The results were as follow:In test 1, 100 the first hybrid of Romney X Merino ram lambs were divided into 5 groups (20 animals each group) on basis of initial body weight.

 
  • 試驗一:試驗采用120只羅姆尼雜交一代公羔羊作為試驗動(dòng)物,根據體重分為6組,每組20只羊。 除試驗1組以外,其余5組分別飼喂成分依次疊加的添加劑,以研究添加劑不同組分對羔羊體增重的影響。
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