Morphometric evaluation of variables measurement chickens for replacement of egg-laying hens

The experiment was carried out in a poultry field in Kermanshah province in 2. However، our target study was to measure variables and having topic corporal development، as well as the uniformity in bird’s replacement in our fields. The experiment lasted five weeks. For this study، we provided two locations، one in closed environments under field conditions and other was open and free environment conditions. For each group we selected 500 chicks which kept and fed them. In this study we measured and evaluated these variables: The live weight of chickens (there is a slight tendency to the weight differences between groups formed، and it is demonstrated by the average of the data)، The length of the tarsus (the discrepancy of the variation in tarsus length is determined by the variation in body weight ofchickens)، The distance of the keel to the pubis and the measuring between of two pubic bones (2. 1% of the variation of the distance from the keel to the pubis and 1. 37% of the variation in width between pubis، is determined by the variation of the independent variable (live weight)، in chicken). The conditions of inside and outside environment did not affect to the measurements of the groups. The results were processed by statistical Statgraphics plus 5. 0.