Circadian and postprandial variation in plasma citrulline concentration in healthy dogs.

Objective: To evaluate circadian and postprandial variations in plasma citrulline concentration in healthy dogs.

Animals: 8 healthy Beagles.

Procedures: Blood samples were collected from dogs after 12 hours of food withholding (0 hours; 8:00 am) and then every 2 hours for 12 hours (until 8:00 pm) and again at 24 hours (8:00 am the next day).