Effect of organic acids blend supplementation to the ration on some productive and physiological traits of broilers

Abstract

          The research was conducted to investigate the effect of supplementation of  organic acids blend to the ration on some productive  and physiological traits of broiler . A total number of 300 one day old chicks( Ross 308) were used ,those chicks were  randomly distributed in to 5 treatment and each treatment involved 3 equal replications. organic acids were added to the  starter and finisher  ration during the 2^nd week of age, the first treatment fed on ordinary ration without the addition  (control treatment ) mean while  organic acids were supplemental as 0.5, 1.0, 1.5 and 2.0% to the second , third, fourth and fifth treatmants respectively .  results illustrated a highly significant (p <0.05) surpassing of mean body weights in the 4^th treatment during the 4^th  week of age with  a significant  improvement (p<0.05) of mortality rate in the 5^th  treatment, in addition the results indicated highly significant (p <0.01) improvement  of Packed Cell Volume in the 4^th and 5^th treatments as well as a highly significant(p <0.01) improvement of  heterophil  lymphocyte ratio in the 3^rd ,4^th and 5^th  treatments.