The present study was conducted to evaluate the effects of different concentrations of metabolizable energy (ME), Lys, and Met + Cys on the growth performance of Japanese quail breeder, hatching eggs, and production performance of their offsprings by Taguchi method. Total of 630 Japanese quails (6-wk-old) were randomly distributed between 9 experimental treatments with 5 replicates (14 quails in each cage) per treatment for 9 wk. The dietary treatments, including 3 different ME concentrations (2,700, 2,850, and 3,000 kcal/kg), 3 different concentrations of Lys (0.88, 1.00, and 1.12%), and 3 different concentrations of Met + Cys (0.65, 0.75, and 0.85%), were used in L9 (33) orthogonal array layout. Egg production, feed intake, egg weight, and feed conversion ratio were recorded and calculated biweekly. At the end of the wk 13, 14, and 15, of age of quail breeder, hatchability, and the average weight of offspring were recorded. First group of hatched chicks were raised under a standard condition with the common diet for 12 d. Results showed that quails fed the diet containing 3,000 kcal ME/kg, 1.12% Lys, and 0.85% Met + Cys had the greatest feed intake, egg production, egg weight, hatchability, and the lowest feed conversion ratio throughout the study. For the offspring, the best growth rate was also achieved by feeding the diet containing 3,000 kcal ME/kg, 1.12% Lys, and 0.85% Met + Cys to japanese quail breeders. The results of this study showed that the Taguchi method could be used successfully toestimate ME, Lys, and Met + Cys requirements of quail breeder, and their offspring.

本研究旨在通过田口法评估不同浓度的代谢能（ME），Lys和Met + Cys对日本鹌鹑饲养员，孵化卵的生长性能及其后代生产性能的影响。总共630只日本鹌鹑（6周龄）随机分布在9个实验处理之间，每个处理9个星期重复5次重复（每个笼子中有14个鹌鹑）。饮食治疗包括3种不同的ME浓度（2,700、2,850和3,000 kcal / kg），3种不同的Lys浓度（0.88、1.00和1.12％）和3种不同的Met + Cys浓度（0.65、0.75和0.89％）用于L9（33）正交阵列布局。记录产蛋量，采食量，蛋重和饲料转化率，每两周计算一次。在第13、14和15周结束时 记录鹌鹑饲养员的年龄，孵化率和后代的平均体重。第一组孵化的雏鸡在标准条件下以普通饮食饲养12天。结果表明，在整个研究过程中，饲喂含有3,000 kcal ME / kg，1.12％的Lys和0.85％Met + Cys的日粮的鹌鹑具有最高的采食量，产蛋量，蛋重，孵化率和最低的饲料转化率。对于后代，通过向日本鹌鹑饲养者饲喂3,000 kcal ME / kg，1.12％Lys和0.85％Met + Cys的日粮也可达到最佳生长速度。这项研究的结果表明，Taguchi方法可以成功地估算鹌鹑育种者及其后代的ME，Lys和Met + Cys需求。第一组孵化的雏鸡在标准条件下以普通饮食饲养12天。结果表明，在整个研究过程中，饲喂含有3,000 kcal ME / kg，1.12％的Lys和0.85％Met + Cys的日粮的鹌鹑具有最高的采食量，产蛋量，蛋重，孵化率和最低的饲料转化率。对于后代，通过向日本鹌鹑饲养者饲喂3,000 kcal ME / kg，1.12％Lys和0.85％Met + Cys的日粮也可达到最佳生长速度。这项研究的结果表明，Taguchi方法可以成功地估算鹌鹑育种者及其后代的ME，Lys和Met + Cys需求。第一组孵化的雏鸡在标准条件下以普通饮食饲养12天。结果表明，在整个研究过程中，饲喂含有3,000 kcal ME / kg，1.12％的Lys和0.85％Met + Cys的日粮的鹌鹑具有最高的采食量，产蛋量，蛋重，孵化率和最低的饲料转化率。对于后代，通过向日本鹌鹑饲养者饲喂3,000 kcal ME / kg，1.12％Lys和0.85％Met + Cys的日粮也可达到最佳生长速度。这项研究的结果表明，Taguchi方法可以成功地估算鹌鹑育种者及其后代的ME，Lys和Met + Cys需求。在整个研究过程中，85％的Met + Cys具有最大的采食量，产蛋量，蛋重，孵化率和最低的饲料转化率。对于后代，通过向日本鹌鹑饲养者饲喂3,000 kcal ME / kg，1.12％Lys和0.85％Met + Cys的日粮也可达到最佳生长速度。这项研究的结果表明，Taguchi方法可以成功地估算鹌鹑育种者及其后代的ME，Lys和Met + Cys需求。在整个研究过程中，85％的Met + Cys具有最大的采食量，产蛋量，蛋重，孵化率和最低的饲料转化率。对于后代，通过向日本鹌鹑饲养者饲喂3,000 kcal ME / kg，1.12％Lys和0.85％Met + Cys的日粮也可达到最佳生长速度。这项研究的结果表明，Taguchi方法可以成功地估算鹌鹑育种者及其后代的ME，Lys和Met + Cys需求。