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Table 1 Intact blastocyst culture on MEF in different media

From: Laser-assisted blastocyst dissection and subsequent cultivation of embryonic stem cells in a serum/cell free culture system: applications and preliminary results in a murine model

Embryonic day (d)

Plating day (D)

No. of (%)

DMEM + 10%NCS, 10% FBS

Ko-M + 15% Ko-S

d4

D0

Blastocysts (I) plated

63

63

d5–6

D1–2

Hatched blastocysts

53 (84.1)a

42 (66.7)b

d6–7

D2–3

Attached on MEF

51 (80.9)

42 (66.7)

d8–9

D4–5

ICM isolation

18 (28.6)

14 (22.2)

d14–16

D10–12

ESC primary colonies

1 (1.6)c

11 (17.5)d

  1. FBS = fetal bovine serum, NCS = newborn calf serum, Ko-M = Knockoutâ„¢ DMEM, Ko-S = Knockoutâ„¢ serum replacement
  2. a,bχ2, 2 × 2, 1 df, Effect of ESC medium on hatching rate, p < 0.05
  3. c,dχ2, 2 × 2, 1 df, Effect of ESC medium on ESC derivation rate, p < 0.05