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Table 2.

Development of oocytes injected with spermatogenic cells derived from PGCs

In vitro development (%)
Donor age (dpc)Number of reconstituted eggsOne cellTwo cellFour cellNumber of eggs transferredImplantation sites (%)Number of offspring (%)
8.5* 186 78 (41.9) 105 (56.5) NA 105 47 (25.2) 20 (10.8) 
12.5 182 8 (4.4) 25 (13.7) 130 (71.4) 130 88 (48.3) 29 (15.9) 
In vitro development (%)
Donor age (dpc)Number of reconstituted eggsOne cellTwo cellFour cellNumber of eggs transferredImplantation sites (%)Number of offspring (%)
8.5* 186 78 (41.9) 105 (56.5) NA 105 47 (25.2) 20 (10.8) 
12.5 182 8 (4.4) 25 (13.7) 130 (71.4) 130 88 (48.3) 29 (15.9) 

Combined results using elongated spermatids and spermatozoa.

*

Combined results from two different recipient testes.

NA, not applicable because cells were transferred at the two-cell stage.

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