Genotype-by-environment interaction in Holstein heifer fertility traits using single-step genomic reaction norm models

Table 5 The number of common animals among the top 50 sires between 2 levels of environmental gradients (EGs)

EG^a	Trait^b	Scenario^c	1 vs. 99%^d	5 vs. 95%	10 vs. 90%	25 vs. 75%
Prop-EG	AFC	S1	18	20	21	28
	AFC	S2	13	14	17	28
	IFL	S1	18	20	21	29
	IFL	S2	12	14	17	27
	CR	S1	0	0	1	7
	CR	S2	1	1	3	11
mTHI-EG	AFC	S1	5	8	15	25
	AFC	S2	3	4	9	24
	IFL	S1	3	5	6	22
	IFL	S2	0	0	2	22
	CR	S1	0	0	0	3
	CR	S2	0	0	0	3

^a prop-EG the number of days that exceeding the threshold temperature humidity index in the period, mTHI-EG minimum temperature humidity index for each day of the period
^b AFC Age at first calving, IFL Interval from the first to last service, CR Conception rate of first service
^c S1 Reference period, S2 periods selected based on the Akaike’s information criterion
^d the number of overlapping animals in the top sires in the 1 and 99%, 5 and 95%, 10 and 90%, and 25 and 75% quantiles of EGs

ISSN: 1471-2164