一、操作时避免亲鱼受伤。首先，要选合适网目，网目太稀易使亲鱼鳍条受伤，轻则难以恢复，重则造成亲鱼死亡。其次，选择成熟穿鱼，以一次选推为宜，不宜多次拉网选鱼，以免造成外伤再次拉网、运自、选鱼、打针等操作要稳、准、轻。二、注射催产剂要注意用量，避免高剂量。根 First, the operation to avoid brood fish injuries. First of all, to select the appropriate mesh, the mesh is too easy to make the progenitor ray injured, ranging from hard to recover, but then cause the death of broodstock. Second, the choice of mature fish, to choose a push appropriate, should not pull the net several times to choose fish, so as to avoid traumatic pull network again, transport from the election of fish, injection and other operations to be stable, accurate and light. Second, injection of oxytocin should pay attention to dosage, to avoid high doses. root