【摘要】 试验旨在通过采用T型瘘管法,研究精油对生长猪蛋白质和氨基酸等回肠末端表观消化率的影响。试验选用6头(杜×长×大)去势公猪([28.6±1.3)kg],采用3×3双拉丁方试验设计,分别饲喂正对照日粮:玉米-豆粕型基础日粮+抗生素;负对照日粮:无抗基础日粮;精油组日粮:负对照+0.01%精油。每个试验期为7 d,前5 d为适应期,后2 d为食糜收集期。结果表明,在日粮中添加精油可提高(P<0.05)蛋白质、能量、精氨酸、赖氨酸、亮氨酸、色氨酸、蛋氨酸、丙氨酸、总必需氨基酸、总氨基酸的回肠末端表观消化率,并有提高干物质、苏氨酸、天冬氨酸、丝氨酸和酪氨酸表观消化率的趋势(P<0.10)。在日粮中添加0.01%的精油可提高生长猪蛋白质、能量、总必需氨基酸和总氨基酸的回肠末端表观消化率,并有提高干物质表观消化率的趋势。更多还原

【Abstract】 The current experiment was conducted to evaluate the effects of essential oils supplementation for apparent ileal digestibility(AID) of crude protein and amino acids in growing pigs fitted with a simple T-cannula at the distal ileum.Six crossbred barrows [Duroc×(Landrace×Large White)],with an average body weight of(28.6±1.3) kg,were assigned to one of two 3×3 Latin squares design.The three dietary treatments were a positive control diet(PC,contained antibiotics),a negative control with 0,and a 0.01% essential oils,respectively.Each feeding period included of a 5 days adaptation period followed by 2 days for collection of ileal digesta.The results showed that essential oils supplementation could increase(P<0.05) the AID of crude protein,gross energy,arginine,lysine,leucine,tryptophan,methionine,alanine,total essential amino acids(total EAA) and total amino acids(total AA),as well as leading to a tendency(P<0.10) in improving AID of dry matter,threonine,asparagine,serine and tyrosine.In conclusion,the dietary supplementation of 0.01% essential oils could improve the AID of crude protein,gross energy,total EAA and total AA,and tend to improve the AID of dry matter.更多还原