求翻译：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是什么意思？

Inference drawn with 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