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在投喂种鱼和成鱼的饵料中按比例配些稀土,不仅能提高饲料的利用率,而且能促进鱼的生长,增强其抗病力,起到防病治病作用,减少鱼的死亡,提高经济效益。
In the feeding of fish and adult fish feed proportionally with some rare earth, not only can improve feed utilization, but also to promote fish growth, enhance its disease resistance, play a role in disease prevention and treatment to reduce fish deaths, Improve economic efficiency.