求翻译：对尿及粪中GA排泄量测定后，可推断得出伍用芍药后血中GA浓度增高可能是由于某种因素使粪便中排出量降低，而在体内停留时间延长所致[32]。是什么意思？

After on the determination of GA excretion in urine and feces, can be inferred that after Peony NG GA elevated concentrations in the blood may be due to some factors that faecal excretion in lower and stays in the body caused by prolonged [32].