Table 2.

Descriptive statistics for litter size, survival rate, litter weight, and gestation length traits in American mink

Traits1	Number of records	Mean	SD	Range	CV (%)
TB	3,041	6.69	2.67	1 to 17	39.91
LB	3,046	5.77	2.49	0 to 14	43.15
LW	2,722	5.12	2.50	0 to 14	48.82
SB (%)	2,804	87.94	19.71	0 to 100	22.41
SW (%)	2,481	78.40	24.90	0 to 100	31.76
AWB (g)	2,447	12.09	2.29	5 to 23	18.94
AW3 (g)	2,442	130.20	19.85	56 to 197	15.24
AWW (g)	2,437	371.53	65.61	118 to 586	17.65
GL (d)	2,144	46.60	4.80	39 to 75	10.30

¹TB = total number of kits born; LB = number of kits alive at birth; LW = number of kits alive at weaning; SB = survival rate at birth; SW = survival rate at weaning; AWB = average kit weight per litter at birth; AW3 = average kit weight per litter at week 3; AWW = average kit weight per litter at weaning; GL = gestation length.