A Study On Wheat Middling’s Usage On Layer’s Performances

Two trials were conducted to determination of chemical composition and nutritive value of grade 1 wheat middlings wastes and its suitable levels in layer diets were investigated.Experiment 1 evaluated the chemical composition, and energy and protein content. The experiment 2 was conducted by 240 hyline w36 layers from 24 to 40 weeks of age. Four rations were used as a four treatments includes (0, 7.5,15,22.5%) of wheat middlings in layer diets. Four replicates with 15 birds were arranged in each.All of diets were Isoenergetic and isonitrogenous.. Experiment statistical was in complete random design (CRD), data analysed by SAS programme and means were examined by Duncan multiple test.The metabolizable energy and protein content were 3220 kcal/ kg and 14.2% respectively. No significant differences were found in body weight (BW), feed conversion ratio(FCR) and and egg production percentage (P%) between different levels of wheat middlings in diets (p>0.05).In egg composition including egg weight, egg mass, albumen%, yolk%, shell%, dirty eggs% ,no significant were found (p>0.05).There were significant variables in cost of 1kg of egg production. The treatments fed with wheat middlings have had less cost than control treatment (p<0.05).However, it would suggested that 22.5% of wheat middlings in layer ration could leads to decrease the ration price and egg production cost and approach more benefits for poultry industry