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当前位置: 首页 > 文章 > 粉碎粒度对生长猪颗粒饲料加工质量及其生长性能的影响 动物营养学报 2015,27 (7) 2038-2043
Position: Home > Articles > Effects of Particle Size on Pellet Feed Processing Quality and Growth Performance of Growing Pigs Chinese Journal of Animal Nutrition 2015,27 (7) 2038-2043

粉碎粒度对生长猪颗粒饲料加工质量及其生长性能的影响

作  者：
段海涛;秦玉昌;于纪宾;倪海球;李军国
单  位：
中国农业科学院饲料研究所;农业部食物与营养发展研究所
关键词：
颗粒饲料质量;粉碎粒度;生长猪;生长性能
摘  要：
本试验旨在研究不同粉碎粒度对生长猪颗粒饲料加工质量及其生长性能的影响。试验分别选用1.5、2.0、2.5和3.0mm筛片孔径对混合后饲料原料进行粉碎,得到几何平均粒径分别为:595、626、758、856μm的饲料原料,试验饲粮参照配方进行调质制粒。试验选取80头平均体重为(27.5±0.5)kg的"大×长×杜"三元杂交猪,按照体重接近和性别随机置于4个组,每个组5个重复,每个重复4头猪。4组分别饲喂4种粉碎粒度饲粮,试验周期为8周。试验结果表明:随着筛片孔径从1.5mm增大到3.0mm,每吨原料粉碎能耗从7.41kW·h降低到4.36kW·h;1.5mm组淀粉糊化度显著高于2.5和3.0mm组(P<0.05),与2.0 mm组差异不显著(P>0.05);2.0mm组粗蛋白质体外消化率显著高于3.0mm组(P<0.05);1.5 mm组颗粒硬度显著高于其他组(P<0.05);1~4周内,2.0mm组生长猪平均日增重显著高于其他组(P<0.05),料重比显著低于其他组(P<0.05)。本试验结果表明,粉碎机筛片孔径为2.0mm时颗粒饲料质量最好,生长猪的生长性能最佳。
译  名：
Effects of Particle Size on Pellet Feed Processing Quality and Growth Performance of Growing Pigs
作  者：
DUAN Haitao;QIN Yuchang;YU Jibin;NI Haiqiu;LI Junguo;Feed Research Institute,Chinese Academy of Agriculture Sciences;Food and Nutrition Development Institute,Ministry of Agriculture;
关键词：
pellet feed quality;;particle sizes;;growing pigs;;growth performance
摘  要：
This experiment was conducted to study the effects of the different particle size on pellet feed processing quality and growth performance of growing pigs.In this research,four kinds of apertures were used to crush raw material,so as to form 4samples with different particle sizes,which were 595,626,758,856μm,then tempered and pelleted the feed raw material.Eighty ‘Largewhite×Landrance× Duroc'growing pigs with average body weight of(27.5±0.5)g were allocated into four groups balanced for sex and body weight,with 5replicates per group and 4pigs per replicate.Pigs in 4groups were fed four different diets,respectively.The duration of the experiment was 8weeks.The result showed as follows:as the screen aperture increased from 1.5to 3.0 mm,grinding energy consumption of raw material per ton was reduced from 7.41 to 4.36kW·h.Starch gelatinization degree of 1.5 mm group was significantly higher than that of 2.5and 3.0mm group(P<0.05),but with no significant difference with that of 2.0 mm group(P>0.05).The crude protein digestibility in vitro of 2.0 mm group was significantly higher than that of 3.0mm group(P<0.05).Hardness of pellet of 1.5mm group was significantly higher than that of the other groups(P<0.05).During 1to 4weeks,average daily gain(ADG)of growing pigs of 2.0 mm group was significantly higher than that of the other groups(P<0.05),the ratio of feed to gain(F/G)was significantly lower than that of the other groups(P<0.05).In conclusion,when the aperture of grinder is 2.0mm,feed quality and the growth performance of growing pigs are the best.

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