Table 5.

Summary of phenotype values used in the genome wide analysis studies for the traits ‘feather pecks delivered’ (FPD) and the ‘posterior probability of a hen to belong to the extreme feather pecking subgroup’ (pEFP)

	F2	HS HFP	HS LFP
No. of animals	817	270	221
FPD average	13.91	10.35	1.50
FPD SD	26.19	16.69	1.94
FPD min	0	0	0
FPD max	198.33	115.50	15
pEFP average	0.28	0.31	0.20
pEFP SD	0.45	0.29	0.15
pEFP min	0	0.12	0.11
pEFP max	1	1	1