Table 4. Effect of culture medium renewal and optimal exosome supplementation on following in vivo development of bovine SCNT embryos after embryo transfer.
Groups | No.embryos transferred | No. of pregnancies (%) | Calves born (%) | ||
---|---|---|---|---|---|
Day40 | Day90 | Day120 | |||
Renewal | 51 | 21 (41.2) a | 6 (11.8) a | 5 (9.8) a | 3 (5.9) a |
Nonrenewal | 69 | 39 (56.5) b | 18 (26.1) b | 14 (20.3) b | 12 (17.4) b |
Supplementary | 65 | 37 (56.9) b | 14 (21.5) b | 12 (18.5) b | 11 (16.9) b |
a, b: different superscripts within same column indicate significant difference (P<0.05).