@article{MAKHILLRJBS20094210823, title = {SThe Effect of Using Excess Lysine on the Performance and Slaughter Characteristics of Broiler Chickens}, journal = {Research Journal of Biological Sciences}, volume = {4}, number = {2}, pages = {143-147}, year = {2009}, issn = {1815-8846}, doi = {rjbsci.2009.143.147}, url = {https://makhillpublications.co/view-article.php?issn=1815-8846&doi=rjbsci.2009.143.147}, author = {Sayed Majid Hosseini,Sayed Mostafa Akbary,Naser Maheri-Sis and}, keywords = {Broiler,lysine,feed intake,weight gain,abdominal fat}, abstract = {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.} }