生猪粥状饲料的黏附及静态沉淀特性  

Adhesion and Static Sedimentation Characteristics of Porridge Feed

作　　者：钱怀源 刘浩宇 黄天赐 李卓[1] 谢方平[1,2] 邬备 QIAN Huaiyuan;LIU Haoyu;HUANG Tianci;LI Zhuo;XIE Fangping;WU Bei(College of Mechanical and Electrical Engineering,Hunan Agricultural University,Changsha 410128,China;Hunan Key Laboratory of Intelligent Agricultural Machinery and Equipment,Changsha 410128,China)

机构地区：[1]湖南农业大学机电工程学院,湖南长沙410128 [2]智能农机装备湖南省重点实验室,湖南长沙410128

出　　处：《云南农业大学学报(自然科学版)》2025年第1期93-101,共9页Journal of Yunnan Agricultural University:Natural Science

基　　金：长沙市自然科学基金项目(kq2208071);湖南省教育厅科研项目(23A0181);湖南省自然科学基金项目(2024JJ5194);湖南省研究生科研创新项目(CX20230723)。

摘　　要：【目的】测定生猪粥状饲料(以下简称“粥料”)在不同温度、不同含水率条件下的黏附特性和静态沉淀特性。【方法】以3种品牌的仔猪和母猪饲料共6种颗粒饲料为原料,计算其含水率后加入定量的水和饲料搅拌均匀配制成粥料,在不同温度和含水率条件下,利用相关试验装置,进行粥料容重、黏度、黏附力、黏附质量和静态沉淀特性测定试验。【结果】室温条件下,当含水率从70%增加到90%时,粥料的平均容重从1.084 g/cm^(3)降至0.983 g/cm^(3),黏附力从2.66 N降至0.08 N,平均黏附质量从85.90 g降至1.50 g。当含水率从75%增加到90%时,粥料平均黏度从33.04 Pa·s降至0.46 Pa·s。对于含水率为80%的粥料,当温度从60℃降至20℃时,粥料平均黏度从11.08 Pa·s增加到16.13 Pa·s。随着含水率的升高,各品牌粥料的静态沉淀特性变化趋势较为接近,均出现较为明显的料水分层现象,但悬浮层高度存在差异。【结论】粥料黏附特性和静态沉淀特性参数的测定,可为饲料生产加工、贮藏运输及饲喂环节配套机械的关键结构设计提供参考。[Purpose]To determine the adhesion and static sedimentation characteristics of pig porridge feed under different temperatures and moisture content conditions.[Method]Using six kinds of pellet feeds of three brands of piglet and sow feeds as raw materials,the moisture content was calculated,and a certain amount of water were added and mixed evenly to prepare porridge feed.Under different temperatures and moisture contents,the bulk density,viscosity,adhesion force,adhesion weight and static sedimentation characteristics of porridge feed were measured by using relevant experimental devices.[Results]Under room temperature,when the moisture content increased from 70%to 90%,the average bulk density of porridge feed decreased from 1.084 g/cm^(3) to 0.983 g/cm^(3),the adhesion force decreased from 2.66 N to 0.08 N,and the average adhesion weight decreased from 85.90 g to 1.50 g.When the moisture content increased from 75%to 90%,the average viscosity de creased from 33.04 Pa·s to 0.46 Pa·s.For porridge feed with 80%moisture content,when the temperature decreased from 60℃to 20℃,the average viscosity increased from 11.08 Pa·s to 16.13 Pa·s.With the increase of moisture content,the static sedimentation characteristics of porridge feed of various brands showed a similar trend,an obvious stratification phenomenon occurred,and there were differences in the height of the suspended layer.[Conclusion]The determination of adhesion characteristics and static sedimentation characteristics parameters of the porridge feed can provide a reference for the key structure design of the supporting machinery in feed production,processing,storage,transportation,and feeding.

关 键 词：粥状饲料 容重 黏附特性 黏附力 沉淀特性 

分 类 号：S816.8[农业科学—饲料科学]