In order to understand the progress for maternal Rhizomys breeding performance, select the 0 and1 generation of 300 one day old Rhizomys maternal, each generation were divided into 3 replicates of 100 Rnizomys sinehsis per replicate. The reproduction performance of the 2 generations and the production performance of the offspring were counted. The results showed that after 1 generations of breeding, with production performance than the 0 generation increased, the number of years of fetal and total annual li...