Background

Mean number of plugs per session ± SEM

Mean number of 1-cell embryos ± SEM

Mean number of 2-cells embryos ± SEM

Mean fertilization rates (%) ± SEM

C57BL/6J

4.672 ± 0.2826

22.72 ± 1.383

13.23 ± 0.9228

59.96 ± 2.331

B6*129

5.000 ± 0.5222

25.16 ± 3.351

16.86 ± 2.716

66.76 ± 5.689

FVB/NJ

7.462 ± 0.8444

19.88 ± 3.853

10.02 ± 1.867

58.88 ± 8.099