Genome-wide association studies targeting the yield of extraembryonic fluid and production traits in Russian White chickens

Table 3 Basic statistics of recorded chicken performance data

Trait^a	Observations	Min	Max	Mean	SD^b	Heritability ± SE^c
EW, g	146	43	61	50.1	3.4	0.53 ± 0.03
EM, g	146	5	11	9.2	0.9	N/A^d
BW, g	146	1175	2360	1681.4	197.2	0.47 ± 0.01^e
YEF, ml	146	5	15	9.5	1.7	0.17 ± 0.01
REFEW	146	0.1	0.3	0.2	0.03	N/A^d
AFE, days	146	161	186	167.1	4.9	0.36 ± 0.01^e
EL	146	76	194	142.5	20.8	0.21 ± 0.01

^aTraits studied: EW egg weight, EM embryo mass, BW body weight, YEF yield of extraembryonic fluid, REFEW ratio of extraembryonic fluid to egg weight, AFE age at first egg, EL number of eggs
^bSD standard deviation
^cSE standard error
^dN/A data not available
^eRetrieved from data in Niknafs et al. [50]

ISSN: 1471-2164