TY - JOUR T1 - Investigation of Intestinal Microflora of Young Broilers and Their Growth Response to Feed Supplemented with Roxarsone, Avilamycin and Formycin Gold TT - بررسی جمعیت میکروبی روده و پاسخ رشد جوجه‌های گوشتی جوان به جیره‌های مکمل شده با روکسارسون، آویلامایسین و فورمایسین گلد JF - JCPP JO - JCPP VL - 12 IS - 43 UR - http://jcpp.iut.ac.ir/article-1-861-en.html Y1 - 2008 SP - 545 EP - 553 KW - Avilamycin KW - Roxarson KW - Formycin gold KW - Microbial population KW - Broiler chicks. N2 - ‏ This experiment was conducted to determine the performance and intestinal microflora population of broiler chicks in diets supplemented with Roxarsone, Avilamycin and Formycin gold during starter period. A basal diet was formulated according to NRC (1994) recommendation for starter (0-21 d) period and also supplemented with appropriate amounts of the mentioned growth promoters. Each of the treatment was fed to 5 replicates of 18 Ross 308 male broilers. The birds were raised on pen floor for 21 days. The microflora population in crop and ileum parts was measured on appropriate bacteriological media. Results of experiment indicated that supplementation of Roxarsone and Avilamycin, especially their combination to broiler diets, significantly improved body weigh gain of birds (P M3 ER -