Study on chemical composition and limiting Factors of sorghum and it's Nutritive value in Male Japanese Quails Nutrition

In this research chemical composition and limiting compounds of sorghum and ifs nutritive value on nutrition of Japanese quails yvere studied in Shabestar Research Station. The experimental design was completely randomized design with three replication and five treatments. The treatments were fed with 5 different levels of sorghum and corn grain as folloyv : 1) 0% sorghum + 40% corn grain. 2) 10% sorghum +30% corn grain. 3) 20% sorghum + 20% corn grain. 4) 30% sorghum 10% corn grain. 5) +0% sorghum 0°0 corn grain. six hundred quail chickens were selected for the experiment vvith 40 chickens in each treatment. The experimental period was 57 days. After -J. weeks quail chickens were sexed. male and female chickens were bred in separate cages. During breeding period. the li vc weight and feed intake were measured weekly. The data \\vere analyzed for t"vo sexes together and separately after sexing. Duncan test was used for comparing the means of treatmen1s. The data analysis indicated that when two sexes were together there \\vere significant di fferences between treatments for feed intake in 2nd, 4th and 5th \\veek. There \\vere no signi ficant ditlerences between treatments for gain in all weeks. The ditlerence between treatments was significant with respect to FCR in first and 8th weeks (P0.05). When two sexes were separated there were significant ditlerences between treatments with respect to the feed intake in 6th week in male quails and in 5th.6th and 7th weeks in female quails (P0.05). There were significant differences between treatments for gain in 6th. 7th and 8th \\veeks in males and in 8th Y\\leek in females (P0.05). The differences between treatments were significant for FCR in 5th and 6th weeks in male quails (P0.05). There were no significant differences between treatments with respect to FCR in all weeks in female quails. Considering the significant effects of treatments on feed intake. their gain in some weeks and non significant effects on feed conversion in the most weeks. In quail diets replacing 100 percentage of corn grain with sorghom grain can be recommonded. Key words: Quail. Sorghum. Nutrition and Inhibitors