Table 3.

Pearson's correlation coefficient between semen quality traits, sperm kinematic parameters, and fertility rate of Rhode Island Red (above the diagonal) and White Leghorn roosters (below diagonal).

Item	VOL	MOT	CON	VIA	DEF	VCL	BCF	STR	VSL	ALH	LIN	VAP	WOB	FR
VOL	1.00	0.491	0.26	0.29	0.01	0.13	−0.441	−0.12	0.371	0.17	0.29	−0.00	−0.15	0.20
MOT	0.07	1.00	0.562	0.722	−0.004	0.25	−0.29	−0.27	0.622	0.642	0.12	0.401	−0.07	0.572
CON	0.361	0.361	1.00	0.542	0.20	0.18	−0.13	−0.14	0.16	0.24	−0.01	0.33	0.19	0.391
VIA	0.21	0.31	0.05	1.00	0.16	0.20	−0.11	−0.26	0.391	0.662	−0.17	0.391	−0.10	0.431
DEF	−0.08	0.16	−0.20	0.18	1.00	0.20	0.02	0.24	0.10	−0.04	0.18	0.14	0.19	0.01
VCL	0.06	0.611	0.32	0.05	−0.16	1.00	−0.03	−0.19	0.09	0.431	−0.28	0.16	−0.19	0.13
BCF	−0.11	−0.17	−0.14	0.07	0.10	−0.15	1.00	−0.05	−0.31	−0.17	−0.20	−0.15	−0.04	−0.33
STR	0.17	−0.472	0.02	−0.07	−0.06	−0.642	−0.391	1.00	0.18	−0.16	0.381	0.07	0.23	−0.22
VSL	0.31	−0.01	0.30	−0.04	−0.20	0.03	−0.622	0.732	1.00	0.622	0.632	0.421	−0.01	0.361
ALH	0.05	0.582	0.26	−0.02	−0.19	0.822	−0.15	−0.522	0.05	1.00	−0.22	0.562	−0.19	0.431
LIN	−0.13	−0.451	−0.16	−0.35	−0.06	−0.32	−0.15	0.502	0.381	−0.32	1.00	−0.03	0.16	0.01
VAP	0.04	0.472	0.24	0.09	−0.11	0.892	−0.09	−0.562	0.03	0.742	−0.17	1.00	0.711	0.381
WOB	−0.03	−0.19	−0.12	0.14	0.06	−0.04	0.13	0.06	0.01	−0.01	0.17	0.411	1.00	0.08
FR	0.15	0.712	0.391	0.03	−0.20	0.522	−0.26	−0.391	−0.02	0.502	−0.41	0.391	−0.20	1.00

Abbreviations: ALH, amplitude lateral head displacement; BCF, beat cross frequency; CON, sperm concentration; DEF, abnormal sperm percentage; FR, fertility rate; LIN, linearity; MOT, sperm motility; STR, straightness; VAP, average path velocity; VCL, curvilinear velocity; VIA, live sperm percentage; VOL, ejaculate semen volume; VSL, straight line velocity; WOB, wobble.

¹P < 0.05.

²P < 0.001.