不同水平膨化玉米对仔猪生长性能、养分消化率的影响  

Effects of different levels of expanded corn on growth performance and nutrient digestibility of fattening pigs

作　　者：黄璐 HUANG Lu(Institute of Grain Crops,Henan Academy of Agricultural Sciences,Zhengzhou,Henan Province 450000,China)

机构地区：[1]河南省农业科学院粮食作物研究所,河南郑州450000

出　　处：《中国饲料》2023年第18期128-131,共4页China Feed

摘　　要：文章旨在研究不同水平膨化玉米对仔猪生长性能、养分消化率的影响,试验将60头初始体重无差异的仔猪作为研究对象,随机分为对照组、试验1组、试验II组,每组5个重复,每个重复4头。对照组仔猪饲喂基础日粮,试验I组以饲料总比例20%的膨化玉米替代日粮中的玉米进行饲喂,试验II组使用总饲料30%的膨化玉米替代日粮中的玉米进行饲喂,其他饲料成分和饲养管理措施不变,试验为期30 d。结果表明:(1)试验I、II组仔猪末重显著高于对照组(P<0.05),试验II组仔猪平均日增重、平均日采食量显著高于对照组(P<0.05),试验II组仔猪料重比显著低于对照组(P<0.05)。(2)试验II组仔猪的干物质消化率显著高于对照组(P<0.05),试验II组仔猪的粗蛋白质、钙和磷消化率显著高于对照组、试验I组(P<0.05)。结论:在基础日粮中以膨化玉米替代玉米可有效提升仔猪的生长性能和养分消化率,在不考虑膨化玉米成本的情况下,饲料总量30%的膨化玉米替代效果最佳。To study the effects of different levels of extruded corn on the growth performance and nutrient digestibility of piglets;Method:A total of 60 piglets with no difference in initial body weight were included as the research subjects in this experiment.They were randomly divided into control group,trial group 1,and trial group II,with 5 replicates in each group and 4 piglets in each replicate.The piglets in the control group were fed with a basic diet.In Experiment I,20%of the total feed proportion of extruded corn was used to replace the corn in the diet for feeding.In Experiment II,30%of the total feed proportion of extruded corn was used to replace the corn in the diet for feeding,while other feed components and feeding management measures remained unchanged.The experiment lasted for 30 days,and the growth performance and nutrient digestibility of the three groups of piglets were compared.The results showed that:(1)The final weight of piglets in Experiment I and Experiment II groups was significantly higher than that in the control group(P<0.05),and the average daily gain and feed intake of piglets in Experiment II group were significantly higher than those in the control group(P<0.05).The feed weight ratio of piglets in Experiment II group was significantly lower than that in the control group(P<0.05).(2)The dry matter digestibility of piglets in Experiment II group was significantly higher than that in the control group(P<0.05),and the digestibility of crude protein,calcium,and phosphorus in Experiment II group was significantly higher than that in the control group and Experiment I group(P<0.05).Conclusion:Replacing corn with extruded corn in the basic diet can effectively improve the growth performance and nutrient digestibility of piglets.Without considering the cost of extruded corn,the best substitute effect is 30%of the total feed proportion of extruded corn.

关 键 词：膨化玉米 仔猪 生长性能 养分消化率 

分 类 号：S828[农业科学—畜牧学]