This study carried out on turkey bird ((Broad Breasted Bronze) at the research farm that belongs to Faculty of Veterinary Medicine, Zagazig University . four experiments were designed to investigate the effect of egg storage, stocking density, light intensity and feed restriction on the behaviour and performance of turkey. during the period of January (2014) till the end march ( 2015). I- First experiment Effect of turkey egg storage on hatchability and chick quality. In this experiment 150 turkey eggs were divided into 5 groups according to periods of storage "0, 4, 7, 10, 14 days" at 16-18 ° c and 55% of relative humidity 'R.H.'. Eggs were weighted individually at 1st day and at the day of incubation to determine the weight loss during egg storage. Eggs were incubated in egg incubator, as the incubation period in turkey eggs 28 days. , after that the poults were collected, counted and weighted. The remain eggs were collected for estimating the hatchability % and Fertility % . After hatching, chicks were weighted weekly with calculating feed intake for five weeks, as parameters of performance of poults. II- Second experiment Effect of stocking density on behaviour and performance of turkey poults. Studying the effect of different stocking density (5, 7 and 9 birds /m 2) on behaviour and performance of turkey birds III- Third experiment Behavioural and performance response of turkey in relation to light intensity. In this experiment three different light intensities were used (5, 25 and 50 lx) of light intensity were assigned to 3 rooms with 12 h of constant day length. Light was provided by incandescent bulbs. The effect of different light intensities on the bird behaviour and performance was studied IV- Fourth experiment performance response of turkey poults in relation to different feeding restriction regime. Twenty poults divided into four groups, first group fed ad libtium, second group fed 80% of the amount of the first group, third group fed 65% of the amount of the first group and fourth group fed 50 % of the amount of the first group . the poults were restricted for 2 months. Studying the effect of different feed restriction regim on performance of turkey birds.