Effect of Dietary Melissa officinalis and Laurus nobilis on Some Microbial Traits of Broiler

Abstract

Thisstudy was conducted at poultry field of animal production department / facultyof agriculture – university of Anbar, in the alternative site (Abu-Ghraib).This study lasted for 35 days. The experiment aimed to study the addition of Melissa officinalis and Laurus nobilis and their mixture to the diet atlevels of 0, 2, 4 and 6  gm/km  feed on the microbial traits of broiler. Forthis study (240) one day old unsexed broilers (Ross 308) were used with an averageweight of 40 gm. The chicks were distributed on ten treatments with threereplicates per treatment (24 chicks / treatment). The total bacterial count andaerobic bacterial count were counted for chicken faces. The results of thisstudy showed a decrease in the number of total air bacteria and the count ofthe colon bacteria under study by increasing the levels of Laurus nobilis, Melissa officinalis and mixture compared tocontrol treatment. The study also showed the inhibitory effect on the count of colonbacteria and the count of air bacteria as affected by using different levels ofLaurus nobilis compered to Melissaofficinalis and the combinationbetween them.