Some Nutritional factors affecting egg quality in laying hens

The egg quality proplem is one of major neede ofthe poultry industry today • One of the main factor whichaffect this proplem is the nutrition of the hen.This work was made to describe the egg quality of somebreed~ which are widely used in Egypt for egg production.Eighty flocks were used and fed different rationewhich differ in chemical composition.These flocks were classified according to the breed andage into ( High Sex ,Leghorn , Golden Comet and Ls sa Brown)Twenty eggs f rorne ach group were collected for chemicaland physical e xanu.na.t Lon ( quality me aeu remen t s ).Sample from difft~rl’!nt ration taken for chemical ana.Lye La,1- Egg weight :-------------A- The egg weight of the breeds used were increasedby age •B- The egg weight of High Sex and Golden Comet increasedas the protein content of the ration increased, whilethe protein content of the ration of Leghorn notLnr l.uenc ed the egg weighto