Effect of different levels of sesame oil (Sesamum indicum) supplementation to the ration on egg quality traits of Lohmann brown hens

Abstract

The experiment was conducted at the poultry farm of animal resources dept./ College of Agriculture / University of Baghdad by using 64 Lohmann hens, 22 weeks old. Birds were randomly assigned to four treatment groups of 16 hens each. Each treatment group was constituted of two replicates with 8 hens each. Treatment groups were as follow: T1 (Control group), T2 represent the supplementation of seasem oil to the birds diet at the levels of 0.5 % , T3 represent the supplementation of seasem oil to bird ration at the levels of 0.75 % and T4 represent the supplementation of sesame oil to the birds diet at the levels of 1 %. Traits included in this experiment were: shell thickness, shell weight relative, yolk weight relative, yolk height, yolk diameter, yolk index, albumen weight relative, albumen height, haugh unit. Results indicated that the addition of different levels of sesame oil to the laying hens diet resulted in significant improvement in the total means of: shell thickness, shell weight relative, yolk diameter, albumen height, albumen weight relative, haugh unit. In conclusion, feeding laying hens with diets containing seasem oil resulted in clear amelioration in some of egg quality traits produced by these hens. Therefore, seasem oil can be used as one of important nutritive supplements to the laying hens diet for improving some egg quality traits.