不同添加水平的紫花苜蓿草粉对育肥猪生长性能、养分表观消化率的影响  

Effects of different levels of alfalfa meal on growth performance and nutrient digestibility of finishing pigs

作　　者：孙健 SUN Jian(College of wildlife resources,Northeast Forestry University,Harbin,Heilongjiang Province 150040,China)

机构地区：[1]东北林业大学野生动物资源学院

出　　处：《中国饲料》2019年第13期75-77,共3页China Feed

摘　　要：为探讨饲料中添加不同水平的紫花苜蓿草粉对育肥猪生长性能、养分表观消化率的影响,采用单因素设计试验,选择体重相近的健康三元杂交育肥猪120头,随机分成4组,每个组3个重复,每个重复10头。1组饲喂基础日粮为对照组,2、3、4组分别在基础日粮中添加2.0%、4.0%、8.0%紫花苜蓿草粉,预试验10 d,试验期60 d。试验期间测定育肥猪生长性能、养分表观消化率。结果表明:(1)试验2、3、4组猪只的平均日采食量均高于1组(P > 0.05),试验2、3组平均日增重较1组分别提高9.84%、12.05%(P < 0.05),料重比分别降低4.33%、6.50%(P < 0.05);(2)试验2、3、4组干物质、粗灰分表观消化率均高于1组(P > 0.05),试验2、3组总能较1组分别提高5.46%、5.85%(P < 0.05),试验2、3组粗蛋白质、粗脂肪的表观消化率较1组分别提高7.24%、9.11%、6.50%、7.20%(P < 0.05)。综上,紫花苜蓿草粉可以提高育肥猪的生长性能和养分表观消化率,并以4.0%添加较为适宜。The aim of this study was to investigate the effects of alfalfa meal at different levels on growth performance and apparent digestibility of nutrients in fattening pigs. 120 healthy three-way crossbred finishing pigs with similar body weight were randomly divided into four groups,each group had 3 replicates,each replicate 10 pigs. One group was fed with the basic diet as the control group. Two,three and four groups were fed with 2.0%,4.0%,8.0% alfalfa meal in the basic diet respectively. The per-experiment period was 10 days and the experiment period was 60 days. The growth performance and nutrient apparent digestibility were measured during the experiment.The results showed as follows:(1)The average feed intake in groups 2,3 and 4 were higher than that in group 1 (P > 0.05). The average daily gain in groups 2 and 3 were increased by 9.84% and 12.05%(P < 0.05) respectively,and the ratio of material to weight were decreased by 4.33%,6.50% respectively.(2)The apparent digestibility of dry matter and crude ash in groups 2,3 and 4 were higher than that in group 1 (P > 0.05). The total digestibility of crude protein and crude fat in groups 2 and 3 were 5.46% and 5.85% higher than that in group 1 (P < 0.05). The apparent digestibility of crude protein and crude fat in groups 2 and 3 were 7.24%,9.11%,6.50% and 7.20% higher than that in group 1 (P < 0.05). Conclusion: Alfalfa meal could improve the growth performance and nutrient apparent digestibility of fattening pigs,and 4.0% was more suitable.

关 键 词：紫花苜蓿草粉 育肥猪 生长性能 表观消化率 

分 类 号：S816.5[农业科学—饲料科学]