Table 3. CNP addition effect on sperms live percentage of ram sperms during three days of cooling preservation.

Group	Value (%)	p-value
Control-0h	82.63 ± 0.89 A	0.029
CNP-0h	77.5 ± 1.1 AB
Control-24h	81.265 ± 0.95 A
CNP-24h	68.6 ± 1.33 B
Control-48h	60.78 ± 0.98 BC
CNP-48h	53.2 ± 0.86 C
Control-72h	49.215 ± 0.93 C
CNP-72h	36.4 ± 1.21 D

Different vertical large letters refer to significant variation at p < 0.05.