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Table 1 Intracytoplasmic sperm injection with cryopreserved epididymal sperm from NPYq-2 males

From: Deficiency in mouse Y chromosome long arm gene complement is associated with sperm DNA damage

Experiment Number of oocytes injected Number of oocytes survived (%)a Number of oocytes activated (%)b, c Number of oocytes cleaved (%)b Number of two-cell embryos transferred (number of surrogates) Number of pregnant surrogates Number of fetuses
1 64 34 (53) 26 (76) 17 (50) 17 (1) 0 0
2 88 65 (74) 57 (72) 26 (40) 26 (2) 0 0
3 59 44 (75) 41 (93) 25 (57) 25 (2) 1 1
4 76 47 (62) 38 (81) 33 (70) 33 (2) 0 0
1-4 287 190 (66) 162 (85) 101 (53) 101 (7) 1 1
  1. Percentage was calculated from: aoocytes injected; boocytes survived. cOocytes were chemically activated with SrCl2; the oocytes were considered activated when they extruded second polar body and had two well-developed pronuclei.