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¹ Selçuk University, Agriculture Faculty, Department of Animal Science, 42250, Konya, Turkey DOI : 10.34233/jpr.1138469 - The purpose of this study was to investigate the effects of in ovo resveratrol in hatching quail eggs on hatching traits, organ weights and chick performance. A total of 640 hatching quail eggs were used in the study. The eggs were randomly distributed into four groups as non-injected group (PC; Positive control), 0.2 ml saline (NC; Negative control), 0.2 ml solution containing 1 nmol of resveratrol (R1) and 0.2 ml solution containing 4 nmol of resveratrol (R4). In ovo injection was performed on the 14^th day of incubation. Hatchability of set eggs (HSE) and hatchability of fertile eggs (HFE), embryonic mortality (EM), chick hatching time, yolk sac weight (YSW), and chick performance characteristics were investigated. The effects of in ovo resveratrol administration on the HSE were insignificant. HFE decreased significantly with in ovo resveratrol treatment (P<0.05). All injected groups were adversely affected in terms of embryonic deaths (P<0.05). The effect of in ovo resveratrol application on chick hatch weight, and YSW (g, %), chick performance was insignificant. It was observed that in ovo resveratrol treatment had no significant effect on the hatching time, except at 408 h of incubation. As a result, in ovo resveratrol application had a negative effect on hatchability and EM, but did not have affected the hatching time, yolk sac weight and chick performance. Keywords : Resveratrol Hatchability Yolk sac Performance Hatching time