Table 4. Least square mean (LSM) and standard error (SE) for semen quality traits of different PLCz haplotype combinations in Chinese Holstein bulls.

Genotypes combination/Samples*	Ejaculate volume (ml)**	Initial sperm Motility (%)**	Sperm density (×108/ml)**	Frozen/thawed sperm motility (%)	Deformity rate (%)
H1H1/49	7.35±0.30a	81.52±1.86	11.33±0.57	41.31±0.94	14.51±0.63
H1H2/47	8.14±0.59A	84.51±3.58	13.35±1.11a	40.78±1.80	15.45±0.99
H1H4/51	7.56±0.34A	80.33±2.06	11.96±0.64	40.80±1.04	14.72±0.73
H2H2/33	7.75±0.52a	84.46±3.16a	12.68±0.65a	41.48±1.59	13.17±1.08
H2H4/39	7.50±0.25A	78.57±1.52	11.94±0.47	40.72±0.76	14.02±0.44
H4H4/41	7.31±0.35a	83.20±2.12b	11.92±0.97	41.47±1.09	13.85±0.70
H1H3/81	6.79±0.17	78.08±1.05a	11.60±0.32	40.04±0.53	14.61±0.34
H3H4/83	6.47±0.19bB	77.18±1.19a	10.80±0.37b	41.33±0.60	14.46±0.43

^*H1 = GT; H2 = GC; H3 = AT; H4 = AC.

^**Means in the same column with different lowercase superscripts (a and b) are different at P<0.05; means in the same column with different uppercase superscripts (A and B) are different at P<0.01.