Effect of dietary lysine on performance and immunity parameters of male and female Japanese quails

The present study was conducted to investigate the effects of dietary lysine (Lys) and sex on growing quail performance and immunity parameters. The six dietary Lys: 10, 11.5, 13.0, 14.5, 16.0 and 17.5 g/kg were provided. This experiment was carried out in a completely randomized design arrangement from 3 to 24 days. Each treatment was consisted of 5 floor pens (50 quail chicks). Body weight (BW) and body weight gain (BWG) increased significantly (P 0.05) for any traits. It concluded that during the 3 to 24 days of age optimum BW, BWG, FCR and immunity status could be obtained with 14.5 g/kg Lys, so these levels is more than NRC 1994 recommendation.