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
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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 and4 were higher than that in group 1(P > 0.05). The average daily gain in groups 2 and 3 were increased by9.84% 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.
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 and4 were higher than that in group 1(P > 0.05). The average daily gain in groups 2 and 3 were increased by9.84% 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.
引文
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[3]黄勇,马娇丽,王启贵,等.青绿甜高粱秸秆替代部分全价饲粮对鹅生长性能、屠宰性能及肉品质的影响[J].畜牧兽医学报,2017,48(3):483~491.
[4]李林祥,袁扬,杨叶梅,等.苜蓿多糖研究进展及在养殖生产中的应用[J].草业与畜牧,2016,4:48~52.
[5]王明进,熊先勤,何虎,等.紫花苜蓿不同生长期收割产量及营养分析[J].黑龙江畜牧兽医,2015,21:143~146.
[6]许娅虹,孔凡勇,周仕钰,等.紫花苜蓿鲜草对杜长大仔猪生长性能及血液理化指标的影响[J].养猪,2014,2:9~12.
[7]赵静.添加苜蓿草粉对育肥猪生产性能和肉品质的影响[J].草业科学,2015,32(5):809~815.