cecum samples
BALB/c mice were randomly assigned into one of the following treatment groups: 1) saline alone; 2) low dosage 1.5 g/kg of spirulina; and 3) high dosage 3.0 g/kg of spirulina. Before and during the treatment, every animal was raised separately in a metabolic cage and their fresh stools were collected at the following designated days: 0, 7, 14 and 21 days and the cecal contents were obtained at the end-point of treatments on the 25th day.