不同草粉添加比例对颗粒饲料加工质量的影响  

Effects of grass meal addition proportion on pelleted feed processing quality

作　　者：李佳丽[1] 郭亚文[1] 杨通[1] 程秀花[1] 陆玉洁 杨宏波[1] 

机构地区：[1]扬州大学动物科学与技术学院,江苏扬州225009

出　　处：《饲料工业》2015年第7期11-14,共4页Feed Industry

基　　金：扬州大学2014年大学生科创基金资助项目[x2014597];江苏高校优势学科建设工程资助项目

摘　　要：文章旨在研究不同草粉添加比例对颗粒饲料的硬度、容重、含粉率和粉化率的影响。以苜蓿和小黑麦草为粗饲料来源,分别设70:30,65:35和60:40三个精粗比水平,调质温度为(45±2)℃,采用孔径φ=5 mm,压缩比为1:6的环模制粒机压制颗粒,冷却后对指标进行测定。结果表明:随着草粉添加比例的增加,颗粒饲料的硬度、容重、粉化率和含粉率均降低,且3个精粗比水平压制的颗粒料的硬度、容重和粉化率均差异显著(P<0.05)。草粉添加比例对颗粒饲料加工质量有显著影响(P<0.05),生产中应根据草粉用量调整制粒工艺参数,以提高饲料产品的质量。This paper aimed to study the effectsof grass meal addition proportion on the pelletedfeed hardness, bulk density and powder rate. Al-falfa meal and ryegrass were as the sources ofroughage. Three forage ratio were set for 70：30、65：35 and 60：40 respectively, The condition-ing temperature was（45±2） ℃. The bore diameter was 5 mm and the compression ratio was 1：6 for the pelleter die. The quality indexes were mea-sured after the pelleted feed was cooled. The results show that the pelleted feed hardness, bulk densityand powder rate were decreasing when grass meal addition proportion was increasing. And a signifi-cant difference was founded for three forage ratio（P〈0.05）. Grass meal addition proportion has signifi-cant effect on hardness,bulk density and powder rate（P〈0.05）. In order to improve the quality, the pel-leting parameters should be adjusted according to the proportion of grass meal.

关 键 词：草粉 颗粒饲料 硬度 容重 粉化率 

分 类 号：S816.9[农业科学—饲料科学]