不同精粗饲料比例对压缩型TMR颗粒饲料成型品质影响的研究  

Study the effects of different ratios of concentrate androughage on molding quality of compressed TMR pellets

作　　者：葛文霞[1,2] 柳旭伟[1] 梁静[2] 刘艳丰[3] 聂存喜[2] 张文举[2] GE Wenxia;LIU Xuwei;LIANG Jing;LIU Yanfeng;NIE Cunxi;ZHANG Wenju(Department of Animal Science and Technology,Xinjiang Agricultural Vocational College,Changji,Xinjiang 831100,China;College of Animal Science and Technology,Shihezi University,Shihezi,Xinjiang 832003,China;Feed Research Institute,Xinjiang Academy of Animal Science,Urumqi,Xinjiang 830000,China)

机构地区：[1]新疆农业职业技术学院动物科技分院,新疆昌吉831100 [2]石河子大学动物科技学院,新疆石河子832003 [3]新疆畜牧科学院饲料研究所,新疆乌鲁木齐830000

出　　处：《中国饲料》2021年第7期21-27,共7页China Feed

基　　金：新疆维吾尔自治区创新环境(人才、基地)建设专项—自然科学计划(自然科学基金)(2020D01A71);国家重点研发计划项目(2018YFD0502100);新疆农业职业技术学院科研资助项目(XJNZYKJ201801)。

摘　　要：为研究不同精粗饲料比例对压缩型TMR颗粒饲料成型品质的影响,试验设计3个不同水平的精粗饲料比5∶5、4∶6、3∶7,粗饲料选用玉米秸秆和苜蓿干草,两者比例分别为1∶2、1∶1、2∶1,采用双因子多水平试验设计,按照压缩TMR颗粒饲料生产工艺流程生产压缩型TMR颗粒饲料,比较不同水平下,精粗比对压缩型TMR颗粒饲料感官性质、含粉率、粉化率、硬度、容重、密度、长度和直径等物理指标的影响。试验结果表明:随着饲料中精饲料比例的降低,粗饲料比例的增加,压缩型TMR颗粒饲料的感官品质下降,颗粒含粉率和粉化率显著增加(P<0.05),硬度显著降低(P<0.05),容重和密度显著降低(P<0.05),颗粒长度显著增加(P<0.05),对颗粒直径没有显著影响(P>0.05);不同粗饲料组成玉米秸秆与苜蓿干草比对饲料成型品质影响不显著(P>0.05);不同精粗比与粗饲料组成的交互作用对颗粒含容重和密度有显著影响(P<0.05)。The purpose of this paper was to study the effect of different concentrate roughage ratio on the molding quality of compressed TMR pellets.Three different levels of concentrate to roughage ratios(5∶5,4∶6,3∶7)were designed.Corn straw and alfalfa hay were used as roughage,and the ratios were 1∶2,1∶1and 2∶1 respectively.According to the production process of TMR pellet feed,the TMR pellet feed was produced.The effects of different concentrate to roughage ratios on sensory properties,flour content,pulverization rate,hardness,bulk density,density,length and diameter of TMR pellets were compared to evaluate the quality of TMR pellets.The results showed that with the decrease of concentrate proportion and the increase of roughage proportion,the sensory quality of compressed TMR pellet decreased,the powder content and pulverization rate increased significantly(P<0.05),the hardness decreased significantly(P<0.05),the bulk density and density decreased significantly(P<0.05),the particle length increased significantly(P<0.05),but the particle diameter had no significant effect(P>0.05).There was no significant difference in feed quality between corn straw and alfalfa hay ratio(P>0.05);the interaction between different concentrate to forage ratio and the composition of roughage had significant effect on grain bulk density and density(P<0.05).

关 键 词：压缩型TMR颗粒饲料 感官性质 物理指标 

分 类 号：S816.5[农业科学—饲料科学]