Table 2.

Serum melatonin levels in both groups of chickens at 8 weeks after neonatal pinealectomy

Groups	n	Serum melatonin (pg/ml)
Group X	15	31.3±0.6
Group Y	15	18.7±2.4a

Values are expressed as means ± SEM

^a Significant different from controls (P < 0.001)