اثر دما بر صفات كمي و كيفي تخم مرغ

The Effect of Temperature Upon Quantitative and Qualitative Traits of Hen Ggs

To investigate the ellect or environmental temperature upon quantitative and qualitative traits or hen eggs, an experiment vvas conducted on ]632 fresh collected eggs. The hen eggs were randomized collectcd in a manner of 50 eggs each 10 day s. Traits such as: egg weight, yolk weight. \\ hire weigh: and shell weight, white and yolk height. shell thickness and resistance, yolk index were estimated. I he results have shown that the environmental temperature had a significant cllcct on all the studied traits so that the highest egg, yolk, white and shell weight, yolk height. shell thickness and resistance, form and yolk index were obtained in the temperature less than 25 ,<. (1ʹ<0.0]), While the \\ hire height was the only trait which was decreased in the environmental temperature less than 25 ʹ"~ (r<0.05).