Elucidation of the genetic determination of clutch traits in Chinese local chickens of the Laiwu Black breed

BMC Genomics

Table 2 SNP-based heritability estimates for clutch traits

Trait	V_g	V_e	V_p	h²
AFE	74.09 ± 17.6	23.64 ± 15.42	97.73 ± 7.14	0.76 ± 0.16
BWFE	6117.72 ± 2636.70	11754.48 ± 2720.40	17872.2 ± 1278.28	0.34 ± 0.15
LR	54.31 ± 21.62	76.05 ± 21.93	130.37 ± 9.95	0.42 ± 0.16
LC	56.95 ± 16.77	38.98 ± 15.58	95.93 ± 6.94	0.59 ± 0.16
FWLCS	3.37 ± 2.86	18.27 ± 3.26	21.64 ± 1.56	0.16 ± 0.13
LWLCE	1.33 ± 2.36	20.3 ± 2.94	21.64 ± 1.56	0.06 ± 0.11
NUMC	34.79 ± 13.38	61.16 ± 13.74	95.95 ± 6.88	0.36 ± 0.14
LNDWEL	50.25 ± 32.7	216.28 ± 37.11	266.53 ± 19.15	0.19 ± 0.12

Abbreviations: AFE Age at first egg, BWFE Body weight at first egg, LR Laying rate, LC Longest clutch until 52 week of age, FWLCS The first week when the longest clutch starts, LWLCE The last week when the longest clutch ends, NUMC Number of clutches, LNDWEL The longest day with no egg laid until 52 week of age. Vg: the variance of additive genetic effects. Ve: the variance of residuals. Vp: the variance of phenotype, Ve = Vg + Ve. h2: heritability

ISSN: 1471-2164