Table 2 Development of embryos to offspring after transfer to oviducts of females with pseudopregnancy induced by artificial stimulation with a sonic vibration.

From: Simple induction of pseudopregnancy by artificial stimulation using a sonic vibration in rats

Pseudopregnant

Status of embryos

No. of females

No. of embryos transferred

No. (%) of embryos implanted

No. (%) of offspring

With vasectomised males

Fresh, 2-cell

4

80

58 (73)a

53 (66)c

Frozen, 2-cell

3

66

37 (56)

21 (32)d

Artificial stimulation

Fresh, 2-cell

4

80

45 (56)b

40 (50)c

Frozen, 2-cell

3

55

25 (46)b

13(24)d

Fresh, pronuclear

4

80

53 (66)a

48 (60)c

  1. Significant differences at P < 0.05: a vs. b; c vs. d.