TABLE 3

Embryo somite numbers at GD 9.25

CrossNo. of
 counted embryos
 (no. of litters)Mean litter
 median of
 somite no.
 (±SEM)Somite
 range
C57♀ × C57♂133 (16)21.9 ± 0.33–26
SWV♀ × SWV♂217 (19)19.3 ± 0.4a5–23
C57♀ × F1203 (26)21.3 ± 0.29–26
F1♀ × C57♂370 (35)21.7 ± 0.33–26
  • a Significantly different from other values using two-tailed t-test, P < 0.05.