The effect of a mixture of anise and rosemary on broiler performance

摘要

This study was conducted to explore the usage a mixture of anise and rosemary (MAR) as a natural growth promoting in broiler nutrition . Different levels of MAR were added to a standard diet , to determine its effect on body weight gain and feed conversion ratio in comparison with a control group. Three hundred day-old chicks (Ross-308) were randomly assigned in to(5) equal groups of( 60) birds each with the (3) replicates . A control group with no added MAR , 0.5% MAR , 0.75% MAR , 1% MAR and 1.25% MAR were added to the groups 2,3,4 and 5 respectively . Results showed that body weight gain is highly significant ( p ≤ 0.05) for the groups 2,3 and 4 as compared with control group , similarly feed conversion ratio was improved in the same groups as compared with control group. These results shows that MAR could be considered as a potential natural growth promoter for poultry