Pakistan Journal of Nutrition1680-51941994-7984Asian Network for Scientific Information10.3923/pjn.2009.896.899Al-KassiA. GalibAqeel MohssenM. 6200986This study was conducted to compare the effects of single and synergistic organic acids (formic and propionic acids) on broiler performance. Three hundred one day-old mixed sexes broiler (Arbor-Acres) were divided into five groups of 60 birds each and randomly assigned to five treatment diets. A control group is considered where no added acids. Group 2 and group 3 are formed with 0.1 % formic acid and 0.2% propionic acid respectively. The forth group is formed with 0.3% organic acids (formic and propionic acids). Group 5 is formed by the addition of 0.3% biotronic acid. The results indicated that group 2, 3, 4 and 5 showed significantly higher (p<0.05) in average live weight, average daily gain, average daily feed consumption and mortality rate compared with the control group. Nevertheless at the same time treatment 4 showed significant decrease in the feed conversion ratio compared with other treatments.]]>Al-Kassie, G.A.M. and R. Abd-Al-Aljaleel,20072007pp: 102115AOAC,199613th Edn.,Cave, N.A.G.,198463131134Luckstadt, C., N. Senkoylu, H. Akyurek and A. Aima,2004279193Dibner, J.J. and P. Buttin,200211453463Kirchgessner, E.U., M. Zum and B. Einfulu,199458268277Freitage, M., H.U. Hensche, H.S. Sienbeck and B. Reichelt,1999pp: 49-57pp: 49-57Gauthier, R.,20052005Izat, A.L., M. Colberg, M.H. Adams, M.A. Reiber and P.W. Waldroup,1989Salmonella on commercial broilers.]]>52670673Izat, A.L., N.M. Tidwell, R.A. Thomas, M.A. Reiber, M.H. Adams, M. Colberg and P.W. Waldroup,199069818826Kirchgessner, M. and F.X. Roth,19823259264Luck, E. and M. Jager,19972nd Edn.,Miller, B.F.,19871987pp: 199-209pp: 199-209Mroz, Z., A.W. Jongbloed, K.H. Partanen, K. Verman, P.A. Kemme and J. Kogut,20007826222632Mujdat, A.N.K.,199923451455Nuria, C.R., M. Engberg and B.B. Jensen,20042004Omogbenigun, F.O., C.M. Nyachti and B.A. Solminski,20038118061813Partanen, K.H. and Z. Mroz,199912117145SAS,2002Release 618,Steel, R.G.D. and J.N. Torrie,19802nd Edn.,Thompson, J.L. and M. Hinton,1997Salmonellas in the crop.]]>385965Vogt, H., S. Mathes and S. der Harnisch,198145221232