EFFECT OF ADDING DIFFERENT LEVELS OF OPTIFEED® , VêO® PREMIUM AND OLEOBIOTEC® TO THE DIETS AS APPETITE STIMULANTS IN THE PRODUCTION AND PHYSIOLOGICAL PERFORMANCE OF MALE BROILER UNDER HEAT STRESS CONDITIONS

Abstract

Abstract The present study was conducted to investigate the effect of adding various levels of Optifeed® , VêO® premium and Oleobiotec® to the diets as appetitestimulant on the production and physiological performance of broiler males under heat stress conditions. The experiment was done for 42 days for the period from 30 of August 2018 to 11 of October 2018at the Poultry Research Station of the Livestock Research Department / Agricultural Research Department / Ministry of Agriculture (Baghdad - Abu Ghraib). In this study, 270 -one day broiler male (Ross 308) were reared with mean body weight of 37 g/chick, distributed randomly on 18 pens with dimensions of 2 x 3 m(length x width). The experimental treatments involved six treatments with three replicates for each treatment (per replicate 15 chicks). The treatments were included T1: basal diet as a control with no additions, T2: basal diet + 500 g/ton of Optifeed® , T3:basal diet + 250 g/ton of VêO® premium , T4: basal diet + 250 g/ton of Oleobiotec® , T5: basal diet + 250 g of Optifeed® + 125 g of VêO®premium + 125 g of oleobiotec® /ton of feed, T6: basal diet + 500 gOptifeed® + 250 g VêO® premium + 250 g Oleobiotec® g/ton of feed. The obtained results showed that the supplemented treatments significantly (p  0.05) increased the performance characteristics during the period from 22 to 42 dayswhich consist of weight gain, relative growth rate, feed consumption and feed conversion ratio compared with the control treatment that achieved the lowest rate of production performance. Additionally, there were no significant differences between the experimental parameters and the control treatment in the blood cells and biochemistry parameters of the blood plasma ofbroiler male meat during the measured periods.