Methods: 4 pairs of littermate swines were allocated randomly to 2 groups ( the control group and the experimental group). 方法:选用同窝小猪4对,分别随机分为实验组和对照组。
10-12 numbers of littermate ( X) commendable get the best economic performance. 经分析得出窝产活仔猪数在10~12头之间可取得最佳经济效益。
In each trial, four groups of four littermate barrows were randomly assigned to one of four treatments in a randomized complete block design involving a 2 x 2 factorial arrangement. 在每个试验中,由4头来源于4窝的阉公猪组成的4组猪按2×2析因安排的完全随机区组设计随机分配到4个处理中。
Using the littermate grouping method, 112 Duroc × Gansu white piglets in 14 litters were randomly divided into 3 groups according to their sex, body weight and the position of the sows 'teats. 采用同窝分组法,将14窝112头杜×甘白哺乳仔猪,按性别、体重,母猪乳头位置随机分为3组。