required rate of feed

The results showed that the weight gain, specific growth rate, feed efficiency and protein efficiency ratio of fish fed a tes.

05%的试验组的鱼体增重、特定生长率、饲料效率和蛋白质效率等指标均显著高于其它试验组(P<0。

Weight gain and feed efficiency o.

增重率和饲料效率随着蛋白质水平的增加而上升,50%试验组的鱼体增重显著高于35%、40%和45%试验组(P<0。

This study was conducted to evaluate the effects of different ratios of dietary CP to digestible energy(CP∶DE) on growth performance and feed efficiency of 3 to 5 months Chinese Holstein calves.

试验旨在研究粗蛋白质与消化能之比(CP∶DE)对3~5月龄中国荷斯坦犊牛生长性能及饲料效率的影响。

Studies on the heterosis of dietary efficiency for Antheraea pernyi;

柞蚕饲料效率杂种优势的研究

Using biological assay method, the dietary efficiency of tetraploid mulberry variety E-sang No.

采用生物鉴定的方法,调查分析了四倍体桑品种鄂桑2号在秋季的饲料效率,结果表明,鄂桑2号与对照湖桑32号相比,体重的生产效率高8。