TABLE 1.
Evaluations of semen quality and testicular phenotypic parameters of XN bull testes at different ages (mean ± SEM).
| Indexes | Prepuberty | Groups a | |
|---|---|---|---|
| Semen quality parameters | prepuberty (n = 23) | Puberty (n = 23) | Postpuberty (n = 23) |
| Semen volume (ml) | 4.96 ± 0.26 b | 6.21 ± 0.23 c | |
| Sperm motility (%) | 0.61 ± 0.02 b | 0.67 ± 0.01 c | |
| Sperm concentration (billion/ml) | 1.06 ± 0.07 | 1.20 ± 0.03 | |
| Physical attributed | TY0 (n = 3) | TY1 (n = 3) | TY2 (n = 3) |
| Weight (g) | 4.84 ± 0.89 b | 168.73 ± 5.04 c | 322.81 ± 12.34 d |
| Length (Cm) | 4.07 ± 0.46 b | 9.97 ± 0.68 c | 13.27 ± 0.44 d |
| Width (Cm) | 1.70 ± 0.15 b | 5.73 ± 0.09 c | 7.23 ± 0.23 d |
a
TY0 = prepuberty; TY1 = puberty; TY2 = postpuberty.
b
The different superscript in the same row show significant differences (p < 0.05).
c
The different superscript in the same row show significant differences (p < 0.05).
d
The different superscript in the same row show significant differences (p < 0.05).