Table 1.

Summary statistics of teat number in two Duroc pig populations

Population	Trait	Na	Mean(±SD)b	Minc	Maxd	C.V./%e	h2(±SE)f
American Duroc	Teat number	3331	10.90 ± 1.16	9	16	10.64	0.19 ± 0.02
Canadian Duroc	Teat number	2025	10.92 ± 1.14	8	16	10.44	0.34 ± 0.03

^aNumber of animals (N) ^b mean (standard deviation) ^c minimum (min) ^d maximum (max) ^e coefficient of variation (C.V.) ^f heritability (standard error) value