Dr. R. S. JoshiParmar Yashkumar S.2022-05-122022-05-122020https://krishikosh.egranth.ac.in/handle/1/5810184647To study the effect of dietary supplementation of different level of L-Threonine with reduced crude protein level on performance of commercial broilers this experiment was carried out on two hundred and twenty four (224) straight run day-old commercial broiler chicks of a single hatch. The Chicks were randomly distributed to seven treatments, consisting of 32 chicks in each treatment. Each treatment consisted of four replicates with eight chicks per replicate. The experiment was conducted for a period of six weeks. The eight treatments were: T1 diet (Basal Diet + L-Threonine as per NRC requirement). T2 diet with 0.5% CP Reduction than basal diet with addition of 10% L-Threonine, T3 diet with 1.0% CP Reduction than basal diet with addition of 10% L-Threonine, T4 diet with 1.5% CP Reduction than basal diet with addition of 10% L-Threonine T5 diet with 0.5% CP Reduction than basal diet with addition of 15% L-Threonine, T6 diet with 1.0% CP Reduction than basal diet with addition of 15% L-Threonine and T7 diet with 1.5% CP Reduction than basal diet with addition of 15% L-EnglishThesis