Serum Nerve Growth Factor Levels as a Predictor of Bull Candidate Semen Quality of Madura Cattle

Table 3

Level significance of correlation coefficient (r) among variables (NGF levels, testosterone levels, sperm motility, sperm viability, and sperm concentration).

Parameters	NGF levels	Testosterone levels	Sperm concentration	Sperm viability
Testosterone levels	0.016
Sperm concentration	0.041	0.014
Sperm viability	0.026	0.007	0.492
Sperm motility	0.015	0.076	0.557	0.00002