Genetic Parameters of Semen Traits and Their Correlations with Conformation Traits in Chinese Holstein Bulls

Table 4

Genetic correlations (upper diagonal) and phenotypic correlations (lower diagonal) of semen and conformation traits.

Trait	SVPE	SMPE	SCPE	PAS	TNS	TNMS	PTM	BW	WH	BL	CG	AC	TC	PW	HH	SC
SVPE		—	—	—	0.79	0.76	—	0.94	0.88	0.92	0.85	0.89	0.86	0.79	0.87	0.97
SMPE	—		—	—	—	—	0.70	−0.52	−0.49	−0.16	−0.48	−0.53	−0.55	−0.49	−0.58	−0.55
SCPE	—	—		−0.25	0.76	0.80	−0.09	0.75	0.87	0.92	0.69	0.72	0.50	0.75	0.85	0.98
PAS	—	—	−0.05		—	—	−0.34	−0.83	−0.81	−0.99	−0.77	−0.69	−1.00	−0.54	−0.72	−0.60
TNS	0.69	—	0.72	—		—	0.02	0.93	0.93	—	0.89	0.89	0.83	0.83	0.92	1.00
TNMS	0.64	—	0.72	—	—		0.15	0.89	0.91	—	0.83	—	0.79	0.79	0.90	0.99
PTM	—	0.35	−0.16	−0.14	−0.20	−0.15		−0.60	−0.35	−0.41	−0.49	−0.68	0.10	−0.35	−0.56	−0.50
BW	0.27	−0.03	0.16	−0.08	0.32	0.26	−0.02		0.58	0.82	0.88	0.84	0.82	0.40	—	0.56
WH	0.40	−0.03	0.23	−0.10	0.44	0.39	−0.01	0.67		0.78	0.72	0.47	—	0.42	—	—
BL	0.24	0.00	0.18	−0.06	—	—	0.00	0.71	0.67		0.72	0.59	—	0.21	0.81	—
CG	0.26	−0.01	0.15	−0.06	0.30	0.25	−0.01	0.83	0.71	0.63		0.80	—	0.31	—	—
AC	0.32	−0.06	0.15	−0.08	0.34	—	−0.05	0.79	0.55	0.55	0.75		—	0.39	0.61	0.46
TC	0.26	−0.03	0.10	−0.08	0.28	0.22	0.02	0.67	—	—	—	—		0.18	—	—
PW	0.21	−0.03	0.07	−0.01	0.21	0.17	−0.01	0.39	0.38	0.31	0.37	0.34	0.31		0.47	0.24
HH	0.41	−0.06	0.22	−0.10	0.44	0.37	−0.04	—	—	0.65	—	0.58	—	0.39		—
SC	0.35	−0.04	0.35	−0.02	0.48	0.42	−0.07	0.48	—	—	—	0.45	—	0.20	—

SVPE = semen volume per ejaculation; SMPE = sperm motility per ejaculation; SCPE = semen concentration per ejaculation; PAS = percentage of abnormal sperms; TNS = total number of sperms; TNMS = total number of motile sperms; PTM = postthaw motility; BW = body weight; WH = withers height; BL = body length; CG = chest girth; AC = abdominal circumference; TC = tube circumference; PW = pin width; HH = hip height; SC = scrotal circumference; “—” = no result.