采用双因子试验设计，以是否添加苜蓿和不同型号制粒设备2个因素进行试验分组，研究了添加苜蓿和不同制粒设备对颗粒饲料加工质量的影响。结果表明，添加10%苜蓿显著提高了颗粒饲料的硬度、密度和长度(P < 0.05)，降低了粉化率、淀粉含量和淀粉糊化度(P < 0.05)。不同型号制粒设备对颗粒饲料的质量指标影响不显著(P > 0.05)。添加苜蓿和制粒设备的交互作用对颗粒饲料的质量指标影响均不显著(P > 0.05)。综上所述，添加10%的苜蓿可提高颗粒饲料产品的紧密程度、成型率和耐久性，但会降低颗粒的熟化程度。在制粒工艺参数相同的条件下，不同型号制粒设备对颗粒饲料品质无显著影响。

In this study，two-factor experimental design，whether to add alfalfa and different types of pelleting equipment into the experimental groups，was adopted to research on the influencing of adding alfalfa and different pelleting equipment on the processing quality of pellet feed. The results showed that adding 10% alfalfa significantly increased the hardness，density and length of pellet diet(P < 0.05)，and decreased the pulverization rate，starch content and starch gelatinization degree(P < 0.05). The pelleting equipment in different workshops had no significant effect on the quality index of pellet feed(P > 0.05). The interaction between alfalfa and granulating equipment had no significant effect on the quality indexes of pellet feed(P > 0.05). In conclusion， adding 10% alfalfa can improve the compactness，molding rate and durability of pellet feed，but reduce the curing degree of pellet. Under the same pelleting process parameters，different pelleting equipment had no significant effect on the quality of pellet feed.

S816.8

国家自然科学基金(31660670)。