Table 2.

Effect of ashen mutation on the average litter size

Mouse strain	Average litter size (pups/litter)
C57BL/6J (n = 29)	7.17 ± 2.2
C57BL/6J ashen (n = 7)	3.43 ± 1.9*
C3H/HeSn (n = 25)	5.00 ± 1.69
C3H/HeSn ashen (n = 11)	4.09 ± 1.37

^*P < 0.01