【摘要】 试验旨在探究低豆粕、低蛋白日粮对尼古拉火鸡生长性能的影响。选择1日龄尼古拉火鸡360只，结合体型、性别比例随机分为9组，每组设4个重复，每个重复10只鸡。实验分为0～4周龄以及5～8周龄两个阶段，并使用3×3双因素试验方法，研究常规蛋白质水平日粮（玉米-豆粕型、玉米-低豆粕添加型、糙米-玉米-低豆粕添加型）、蛋白质水平由27%降至25%日粮（玉米-豆粕型、玉米-低豆粕添加型、糙米-玉米-低豆粕添加型）、蛋白质水平由27%降至23%日粮（玉米-豆粕型、玉米-低豆粕添加型、糙米-玉米-低豆粕添加型）对尼古拉火鸡生长性能的影响。结果显示，与常规蛋白质水平、玉米-豆粕型日粮组相比，降低4个百分点蛋白质水平日粮（玉米-豆粕型、玉米-低豆粕添加型、糙米-玉米-低豆粕添加型）火鸡全期增重显著降低（P<0.05），但料重比显著增高（P<0.05），饲料利用率较差。研究表明，尼古拉火鸡日粮的蛋白质水平在0～4周龄阶段由27%降低到25%,5～8周龄阶段由25%降低至23%，火鸡的增重及饲料报酬未受到显著影响，但进一步降低日粮蛋白质水平将会导致火鸡生长性能显著下降。更多还原

【Abstract】 The purpose of the experiment was to investigate the effects of low soybean meal and low protein diet on growth performance of Nicholas turkey. 360 one-day-old Nicholas turkey were randomly divided into nine groups with four replicates in each group and 10 turkeys in each replicate. The experiment was divided into two stages: 0～4 weeks old and 5～8 weeks old. The effects of conventional protein level diets(corn-soybean meal, corn-low soybean meal, brown rice-corn-low soybean meal), diets with protein levels were reduced from 27% to 25%(corn-soybean meal, corn-low soybean meal, brown rice-corn-low soybean meal) and diets with rprotein levels were reduced from 27% to 23%(cornsoybean meal, corn-low soybean meal and brown rice-corn-low soybean meal) on growth performance of Nicholas turkeys were studied by using 3 × 3 two-factor test method. The results showed that the whole-period weight gain of turkeys fed with 4% reduced protein level(corn-soybean meal type, corn-low soybean meal type, brown rice-corn-low soybean meal type) decreased significantly(P<0.05), but the feed-to-weight ratio increased significantly(P<0.05), and the feed utilization rate was poor. The study indicates that the dietary protein level of Nicholas turkey decreased from 27% to 25% at 0～4 weeks old and from 25% to 23% at 5～8 weeks old. The weight gain and feed reward of turkeys were not significantly affected, but further reduction of dietary protein level would lead to significant decline in growth performance of turkeys.更多还原