日粮中柱花草粉含量对马岗鹅生产性能和养分代谢率的影响

Effect of dietary Stylosanthes powder content on the production performance and nutrient metabolic rate of Magang goose

在A、B、C、D 4组马岗鹅日粮中分别添加6.2%、11.3%、16.1%和20.9%的柱花草粉,各组饲料能量和蛋白质含量基本相同,粗纤维含量不同,以探讨马岗鹅日粮中适宜的柱花草粉添加量。试验结果表明,B组日增重高于A、C、D组,与A、D组差异显著;料重比和屠宰性能组间差异不显著;不同草粉含量对干物质、粗蛋白、粗脂肪、钙和磷的代谢率有不同程度的影响,粗纤维代谢率组间差异不显著。

In order to find the appropriate amount of Stylosanthes powder in diet of Magang goose,A,B,C and D group of diets for Magang goose were supplemented with 6.2%,11.3%,16.1% and 20.9% Stylosanthes powder,respectively,of which the levels of total energy and crude protein were same,but the levels of the crude fiber were different.The results showed that the weight gain of group B was highest and had significant difference with group A and D.The ratio of feed to gain and slaughter performances showed no significant differences among groups.The content of Stylosanthes powder had some degree influences on the metabolic rates of dry matter,crude protein,crude fat,calcium and phosphorus,but the metabolic rate of crude fiber showed no significant differences among groups.