Describe the excretory system of the genus Nereis briefly.

简述沙蚕属系统。

Products: lobworm, blach shell, dried fish etc.

沙蚕、禾贝、鱼干。

Nereis is a high-protein,low-fat and high-quality Penaeus vannamei feed through nutrition assessment.

通过营养价,表明沙蚕对南美白对虾来种高蛋白、低脂肪优质饲料。