【摘要】 本研究以相同日龄、相同条件养殖且体重相近的4周龄罗曼鹅为试验材料,测定4种能量蛋白水平日粮对罗曼鹅生产性能、屠宰性能和养分消化率的影响。结果表明:(1)日粮代谢能水平对8周龄罗曼鹅的体重、平均日增重和料重比影响显著,日粮粗蛋白水平及能量蛋白的互作效应则对其影响不显著;(2)日粮粗蛋白水平对罗曼鹅的粗蛋白与能量表观利用率影响不显著,日粮能量水平则对其粗蛋白与能量的表观利用率影响极显著,能量蛋白互作效应对测定指标影响不显著;(3)各组试验鹅屠宰性能无显著差异,能量蛋白的互作效应对腹脂率影响显著,对其他指标影响不显著。综上所述,日粮能量水平显著或极显著影响5—8周龄罗曼鹅的生长性能、养分利用率和屠宰性能,日粮粗蛋白水平对上述指标影响不显著。更多还原

【Abstract】 In order to study the effects of dietary energy and protein levels on the growth performance,slaughter performance and nutrient digestibility of Roman goose,4-week-old Roman geese, the same age and raised in the same condition, were randomly divided into 4 groups, fed with A, B, C and D diets according to the energy and protein levels. The weight, feed consumption, slaughter performance, crude protein and energy digestibility were tested during the experiment. The results showed that the effect of dietary metabolic energy levels on body weight, average daily gain and feed weight ratio were significant, while the protein levels and the interaction between crude protein and energy were not significant. The energy levels had extremely significant effects on the utilization of crude protein and energy while the protein levels and the interaction had no significantly different. With the increasing of crude protein and energy supply, the nutrient digestibility decreased. There was no significant difference in slaughter performance. Except for the abdominal fat percentage,the interaction between energy and protein had no significant effect on slaughter performance. Conclusion : Dietary energy levels significantly or extremely significantly affected the growth performance,slaughter performance and nutrient utilization of 5—8 weeks old goose,but the levels of crude protein were not significant.更多还原