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在鲤鱼饲料中添加适量的硝酸稀土,研究稀土元素对鲤鱼增产效果,经过116d的养殖对比试验得出:鲤鱼饲料中添加适量的硝酸稀土能够促进鲤鱼的生长,平均提高鲤鱼单产14.1%(9.3%～16.8%)(P<0.05),试验组平均效益比对照组平均效益增加8335.6元/hm2,试验组投入产出比(1∶2.11)比对照组(1∶1.44)高0.67。
Carp feed to add the right amount of rare earth nitrate, rare earth elements on the carp yield, after 116d of aquaculture experiments showed that: carp feed to add the appropriate amount of rare earth nitrate can promote the growth of carp, raising carp average yield of 14.1% (9.3% ~ 16.8%) (P <0.05). The average benefit of the experimental group was 8335.6 yuan / hm2 higher than that of the control group. The input-output ratio (1: 2.1 1) in the experimental group was 0.67 higher than that of the control group (1: 1.44)