Effect of Adding Different Levels from Melatonin in Some Characteristics Semen of Broiler Breeder Male Ross308

     The aim of the present study was to evaluate the effect of adding different levels of melatonin in some of semen Characteristics and antioxidant status in male broiler breeder Ross308, from16/11/2017 to 30/1/2018.Atotal of 25 bird of Ross 308 broiler breeder males ,30 weeks' old were used in this study. The birds were randomly distributed into five group with five replicates each. Each treatment group constituted of 5 birds (1bird each replicate). the broiler breeder males administrated orally with capsules contain melatonin. Treatment groups were as following: T1: Birds fed the basal diet without any addition (control),T2: Birds fed diet supplemented with 15mg/kg of diet,T3: Birds fed diet supplemented with 30 mg/kg of diet,T4: Birds fed diet supplemented with 40 mg/kg of diet and T5: Birds fed diet supplemented with 60 mg/kg of diet. The result of the study revealed a significant decrease in the ejaculated volume, sperm's mass and individual motility and sperm concentration, With a significant increase in dead and abnormal sperm ratio. However, administration with melatonin at (60) mg/kg diet resulted in significant increase (p<0.05) in glucose and total protein concentration of seminal plasma. Also adding melatonin with (15) mg/kg diet had significant improved in the antioxidant status.