closer in pen. The pig demonstrates expected lying behavior in lateral and sternal recumbency. Respiratory and heart rates are within reference ranges and similar before and after proctoclysis.
1	Moderate signs of discomfort. Periodic restlessness, agitation, or pacing. Periodic avoidance behavior during interactions with humans from a distance or in pen. Occasional hunched back and abdominal straining. Persistent moderate elevation above reference ranges of respiratory and heart rates during proctoclysis compared to before proctoclysis.
2	Severe signs of discomfort. Persistent restlessness, agitation, or pacing. Persistent avoidance and escape from interactions with humans from a distance or in pen. Persistent hunched back and abdominal straining. Attempts to bite and remove the red rubber tube. Dog sitting and bottom scooting. Constant high respiratory and heart rates during proctoclysis compared to before proctoclysis.