高温制粒对猪颗粒饲料质量及饲喂效果的影响  

Effects of High Temperature Granulation on Growth Performance and Nutrient Digestibility of Finishing Pigs

作　　者：梁玉朋 刘泳 张文杰 李文立[1] LIANG Yupeng;LIU Yong;ZHANG Wenjie;LI Wenli(College of Animal Science and Technology,Qingdao Agricultural University,Shandong Qingdao 266109,China;Shandong New Hope Liuhe Group Co.,Ltd.,Shandong Qingdao 266100,China)

机构地区：[1]青岛农业大学动物科技学院,山东青岛266109 [2]山东新希望六和集团有限公司,山东青岛266100

出　　处：《饲料工业》2023年第17期42-46,共5页Feed Industry

摘　　要：试验旨在研究不同调质温度对猪颗粒饲料质量、猪生长性能及养分消化率的影响。设计70、75、80℃和85℃等4个调质温度水平生产猪颗粒饲料,测定不同调质温度下颗粒饲料的含粉率、粉化率和淀粉糊化度;再选取70日龄体重接近的肥育猪60头,随机分为4个处理,分别饲喂70、75、80、85℃调质的颗粒饲料,饲养试验60 d后采用全收粪法进行消化试验。结果表明:各处理间颗粒饲料含粉率、钙磷消化率、平均日采食量均差异不显著(P>0.05);各处理间颗粒饲料粉化率、淀粉糊化度均差异极显著(P<0.01)。80℃和85℃处理的干物质、粗蛋白消化率极显著高于70℃和75℃处理(P<0.01),75℃和80℃处理粗脂肪消化率极显著高于70℃和85℃处理(P<0.01)。70℃和85℃处理的料重比极显著高于80℃处理,且80℃处理平均日增重最大(P<0.01)。说明合适的调质温度可以提高饲料的质量和饲喂效果,最适温度为80℃。The experiment aimed to investigate the effects of different conditioning temperatures on pellet feed quality,growth performance and nutrient digestibility of pigs.Four conditioning temperatures of 70,75,80℃and 85℃were designed to produce pig pellet feed.The powder content,pulverization rate and starch gelatinization degree of pellet feed were measured under different conditioning temperatures.Sixty 70-day-old finishing pigs with similar body weight were randomly divided into four groups.The four groups were fed granule feed conditioned at 70,75,80℃and 85℃,respectively.After 60 days of feeding experiment,digestion test was conducted by total manure collection method.The results showed as follows:There were no significant differences in meal content,calcium and phosphorus digestibility and average daily feed intake among all treatments(P>0.05);the differences of pulverization rate and starch gelatinization degree of pellet feed were extremely significant(P<0.01).The digestibility of dry matter and crude protein treated at 80℃and 85℃was extremely significantly higher than that in 70℃and 75℃groups(P<0.01),and the digestibility of ether extract in 75℃and 80℃groups was significantly higher than that in 70℃and 85℃groups(P<0.01).The ratio of feed to gain at 70℃and 85℃were significantly higher than that at 80℃,and the average daily gain at 80℃was the largest(P<0.01).It is concluded that the optimum conditioning temperature was 80℃,which could improve feed quality and feeding efficiency.

关 键 词：高温制粒 颗粒质量 肥育猪 生长性能 养分消化率 

分 类 号：S816[农业科学—饲料科学]