轻泻药：促进排粪的物质。
结论排粪造影是诊断排便困难原因的重要方法，是其它检查方法不可代替的。
Conclusions defecography is an important method to diagnose the causes of constipation and can not be replaced by any other method.
结果表明，饲料显著影响刺参的摄食率、排粪率、食物转化效率和表观消化率，因此影响到刺参的生长和能量分配。
Results showed that the diets significantly affected food ingestion rate, feces production rate, food conversion efficiency and apparent digestive ratio, hence the growth and energy budget.
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