TY - JOUR T1 - SThe Effect of Using Excess Lysine on the Performance and Slaughter Characteristics of Broiler Chickens AU - , Sayed Majid Hosseini AU - , Sayed Mostafa Akbary AU - , Naser Maheri-Sis AU - , Afshar Mirzaei-Aghsaghali JO - Research Journal of Biological Sciences VL - 4 IS - 2 SP - 143 EP - 147 PY - 2009 DA - 2001/08/19 SN - 1815-8846 DO - rjbsci.2009.143.147 UR - https://makhillpublications.co/view-article.php?doi=rjbsci.2009.143.147 KW - Broiler KW -lysine KW -feed intake KW -weight gain KW -abdominal fat AB - The study was conducted to investigate the effect of excess lysine on performance, viscera weight and abdominal fat in broilers during starter (0-3 weeks) and growing (4-6 weeks) periods. Two hundred and forty days old broiler chicks were reared using completely randomized design with four treatments groups (T1 = 0%, T2 = 0.2%, T3 = 0.4%, T4 = 0.6% excess lysine ) having three replicates of 20 birds in each group for 6 weeks. Results showed that the treatments groups there had no significant differences on feed intake at the rearing period. Weight gain and feed conversion ratio was better (p<0.05) in treatment groups than T1 (control group). There were significant differences in percentage of abdominal fat weight and offal weight between treatments (p<0.05) in total period. Overall, we can suggest that T3 (0.4% excess lysine) had better performance and carcass yield than other treatments. ER -